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Guide to Races in Colorado

Featured Events

Winter Running Series
Winter 2017-2018


Chilly Cheeks Winter Duathlon Series
Winter 2017-2018


Superior Stocking Run
Dec. 17, 2017


Yeti Chase 5K/10K
Jan. 28, 2018


Ralston Creek Half Marathon & 5K
Feb. 18, 2018


Three Creeks Half Marathon
April 22, 2018

Barkin' Dog Duathlon
May 6, 2018


Mt. Evans Ascent
June 9, 2018


Evergreen Sprint Triathlon
July 22, 2018


Littlefoot Triathlon
Sept. 15, 2018


Winter Running Series
Winter 2017-2018


Chilly Cheeks Winter Duathlon Series
Winter 2017-2018


Superior Stocking Run
Dec. 17, 2017


Yeti Chase 5K/10K
Jan. 28, 2018


Ralston Creek Half Marathon & 5K
Feb. 18, 2018


March 2018

  • 3 DreamCatcher Half Marathon, Riverfront Trail System/Edgewater Tap & Grill, Grand Junction, Colorado, 7:00 a.m., 970.234.8772 (9am-5pm)
  • 3 6Pack Winter Series #5, 5k/5M, Promenade Terrace, Westminster, Colorado, 9:00 a.m., 720.722.4226
  • 3 Race to Can Hunger, 2k/5k, Weld Food Bank, Greeley, Colorado, 9:00 a.m., 970.356.2199
  • 3 Animal House Run Fur Fun, 5k, New Belgium Brewing, Fort Collins, Colorado, 10:30 a.m., 970.224.3647
  • 4 Moab Spring Trail Run, 8k/Half, Klondike Bluffs Trails, Moab, Utah, 8:00 a.m., 970.389.4838

  • 4 That Dam Run, 5k/Half, Cherry Creek Dam, Denver, Colorado, 10:00 a.m., 303.694.2202
  • 4 HR 6Pack Series #5, 5k/5M, Heritage Regional Park, Highlands Ranch, Colorado, 9:00 a.m., 720.722.4226
  • 4 Fight For Air Climb, Republic Plaza, Denver, Colorado, 9:00 a.m., 303.388.8708
  • 4 RMRR Crown Hill Park Run, 3M, Crown Hill Park, Lakewood, Colorado, 9:00 a.m., 303.871.8366
  • 4 Spring Run Off, 5k/10k/10M, Dutch Clark Stadium, Pueblo, Colorado, 9:00 a.m., 719.564.9303
  • 10 Lucky Charm Run, 1M/5k/10k, City Park, Denver, Colorado, 8:00 a.m., 720.365.2935
  • 10 Run Through Time, 2M/Half/Marathon, Riverside Park, Salida, Colorado, 8:00 a.m., 719.539.2739
  • 11 Runnin of the Green, 7k, 17th & Wazee, Denver, Colorado, 10:15 a.m., 303.322.9342
  • 11 Polar Plunge Splash & Dash, 5k, City Park, Denver, Colorado, 9:00 a.m., 215.534.2426
  • 17 Erin Go Braugh, 7.77k, Westminster Promenade, Westminster, Colorado, 9:00 a.m., 720.722.4226
  • 17 Sharin O the Green, 5k, Library Park, Fort Collins, Colorado, 8:30 a.m., 970.484.7123
  • 17 St Patricks Day 5k, Gold Run Nordic Center, Breckenridge, Colorado, 9:00 a.m., 970.453.1734
  • 17 5k for St Patricks Day, Downtown, Colorado Springs, Colorado, 10:00 a.m., 719.635.8803
  • 17 St Patricks Day Fun Run, 5k, Jaycee Building, Brush, Colorado, 9:00 a.m., 970.842.5280
  • 17 Leprechaun Run, 5k, Recreation Center, Strausburg, Colorado, 8:00 a.m., 303.622.4260
  • 17 Luck of the Irish 7k, Middle School, Steamboat Springs, Colorado, 9:00 a.m., 720.255.5244
  • 17 HRCA St Patricks Day 5k, Town Center South, Highlands Ranch, Colorado, 9:00 a.m., 303.791.2500
  • 18 Lucky Laces, 5k/10k, City Park, Denver, Colorado, 9:00 a.m., 720.365.2935
  • 24 6Pack Winter Series #6, 5k/10k, Promenade Terrace, Westminster, Colorado, 9:00 a.m., 720.722.4226
  • 24 CMRA Spring Spree, 10k, Platt River Bar & Grill, Littleton, Colorado, 9:00 a.m., 303.955.8496
  • 24 Rocky Mountain Brew Run, 5k, Oskar Blues Brewery, Longmont, Colorado, 10:00 a.m., 303.776.1914
  • 24 Pueblo Feast Day 5k, Center for Southwest Studies, Durango, Colorado, 10:00 a.m., 970.247.7305
  • 25 HR 6Pack Series #6, 5k/10k, Heritage Regional Park, Highlands Ranch, Colorado, 9:00 a.m., 720.722.4226
  • 25 Spring Equinox Half Marathon, 4M/Half, Beirgarten Anheuser Busch Brewing, Fort Collins, Colorado, 9:00 a.m., 970.556.3279
  • 31 Dust Bowl Marathons, 5 Days/5 Marathons, Lamar, Colorado, 6:30 a.m., 575.382.8869
  • 31 Kindness Run, 5k, Berthoud High School, Berthoud, 10:15 a.m., 970.203.5884
  • 31 Hoppin Half, 5k/10k/Half, Central Park, Denver, Colorado, 10:00 a.m., 720.365.2935
  • 31 Bayfield Easter Egg Scramble, 5k, Pine River Senior Center, Bayfield, Colorado, 10:00 a.m., 970.884.9544
  • 31 Bunny Bolt, 5k/10k, City Park, Denver, Colorado, 10:00 a.m., 303.759.1515
  • 31 Vivance, 5k, High School, Palisade, Colorado, 10:00 a.m., 970.254.4800
  • 31 Full Moon Run, various distances, Beckers & El Paso, Manitou Springs, Colorado, 7:00 p.m., 719.599.3583

April 2018

  • 1 Hams & Hamstrings, 5k, Sand Creek Trailhead, Colorado Springs, Colorado, 8:00 a.m., 719.362.3306
  • 7 Grand River Gallop, 2k/5k, Grand River Hospital, Rifle, Colorado, 970.625.6215
  • 7 Baylon Michael Meyer Run, 5k, Lovell Park, Pueblo West, Colorado, 9:30 a.m., 719.240.5281
  • 7 Bobcat Boogie, 1M/5k, College Hill Library, 9:30 a.m., 303.233.0401
  • 7 CollaBEERation Run, 5k, Left Hand Brewing Company, Longmont, Colorado, 10:00 a.m., 720.340.4290
  • 7 Run to Remember, 5k, CSU Oval, Fort Collins, Colorado, 10:00 a.m., 303.818.0818
  • 7 Widowmaker Trail Run, 7M/11M, Trailhead 3M up Little Park Rd, Grand Junction, Colorado, 10:00 a.m., 970.241.6478
  • 7 Nielson Challenge, 2M, North Monument Valley Park, Colorado Springs, Colorado, 8:00 a.m., 719.534.0534
  • 8 Frank Shorter Race 4 Kids Health, 5k, Parkland Street/FirstBank Center, Broomfield, Colorado, 8:00 a.m., 303.464.7191

  • 8 XTERRA Cheyenne Mountain, 5k/12k/24k, Cheyenne Mountain State Park, Colorado Springs, Colorado, 8:00 a.m., 404.421.3231

  • 8 Spring Fling Prairie Dog Half, Apex Recreational Center, Arvada, Colorado, 8:00 a.m., 720.722.4226
  • 8 Platte River Half Marathon & Relay, Buckhorn Exchange Restaurant, Littleton, Colorado, 8:00 a.m., 303.220.1037
  • 8 RMRR City Park Run, 4M, City Park, Denver, Colorado, 9:00 a.m., 303.871.8366
  • 8 Purple Run, 5k, North Monument Valley Park, Colorado Springs, Colorado, 9:00 a.m., 719.648.9996
  • 8 Flying Pig Charity Run, 5k, Spring Canyon Park, Fort Collins, Colorado, 9:00 a.m., 970.266.5409
  • 8 Run the Rim, 5k/10k, Ft Lewis College, Durango, 9:45 a.m., 877.352.2656
  • 8 Rocky Mountain Brew Run, 5k, Zuni Street Brewing, Denver, Colorado, 11:00 a.m., 303.776.1914
  • 10 Dash n Dine #1, 5k, Boulder Reservoir, Boulder, Colorado, 6:00 p.m., 303.870.3011
  • 14 Sillassen Half Marathon & 5k, 840th Road, Arthur, Nebraska, 8:00 a.m., 308.764.7102

  • 14 Desert RATS Running Festival, 50k/Marathon, Mack Trail Head, Fruita, Colorado, 6:30 a.m., 303.249.1112

  • 14 Rattler Trail Races, 10k/25k/50k, Palmer Park, Colorado Springs, Colorado, 6:45 a.m., 719.429.9501
  • 14 Geer Trail Race, 4M, Geer Park, Cortez, Colorado, 9:00 a.m., 920-277-5809
  • 14 Raptor Run, 5k, Barr Lake State Park, Brighton, Colorado, 9:00 a.m., 303.655.1495
  • 14 Bulldog Run, 5k/10k/Half, Modican & Animas Streets, Trinidad, Colorado, 8:00 a.m., 719.680.0171
  • 14 Fartlek 5k, Margaret Carpenter Recreation Center, Thornton, Colorado, 9:00 a.m., 303.466.4272
  • 14 PPRR Tortoise & Hare, 5k, Bijou St Bridge & I25, Colorado Springs, Colorado, 9:00 a.m., 719.598.2953
  • 14 ROARing to Run, 5k, Lincoln OM Elementary School, Grand Junction, Colorado, 9:30 a.m., 970.254.7940 x49122
  • 15 Desert RATS Running Festival Day 2, 5M/Half Marathon, Mack Trail Head, Fruita, Colorado, 8:30 a.m., 303.249.1112

  • 15 Horsetooth Half Marathon, Horsetooth Reservoir, Fort Collins, Colorado, 8:30 a.m., 970.493.4675
  • 17 Dash n Dine #2, 5k, Boulder Reservoir, Boulder, Colorado, 6:00 p.m., 303.870.3011
  • 21 Rumble at 18 Road, 4.5M/11.4M, 18 Road Trails, Fruita, Colorado, 9:00 a.m., 970.744.4450
  • 21 Run with Scissors, Half/Marathon/50k, Adams County Regional Park, Brighton, Colorado, 6:00 a.m., 303.659.8792
  • 21 Loveland Classic, 5k/10k, Davidson Gebhardt, Loveland, Colorado, 8:00 a.m., 970.613.5074
  • 21 CMRA Clear Creek Run, 5k, Runners High, Golden, Colorado, 9:00 a.m., 720.771.3022
  • 21 24 Hours of Palmer Lake, Santa Fe Regional Trail, Monument, Colorado, 8:00 a.m., 859.327.2423
  • 21 Silver Creek Raptor Run, 5k, Silver Creek High School, 9:00 a.m., 720.278.3680
  • 21 Rockin for Recovery, 5k Boardwalk Park, Windsor, Colorado, 8:30 a.m., 970.658.7369
  • 21 Running with the Bears, 5k, Vestal High School, Greeley, Colorado, 9:30 a.m., 607.760.5509
  • 21 Faith Run, 5k, Christ Congregational Church, Fort Morgan, Colorado, 9:00 a.m., 970.867.3992
  • 21 Race for Water, 5k, Duane Field at CU Boulder, Boulder, Colorado, 8:30 a.m., 303.720.9565
  • 21 Thunder Dash Splash, 5k, Prairie View High School, Henderson, Colorado, 9:00 a.m., 303.655.8800
  • 21 Mesa View Elementary Run, 5k, Eagle Rim Park, Grand Junction, Colorado, 9:00 a.m., 417.293.8311
  • 21 Broncos 7k, Budweiser Brewery Experience, Fort Collins, Colorado, 9:00 a.m., 720.258.3100
  • 21 Victims Right Run, 1M/5k, North Monument Valley Park, Colorado Springs, Colorado, 9:00 a.m., 719.964.0645
  • 22 Three Creeks Half Marathon, Cherry Creek State Park, Denver, Colorado, 8:00 a.m., 303.642.7917

  • 22 In My Shoes Run, 5k, Frontier Academy School, Greeley, Colorado, 8:00 a.m., 970.339.5360
  • 22 Hogback Hustle, 1M/5k, Bradford Elementary, New Castle, Colorado, 9:00 a.m., 724.656.4756
  • 22 Earth Day Run, 5k, Rotary Park, Durango, Colorado, 11:00 a.m., 970.382.9244
  • 22 Rockin on the River 5k, Hudson Gardens Event Center, Littleton, Colorado, 9:00 a.m., 303.730.4610
  • 28 Dash n Dine #3, 5k, Boulder Reservoir, Boulder, Colorado, 6:00 p.m., 303.870-3011
  • 28 Westminster Trail Races, 5k/10k/Half, Recreation Center, Westminster, Colorado, 858.775.7104
  • 28 Fast and Furriest, 5k, CSU Main Campus, Fort Collins, Colorado, 9:00 a.m., 970.297.5000
  • 28 Cheyenne Mountain Trail Races, 10k/25k/50k, Cheyenne Mountain State Park, Colorado Springs, Colorado, 719.963.1747
  • 28 Donut Dash, 5k/10k, City Park, Denver, Colorado, 8:45 a.m., 720.985.9047
  • 28 Twin Silo Sprint, 5k, Fossil Ridge High School, Fort Collins, Colorado, 9:00 a.m., 970.488.6260
  • 28 Arbor Day Run, 5k, City Park, Fort Collins, Colorado, 9:15 a.m., 970.402.4343
  • 28 Aardvark Run, 2k/5k, Greeley Campus, Greeley, Colorado, 8:45 a.m., 970.339.6421
  • 28 Pueblo to Pueblo Run, 2M/10k/11M, Cultural Center, Cortez, Colorado, 10:00 a.m., 970.565.1151
  • 28 Rocky Top Middle School Run, 5k, Rocky Top Middle School, Thornton, Colorado, 9:00 a.m., 720.972.2200
  • 29 Graces Race, 5k, Willow Creek Open Space, Centennial, Colorado, 9:00 a.m., 303.758.2130
  • 29 Colorado Rockies Home Run for the Homeless, 5k, Coors Field, Denver, Colorado, 8:00 a.m., 303.312.2411

May 2018


  • 5 Hope House Derby Dash, 5k, Lake Arbor Park, Arvada, Colorado, 9:00 a.m., 303.429.1012 x237

  • 5 Adams 12 Five Star 5k for Wellness, 5k, Adams County Fairgrounds, Brighton, Colorado, 8:00 a.m., 720.972.5921

  • 5 Collegiate Peaks Trail Run, 25M/50M, Community Center, Buena Vista, Colorado, 6:30 a.m., 719.395.6612
  • 5 Greenland Trail Races, 8M/25k/50k, Greenland Open Space, Larkspur, Colorado, 7:00 a.m., 720.985.9047
  • 5 May Day 5k, Railroad Park North Shelter, Fort Lupton, Colorado, 8:30 a.m., 303.857.4200 x166
  • 5 Bob Turner Classic, 5k, Turner Middle School, Berthoud, Colorado, 8:00 a.m., 970.613.7400
  • 5Hayden Cog Run, 5k/8.4M, Hayden Town Park, Steamboat Springs, Colorado, 10:00 a.m., 970.879.0880
  • 5 Furry Scurry, 2M, Washington Park, Denver, Colorado, 9:00 a.m., 303.751.5772
  • 5 BT5k, Great Lawn Park, Denver, Colorado, 9:00 a.m., 800.886.1281
  • 5 Blossom Day Run, 5k/5M/Half, Centennial Park, Canon City, Colorado, 8:00 a.m., 719.315.4114
  • 5Grand Valley Mammoth Marathon, Town Center Plaza, Palisade, Colorado, 6:30 a.m., 970.464.9266
  • 5Cinco Cinco 5k, Edgewater Brewery, Grand Junction, Colorado, 9:00 a.m., 970.250.5387
  • 5Take Five in the Garden, 5k/5M, Rockledge Ranch, Colorado Springs, Colorado, 8:00 a.m., 719.635.8803
  • 6 Barkin Dog Duathlon, (5k Run/30k Bike/5k Run) (1.2M Run/11M Bike/5k Run), Individual & Relay Teams, Cherry Creek State Park, Denver, Colorado, 7:00 a.m., 303.642.7917

  • 6 RMRR Stapleton Run, 5M, Stapleton Central Park, Denver, Colorado, 8:00 a.m., 303.871.8366
  • 6 Run for Remembrance, 5k, Clement Park, Littleton, Colorado, 8:00 a.m., 303.982.4400
  • 6 Colorado Marathon, 5k/10k/Half/Marathon, Fort Collins Transportation Center, Fort Collins, Colorado, 6:00 a.m., 970.227.7384
  • 6Emerge 5k, Boulder Reservoir, Boulder, Colorado, 9:30 a.m., 720.212.7527
  • 6Run Walk Thrive, 5k, Family Life Services, Colorado Springs, Colorado, 9:00 a.m., 719.632.4661
  • 6Fairmont Firebird Chase, 1k/5k, Fairmount Park, Golden, Colorado, 9:00 a.m., 303.589.3429
  • 8 Dash n Dine #4, 5k, Boulder Reservoir, Boulder, Colorado, 6:00 p.m., 303.870.3011
  • 12 Rabbit Valley Half Marathon, Rabbit Valley Trailhead, Fruita, Colorado, 7:15 a.m., 303.249.1112

  • 12 Quad Rock Trail Races, 25M/50M, Lory State Park, Fort Collins, Colorado, 5:30 a.m., 970.404.2074 (permit pending)
  • 12 CMRA XC Challenge, Great Lawn Park, Denver, Colorado, 8:20 a.m., 720.480.2370
  • 12 Running with the Regiment, 4M, East Parking Lot, Loveland High School, Loveland, Colorado, Noon, 970.443.3277
  • 12 Fruita Girls on the Run, 5k, Shelledy Elementary School, Fruita, Colorado, 10:00 a.m., 970.257.9267
  • 12 Edgewater 5k, Citizens Park, Edgewater, Colorado, 720.663.7176
  • 12 Sean May Memorial Run, 5k/9M, Barr Lake State Park, Brighton, Colorado, 9:00 a.m., 303.845.9809
  • 12 Glenwood Springs Walk MS, 5k, No Name Exit, Glenwood Springs, Colorado, 8:00 a.m., 970.257.1831
  • 12 Tommyknocker Ultras, 12 Hrs, White Ranch Open Space, Golden, Colorado, 6:00 a.m., 720.624.9237
  • 12 Womens Distance Festival, 5k, North Monument Valley Park, Colorado Springs, Colorado, 10:00 a.m., 719.635.3833
  • 12Montrose Girls on the Run, 5k Cerise Park, Montrose, Colorado, 10:00 a.m., 970.257.9267
  • 12AirLife Memorial, 5k/10k, Hudson Gardens, Littleton, Colorado, 7:00 a.m., 303.360.3400
  • 12CMRA Stapleton Central Park XC Run, 6k, Stapleton Central Park, Denver, Colorado, 10:00 a.m., 303.738.0115
  • 12Water Tower Desert Run, 5M, 27 ? Rd 1.5M N of H Rd, Grand Junction, Colorado, 7:30 a.m., 970.241.6478
  • 13 Colorado Womens Classic, 5k/10k/10M, Westminster Promenade, Westminster, Colorado, 8:30 a.m., 720.722.4226
  • 13 Mothers Day 5k, City Park, Denver, Colorado, 9:30 a.m., 303.403.0978
  • 13Greenwood Village Girls on the Run, 5k, Cherry Creek High School, Greenwood Village, Colorado, 9:00 a.m., 720.879.2354
  • 15 Dash n Dine #5, 5k, Boulder Reservoir, Boulder, Colorado, 6:00 p.m., 303.870.3011
  • 19 Carbon Valley Half Marathon & 5k, Half Marathon/Relay/5k, Firestone Sports Complex, Firestone, Colorado, 8:00 a.m., 720.331.4678

  • 19 Spring Sprint, 5k/10k, Willow Creek Park, Lamar, Colorado, 8:00 a.m., 719.336.4376
  • 19 Run to the Shrine, 5k/10k, Cheyenne Mountain Zoo, Colorado Springs, Colorado, 719.633.9925
  • 19 Cottonwood Classic, 5k, Thorncreek Shopping Center, Thornton, Colorado, 8:00 a.m., 303.694.2202
  • 19 Spirit Challenge, 5k/10k, Middle School, Steamboat Springs, Colorado, 9:00 a.m., 970.879.0880
  • 19 Boneyard Boogie, 11k, Eagle Pool & Ice Rink, Eagle, Colorado, 9:00 a.m., 970.479.2280
  • 19 Fear the Deer Trail Run, Half Marathon, Deer Creek Canyon Park, Littleton, Colorado, 8:00 a.m., 720.352.3638
  • 19Canine on the Creek, 5k, Charlies Place Animal Shelter, Dumont, Colorado, 10:30 a.m., 303.567.4822
  • 19Federal Cup, 5k, Federal Center, Lakewood, Colorado, 8:15 a.m., 303.667.2601
  • 19Black Canyon Ascent, 6M, CO Hwy 347 & US Hwy 50, Montrose, Colorado, 7:30 a.m., 970.901.9667
  • 19Peace Officers Valor Run, 5k, Memorial Park, Colorado Springs, Colorado, 9:00 a.m., 719.229.1406
  • 19Run or Roll, 2k/5k, Hope Therapy Pool Center, Greeley, Colorado, 9:00 a.m., 970.339.2444
  • 20 Norad Trail Race, 4M/Half/Marathon, Cheyenne Mountain State Park, Colorado Springs, Colorado, 7:00 a.m., 719.429.9501
  • 20Miles for Smiles, 5k, Westfield Village Park, Westminster, Colorado, 9:00 a.m., 720.940.6078
  • 20Tails on the Trail, 5k, Loyal Dukes Dog Park, Salida, Colorado, 9:00 a.m., 719.395.2737
  • 22 Dash n Dine #6, 5k, Boulder Reservoir, Boulder, Colorado, 6:00 p.m., 303.870.3011
  • 26 High Drive Challenge, 4M/10M, Bear Creek Regional Park, Colorado Springs, Colorado, 7:00 a.m., 719.429.9501
  • 26 Memorial Day Run, 5k/10k/30k, Douglas County High School, Castle Rock, Colorado, 8:00 a.m., 720.425.2978
  • 26Mosaic Run, 2M/5k, Amazing Grace Fellowship, Pueblo West, Colorado, 8:00 a.m., 719.250.5840
  • 26Garfield Grumble, 5M, Mt Garfield Trailhead, Palisade, Colorado, 8:00 a.m., 970.245.4243
  • 27 Run for Shelter, 5k/10k, Reynolds Landing Park, Littleton, Colorado, 8:00 a.m., 720.316.6937
  • 27Buena Vista Spirit Trail Runs, 8k/Half, Barbara Whipple Trail System, Buena Vista, Colorado, 8:15 a.m., 719.395.9206
  • 27Run for Shelter, 5k/10k, Reynolds Landing Park, Denver, Colorado, 8:00 a.m., 720.576.1538
  • 27Narrow Gauge Runs, 4M/10M, Santa Rita Park, Durango, Colorado, 8:00 a.m., 206.856.1063
  • 28 Colorado Run, 4M/10k, Spring Canyon Park, Fort Collins, Colorado, 8:00 a.m., 970.556.3279
  • 28 Valor Races, 5M/Half/Marathon, Vail Village, Vail, Colorado, 8:00 a.m., 970.445.7076
  • 28 Bolder Boulder, 10k, 30th & Pearl, Boulder, Colorado, 7:00 a.m., 303.444.7223
  • 31 Boulder Stroke & Stride 5k Run, Boulder Reservoir, Boulder, Colorado, 6:00 p.m., 303.408.1195

June 2018

  • 2 Into the Wild Running Festival, Half/Marathon/Ultra, Wild Animal Sanctuary, Keenesburg, Colorado, 6:00 a.m., 303.536.0118
  • 2 North Fork Runs, 50k/50M, Pine Valley Ranch Park, Pine, Colorado, 7:00 a.m., 303.903.3533
  • 2 Golden Gate Dirty 30, 12M/50k, Golden Gate Park, Black Hawk, Colorado, 6:00 a.m., 303.990.9049
  • 2 Steamboat Marathon, 10k/Half/Marathon, 8th & Oak, Steamboat Springs, Colorado, 7:30 a.m., 970.285.3550
  • 2 The Beer Relay, 6 hrs, Bohn Park, Lyons, Colorado, 10:00 a.m., 401.580.9548
  • 2 Hardscrabble Mountain Trail Run, 5k/10k, Bear Basin Ranch, Westcliffe, Colorado, 10:00 a.m., 719.783.3018
  • 2 Run for the Door, 5k, Cheeseman Park, Denver, Colorado, 8:30 a.m., 303.830.2201
  • 2 Run the Rockies Trail Race, 10k/Half, Frisco Adventure Park, Frisco, Colorado, 8:00 a.m., 970.668.9133
  • 2 Cattle Crossing Run, 5k, Tallman Meadow Park, Parker, Colorado, 8:00 a.m., 303.805.6304
  • 2 Elk Meadow Trail Race, 5k/10k, Buchanan Park Recreation Center, Evergreen, Colorado, 8:00 a.m., 720.880.1000
  • 2Park to Art Races, 5k/10k/Half, Memorial Park Trail System, Meeker, Colorado, 8:00 a.m., 970.878.3403
  • 2Fire Hydrant 5k, Edora Park, Fort Collins, Colorado, 8:30 a.m., 970.226.3647
  • 2Mike the Headless Chicken, 5k, Community Center, Fruita, Colorado, 9:00 a.m., 970.858.0360
  • 2Taste of Louisville, 5k/12k, Main Street, Louisville, Colorado, 8:00 a.m., 303.694.2202
  • 2XTERRA Turkey Track Trail Runs, 5k/10k/Half/Marathon, Turkey Springs Rd & County Rd 600, Pagosa Springs, Colorado, 8:00 a.m., 303.475.6053
  • 2Gluten Free Gallop, 5k, Clement Park, Littleton, Colorado, 8:00 a.m., 303.819.5531
  • 2Heroes of Hope Run, 1M/5k/10k, Lutheran Medical Center, Wheat Ridge, Colorado, 8:30 a.m., 303.467.4800
  • 3 Palmer Lake Races, 10k/Half, Palmer Lake, Colorado, 8:00 a.m., 858.775.7104
  • 3 Skirt Sports 13er, 5k/10k/Half, Home Depot, Louisville, Colorado, 6:45 a.m., 720.722.4226
  • 3 RMRR Bible Park Run, 4k, Bible Park, Denver, Colorado, 8:00 a.m., 303.871.8366
  • 3Crazy Legs 10k, Devils Backbone Open Space, Loveland, Colorado, 7:00 a.m., 219-873-6296
  • 3Miles for our Military, 5k, Clement Park, Littleton, Colorado, 8:00 a.m., 303.708.5210
  • 7 Boulder Stroke & Stride 5k Run, Boulder Reservoir, Boulder, Colorado, 6:00 p.m., 303.408.1195
  • 8 Ragnar Trail Relay, 120M, Snowmass, Colorado, 801.499.5024
  • 8Apres 5k, Mountain Plaza/Climbing Wall, Vail, Colorado, 5:30 p.m., 970.949.1999
  • 9 Mt Evans Ascent, 14.5M, Mt Evans, Idaho Springs, Colorado, 7:30 a.m., 303.642.7917
  • 9 Mueller Marathon, 25k/Marathon, Mueller State Park, Divide, Colorado, 7:00 a.m., 719.429.9501
  • 9 Southpark Trail Runs, 15M/28M, South Park City, Fairplay, Colorado, 8:00 a.m., 720.624.9237
  • 9 Runoff Runoff, 6k/Half/Marathon, Ball Park, Creede, Colorado, 8:00 a.m., 719.589.2230
  • 9 CMRA Elk Meadow Trail Run, 9k, Elk Meadow, Evergreen, Colorado, 8:00 a.m., 303.550.8014
  • 9, South Park Trail Marathon, Half/Marathon, South Park City, Fairplay, Colorado, 8:00 a.m., 720.624.9237
  • 9Heart Run, 5k, Weidner Field, Colorado Springs, Colorado, 866.430.9255
  • 9Jodis Race for Awareness, 5k, City Park, Denver, Colorado, 8:00 a.m., 303.694.2202
  • 9Steamworks Half Marathon, Sports Club, Durango, Colorado, 8:00 a.m., 970.903.6774
  • 9Stepping Stone 5k, Clement Park, Littleton, Colorado, 9:00 a.m., 720.839.4626
  • 10 Garden of the Gods Run, 10k/10M, Garden of the Gods, Manitou Springs, Colorado, 7:00 a.m., 719.473.2625
  • 10 FiBark Tenderfoot Mountain Hill Climb, 2M, Tenderfoot Mountain, Salida, Colorado, 6:00 p.m., 719.539.6738
  • 1010k Spring Runoff, Charlie/Gore Creek Drive, Vail, Colorado, 8:00 a.m., 970.777.2015
  • 10Strides for Epilepsy, 5k, City Park, Denver, Colorado, 9:00 a.m., 303.694.2202
  • 10I Know A Fighter 5k, Great Lawn Park, Denver, Colorado, 972.587.7814
  • 14 Boulder Stroke & Stride Run, 5k, Boulder Reservoir, Boulder, Colorado, 6:00 p.m., 303.408.1195
  • 14 Summer 6Pack Series #1, 1M/5k, Westminster City Park, Westminster, Colorado, 6:30 p.m., 720.722.4226
  • 16 FiBark Road Races, 5k/10k, Thonhoff Park, Salida, Colorado, 8:00 a.m., 719.539.6738
  • 16 Bacon Burner, 6k, Marina, Frisco, Colorado, 9:30 a.m., 970.668.9133
  • 16 Leadville Trail Marathon & Half, 6th Street Gym, Leadville, Colorado, 8:00 a.m., 719.219.9351
  • 16 Eagle Half & 10k, Brush Creek Elementary School, Eagle, Colorado, 8:00 a.m., 720.835.9141
  • 16 Howelsen 8 Miler, 4M/8M, Olympian Hall, Steamboat Springs, Colorado, 8:00 a.m., 970.879.0880
  • 16Jeremy Bitner Fallen Officer Run, 5k/10k, Cornerstone Park, Englewood, Colorado, 8:00 a.m., 720.281.5938
  • 17 Estes Park Races, 5k/10k/Half Marathon/Marathon, Middle & High Schools, Estes Park, Colorado, 6:00 a.m., 970.214.4128
  • 17 FiBark Trail Race, 10k, Arkansas Hills Trail System F Street Bridge, Salida, Colorado, 8:00 a.m., 719.539.6738
  • 17 Arvada Fathers Day Run, 5k/10k, Apex Center, Arvada, Colorado, 8:00 a.m., 720.722.4226
  • Denver Fathers Day Run, 5k/10k, Central Park, Denver, Colorado, 8:00 a.m., 720.365.2935
  • 21 Boulder Stroke & Stride 5k Run, Boulder Reservoir, Boulder, Colorado, 6:00 p.m., 303.408.1195
  • 23 Slacker Races, 4M/Half, Loveland Ski Area, Georgetown, Colorado, 8:00 a.m., 303.679.2312

  • 23 Climb for Courage, 2700 stairs, Falcon Stadium, USAFA, Colorado, 8:39 a.m., 719.266.3021
  • 23 San Juan Solstice Run, 50M, Town Armory, Lake City, Colorado, 5:00 a.m., 970.944.2269
  • 23 Mountain Ridge Half Marathon, 10k/Half, Mountain Ridge Middle School, Highlands Ranch, Colorado, 7:30 a.m., 720.835.9141
  • 23Paws & Sneakers, 1M/5k, Twin Rivers Park, Evans, Colorado, 9:00 a.m., 970.506.9550
  • 23Mancos Cowboy Races, 5k/Half, Boyle Park, Durango, Colorado, 9:00 a.m., 814.558.9519
  • 24Purple Stride 5k, Washington Park, Denver, Colorado, 7:00 a.m., 310.725.0251
  • 24Kyle Macintosh Memorial Run, 5k, Omni Interlocken Resort, Broomfield, 720.891.2926
  • 26 Mountain Goat Kids Trail Running Series, 0.5M/1.5M/5k, Frisco Day Lodge, Frisco, Colorado, 5:45 p.m., 970.668.9133
  • 28 Boulder Stroke & Stride 5k Run, Boulder Reservoir, Boulder, Colorado, 6:00 p.m., 303.408.1195
  • 28 Summer 6Pack Series #2, 2M/5k, Westminster City Park, Westminster, Colorado, 6:30 p.m., 720.722.4226
  • 30Littleton Firecracker 5k, Clement Park, Littleton, Colorado, 8:00 a.m., 303.901.2709
  • 30Winter Park Rendezvous Run for Independence, 5M, Vintage Hotel, Winter Park, Colorado, 7:30 a.m., 970.726.4118

July 2018

  • 1 Mountain Madness, 10k/Half, Howelsen Hill, Steamboat Springs, Colorado, 7:30 a.m., 970.879.0880
  • 1Turkey Flats Trail Run, 9.6M, Glade Park, Grand Junction, Colorado, 9:00 a.m., 970.434.9753
  • 4 Georgetown Tom Hayden Memorial 4th Run, 5k, Strausse Park, Georgetown, Colorado, 8:00 a.m., 303.679.2426

  • 4Aspen Buddy Race, 5M, Rio Grande Park, Aspen, Colorado, 8:00 a.m., 970.925.3414
  • 4Bayfield Firecracker 5k, Momentum 24/7 Gym, Bayfield, Colorado, 8:00 a.m., 970.385.4747
  • 4Boulder 4 on the Fourth, Avery Brewing, Boulder, Colorado, 9:00 a.m., 303.440.4324
  • 4 Breckenridge Independence Day Trail run, 10k, Carter Park, Breckenridge, Colorado, 7:00 a.m., 970.453.1734
  • 4 Denver Liberty Run, 4M, Washington Park, Denver, Colorado, 8:30 a.m., 303.522.4387
  • 4 Erie Firecracker Run, 4k/4M, Community Center, Erie, Colorado, 8:00 a.m., 814.454.7191
  • 4Firestone Firecracker Runs, 5k, Clem DuFour Park to Hart Park, Dacono, Colorado, 8:00 a.m., 303.833.3660
  • 4 Fort Collins Firecracker 5k, City Park, Fort Collins, Colorado, 7:30 a.m., 970.556.3279
  • 4Greeley Run 4 Greeley, 5k, 15th & 10th Ave, Greeley, Colorado, 7:15 a.m., 970.356.6964
  • 4HRCA Independence Day 5k, Dorchester Street/Town Center South, Highlands Ranch, Colorado, 8:00 a.m., 303.791.2500
  • 4Indian Hills Fun Run, 5k, Arrowhead Park, Indian Hills, Colorado, 8:00 a.m., 303.697.4568
  • 4Leadville Firecracker 5k, Downtown Leadville, Colorado, 8:30 a.m., 605.641.7580
  • 4 Longmont Half & 5k, McIntosh Lake, Longmont, Colorado, 6:00 a.m., 720.722.4226
  • 4 Louisville Let Freedom Run, 5k/10k/Kids, Streets Fitness, Louisville, Colorado, 8:00 a.m., 970.449.2051
  • 4Meeker Massacre Run for your Life, 5k, Downtown Plaza, Meeker, Colorado, 7:30 a.m., 970.878.3501
  • 4Palmer Lake 4th of July Fun Run, 4M, Santa Fe Trail & Palmer Lake, Palmer Lake, Colorado, 7:00 a.m., 303.919.7269
  • 4Superior Mile, Community Park, Superior, Colorado, 7:00 a.m., 303.499.3675
  • 4Tellurides Fourth of July Rundola, 1M/1800 ft elevation, Base of Gondola, Telluride, Colorado, 8:00 a.m., 970.728.8717
  • 7 Northglenn Firecrackers & Flapjacks Run, 5k, Memorial Park, Northglenn, Colorado, 7:30 a.m., 303.451.9017
  • 7 Silverheels Endurance Run, 100M, Cohen Park, Fairplay, Colorado, 4:00 a.m., 720.624.9237
  • 7 CMRA White Ranch Trail Run, 10k, White Ranch, Golden, Colorado, 8:00 a.m., 303.554.0870
  • 7 Walk, Run & Wag 5k, Sloans Lake, Denver, Colorado, 8:00 a.m., 303.287.3277
  • 7 Hahns Peak Hill Climb, 7.3M, The Cabins at Historic Columbine General Store, Steamboat Springs, Colorado, 9:30 a.m., 303.915.0396
  • 7Nielson Challenge, 2M, North Monument Valley Park, Colorado Springs, Colorado, 8:00 a.m., 719.534.0534
  • 8 Summer Roundup Trail run, 12k, Bear Creek Park, Colorado Springs, Colorado, 7:00 a.m., 719.473.2625
  • 8 Sliver Rush 50 Run, 50M, Dutch Henry Hill, Leadville, Colorado, 9:00 a.m., 719.219.9351
  • 8 Last Call 50 Miler, 50M, Cohen Park, Fairplay, Colorado, 12:00 a.m., 720.624.9237
  • 8 RMRR Stone House Run, 2M/2.4M, Stone House, Lakewood, Colorado, 8:00 a.m., 303.871.8366
  • 8Crag Crest Trail Run, 10.5M, Island Lake Trailhead, Grand Mesa, Colorado, 9:00 a.m., 970.241.6478
  • 10 Mountain Goats Kids Trail Running Series, 0.5M/1.5M/5k, Frisco Day Lodge, Frisco, Colorado, 5:45 p.m., 970.668.9133
  • 12 Boulder Stroke & Stride 5k Run, Boulder Reservoir, Boulder, Colorado, 6:00 p.m., 303.408.1195
  • 12 Summer 6Pack #3, 5k, Westminster City Park, Westminster, Colorado, 6:30 p.m., 720.722.4226
  • 13Rogers River Run, 5k Rogers Grove, Longmont, Colorado, 7:45 p.m., 303.651.8404
  • 14 Grin & Bear it Trail Run, 9.3M, Nordic Center, Crested Butte, 9:00 a.m., 970.349.1707 x4
  • 14 Sand Creek Half Marathon, 5k/10k/Half, Stapleton Central Park, Denver, Colorado, 7:00 a.m., 720.365.2935
  • 14 Aspen Valley Marathon, 5k/Marathon, Wagner Park, Aspen, Colorado, 7:00 a.m., 970.309.7214
  • 14Rocky Mountain Brew Runs, 5k Great Frontier Brewing, Lakewood, Colorado, 11:00 a.m., 303.776.1914
  • 15 Mountain Running Series, 5k/10k/Half/50k, Copper Mountain, Colorado, 8:00 a.m., 303.877.1379
  • 15Barr Trail Mountain Race, 12M, Cog Railway Station, Manitou Springs, Colorado, 7:00 a.m., 719.685.5964
  • 15Donor Dash, 5k, Washington Park, Denver, Colorado, 8:00 a.m., 303.995.1200
  • 20Hardrock Hundred Mile Endurance Run, Silverton, Colorado, 970.259.3693
  • 21 Prairie Dog Races, 5k/10k/Half, Middle School, Castle Rock, Colorado, 8:00 a.m., 720.722.4226
  • 22 Black Hawk Trail Races, 10k/Half, Golden Gate State Park, Nott Creek Trail, Golden, Colorado, 858.259.1501
  • 22Rocky Mountain Brew Run, 5k, Woods Boss Brewing, Denver, Colorado, 11:00 a.m., 303.776.1914
  • 26 Boulder Stroke & Stride 5k Run, Boulder Reservoir, Boulder, Colorado, 6:00 p.m., 303.408.1195
  • 26 Summer 6Packs #4, 5k/4M, Westminster City Park, Westminster, Colorado, 6:30 p.m., 720.722.4226
  • 27Blue Moon Trail run Series #2, 5k/8k, Pinon Valley Park, Colorado Springs, Colorado, 6:00 p.m., 719.385.7942
  • 27Chase the Moon 12 hr Endurance Run, Mountain Vista High School, Highlands Ranch, Colorado, 7:00 p.m., 303.320.EDGE
  • 28 Elevation 5k, West Jeff Elementary School, Conifer, Colorado, 8:00 a.m., 303.982.5255

  • 28 Eldora Trail 10k, Eldora Ski Area, Nederland, Colorado, 7:30 a.m., 303.960.8129

  • Pikes Peak Ultra, 30k/50M, Bear Creek Regional Park, Colorado Springs, Colorado, 5:30 a.m., 719.429.9501
  • 28 Never Summer Trail Race, 100k, Gould Community Center, Walden, Colorado, 5:30 a.m., 970.404.2074
  • 28 Human Race, 5k/10k/Half, Museum of Discovery & Civic Center park, Fort Collins, Colorado, 6:30 a.m., 970.556.3279
  • 28 Grand Mesa Ultra Trail Runs, 30k/55k/50M/100M, Grand Mesa Lodge, Grand Junction, Colorado, 5:00 a.m., 970.856.3250
  • 28Living Journeys Half Marathon, Red Lady Lift, Mt Crested Butte, Colorado, 8:30 a.m., 970.349.2777
  • 28Desert Championships Run, 5.75M, 3 Dam Course, 27 ? Rd, Grand Junction, Colorado, 7:30 a.m., 970.241.6478
  • 28ADA Classic Run, 5k/10k, North Valley Monument Park, Colorado Springs, Colorado, 8:30 a.m., 719.635.8803
  • 28Rocky Mountain Brew Run, 5k, Odd 13 Brewing, Lafayette, Colorado, 11:00 a.m., 303.776.1914

August 2018

  • 1 CMRA Fairmount Trail Run, 5k, Fairmount Park, Golden, Colorado, 6:30 p.m., 303.270.3509
  • 2 Stroke & Stride 5k Run, Boulder Reservoir, Boulder, Colorado, 6:00 p.m., 303.408.1195
  • 3 Eldorado Cure 4 Miler, Eldorado Springs, Boulder, Colorado, 6:30 p.m.

  • 3 RMRR DeKoevend Park Run, 5k, DeKoevend Park, Englewood, Colorado, 6:30 p.m., 303.871.8366
  • 4 Funnel Cake Run, 1M/5k, Adams County Fairground, Brighton, Colorado, 8:00 a.m., 303.637.5652

  • 4 Meyer Ranch Park Trail Race, 10M, Meyer Ranch Park, Evergreen, Colorado, 8:00 a.m., 720.880.1000
  • 4 Sheep Mountain Endurance Runs, 50k/51M, Town Beach, Fairplay, Colorado, 6:00 a.m., 720.624.9237
  • 4 Kennebec Challenge Mountain Run, 8.5M/15M, La Plata Canyon, La Plaza, Colorado, 8:00 a.m., 970.247.0312
  • 4 Winter Park Half Marathon, 5k/Half, Grand Park, Winter Park, Colorado, 8:00 a.m., 970.726.8009
  • 4 Rocky Mountain Half Marathon, Stanley Hotel, Estes Park, Colorado, 6:00 a.m., 949.295.3302
  • 4 HEARS 5k Experience, Bear Creek Park East, Colorado Springs, Colorado, 8:30 a.m., 719.649.9220
  • 4 Nielson Challenge, 2M, North Monument Valley Park, Colorado Springs, Colorado, 8:00 a.m., 719.534.0534
  • 4 Rocky Mountain Brew Run, 5k, Call to Arms Brewing, Denver, Colorado, 11:30 a.m., 303.776.1914
  • 4 Run for Rwanda, 5k, Cottonwood Creek Park, Colorado Springs, Colorado, 8:00 a.m., 719.351.6647
  • 5 Evergreen Town Race, 5k/10k, Evergreen Lake, Evergreen, Colorado, 8:00 a.m., 303.643.1857

  • 5 XTERRA Castle Rock, 3k/5k/10k/20k, Philip S Miller Park, Castle Rock, Colorado, 7:00 a.m., 719.505.8717

  • 5 Beaver Creek Races, 10k/Half, Beaver Creek/Creekside Park, Avon, Colorado, 8:00 a.m., 858.775.7104
  • 5 The Stumpy Stampede, 5k/10k, JCC Ranch Camp, Elbert, Colorado, 10:00 a.m., 303.316.6384
  • 7 Mountain Goats Kids Trail Running Series, 0.5M/1.5M/5k, Frisco Day Lodge, Frisco, Colorado, 5:45 p.m., 970.668.9133
  • 9 Summer 6Pack Series #5, 5k/5M, Westminster City Park, Westminster, Colorado, 6:30 p.m., 720.722.4226
  • 11 Silverton Ultra Marathon, 100k, Silverton, Colorado, 6:00 p.m., 303.990.9049
  • 11 Run the Rockies Races, 10k/Half, Frisco Adventure Park, Frisco, Colorado, 8:00 a.m., 970.668.9133
  • 11 So Long to Summer Runs, 5k/10k, Salisbury Park, Parker, Colorado, 8:00 a.m., 303.841.0353
  • 11 Holy Cow Trail Stampede, 5k/10k, Christopher Fields, Westminster, Colorado, 9:00 a.m., 720.722.4226
  • 11 Aspen Backcountry Marathon, Koch Park, Aspen, Colorado, 6:00 a.m., 970.429.2083
  • 11 Georgetown to Idaho Springs Half Marathon, Georgetown Lake, Georgetown, Colorado, 8:00 a.m., 303.378.2404
  • 11 Mayors Cup, 5k/10k, Woodland Park, Colorado, 8:00 a.m., 719.687.5211
  • 11 Mt Sneffels Marathon & Half Marathon, Ouray Hot Springs Park, Ourey, Colorado, 6:30 a.m., 970.325.0228
  • 12 Leadville 10k Run, 6th & Harrison, Leadville, Colorado, 12:00 p.m., 719.219.9351
  • 12 Steamboat Stinger Races, Half/Marathon, Howelson Base Area, Steamboat Springs, Colorado, 970.879.6141.301
  • 18 Faith Chase, 5k, Van Bibber Park, Arvada, Colorado, 8:00 a.m., 303-618.4305

  • 18 Pikes Peak Ascent, Half Marathon, Middle/High Schools, Manitou Springs, Colorado, 7:00 a.m., 719.473.2625
  • 18 Leadville Trail 100, 100M, 6th & Harrison, Leadville, Colorado, 3:00 a.m., 719.219.9351
  • 18 Peach Festival, 5k, CSU Hughes Stadium, Fort Collins, Colorado, 8:30 a.m., 970.460.6848
  • 18 Just Peachy 5k, Palisade, Colorado, 970.744.4450
  • 18 Rocky Mountain Brew Run, 5k, Wibby Brewing, Longmont, Colorado, 11:00 a.m., 303.776.1914
  • 19 Pikes Peak Marathon, Middle/High School, Manitou Springs, Colorado, 7:00 a.m., 718.473.2625
  • 19 Dog Days of Summer Runs, 5k/10k, Central Park, Denver, Colorado, 8:00 a.m., 720.365.2935
  • 23 Summer 6Pack Series #6, 5k/10k, Westminster City Park, Westminster, Colorado, 6:30 p.m., 720.722.4226
  • 24 Blue Moon Trail Run #3, 5k/10k, Pinon Valley Park, Colorado Springs, Colorado, 6:00 p.m., 719.385.7942
  • 25 Bergen Peak Half Marathon, Buchanan Park Recreational Center, Pioneer Trailhead, Evergreen, Colorado, 8:00 a.m., 720.880.1226
  • 25 Thirsty 13 Half Marathon, Ska Brewing, Durango, Colorado, 7:00 a.m., 970.903.6774
  • 25 Continental Divide Trail Run, 15.5M, Knoll Park Lot (Shuttles to Fish Creek start), Steamboat Springs, Colorado, 8:00 a.m., 970.879.0880
  • 25 10k at 10000 Feet, 5k/10k, Eagle Bahn Gondola at Eagles Nest, Vail, Colorado, 9:00 a.m., 970.479.2280
  • 25 Marys Loop & Kokopelli Classic, 8M/16M, Marys Loop Trailhead, Loma, Colorado, 7:30 a.m., 970.260.2379
  • 26 Rogers Grove Half Marathon, 10k/Half, Rogers Grove Park, Longmont, Colorado, 7:30 a.m., 858.775.7104
  • 26 Erie Half Marathon, 5k/Half, Reliance Park, Erie, Colorado, 8:30 a.m., 720.722.4226
  • 26 Full Moon run, various distances, Red Rock Canyon Open Space, Colorado Springs, Colorado, 7:00 p.m., 719.599.3583

September 2018

  • 1 Grand Traverse Mountain Run, 40M, Elk Avenue, Crested Butte, Colorado, 6:30 a.m., 970.497.9600
  • 1 Creede Mountain Run, 2M/12M/22M, Main Street, Creede, Colorado, 9:00 a.m., 719.850.8715
  • 1 Spur of the Moment Run, 5k, Jr Legion Park, River Trailhead, Grand Junction, Colorado, 8:30 a.m., 970.270.0774
  • 1 HRCA Wildcat Mountain Trail Run, 10k/10M, Rocky Heights Middle School, Highlands Ranch, Colorado, 7:00 a.m., 303.791.2500
  • 1Nielson Challenge, 2M, North Monument Valley Park, Colorado Springs, Colorado, 8:00 a.m., 719.534.0534
  • 2 10k Meters at 10000 Feet, 5k/10k, Old Rabbit Ears Pass Road, Steamboat Springs, Colorado, 10:00 a.m., 970.879.0880
  • 2 Cheap 5k, Flea Market, Colorado Springs, Colorado, 8:30 a.m., 719.362.3306
  • 3 Labor Day Mini Marathon, 5k/10k/Half, Salisbury Park, Parker, Colorado, 7:00 a.m., 720.985.9047
  • 3 Highlands Ranch Half Marathon, Daniels Park to Town Center, Highlands Ranch, Colorado, 7:00 a.m., 888.668.1152
  • 3 Fortitude 10k, CSU, Fort Collins, Colorado, 8:00 a.m., 303.444.7223
  • 3 American Discovery Trail Runs, Half/Marathon, Downtown/America the Beautiful Park, Colorado Springs, Colorado, 6:30 a.m., 719.635.3833
  • 8 Mountain RATS Trail Races, Half/Marathon, Color Coffee Roasters, Eagle, Colorado, 7:30 a.m., 303.249.1112

  • 8 Shane Shatto WYO 8 Memorial Run, 5k, Recreation Center, Douglas, Wyoming, 8:00 a.m., 307.358.2122.2026

  • 8 Imogene Pass Run, 17.1M, Main Street, Ouray, Colorado, 970.728.0251
  • 8 Denver Trail Half Marathon, 10k/Half, Cherry Creek Reservoir, Denver, Colorado, 858.775.7104
  • 8 The Denver 5k, Sloans Lake, Denver, Colorado, 9:30 a.m., 888.803.4226
  • 8 Arvada Harvest Half Marathon, 5k/10k/Half, McIlvoy Park, Arvada, Colorado, 8:00 a.m., 720.365.2935
  • 8 Spirit of the Valley 5k, St Matthews Episcopal Church, Grand Junction, Colorado, 8:30 a.m., 970.242.3293
  • 8 Race for the Byway, 5k, Pioneer Park, Florence, Colorado, 6:00 p.m., 719.689.2461
  • 8 Rocky Mountain Brew Run, 5k, Station 26 Brewing, Denver, Colorado, 11:00 a.m., 303.776.1914
  • 9 Run for the H, 5k, Adams County Fairgrounds, Brighton, Colorado, 9:00 a.m., 303.637.8107

  • 9 RMRR Platte River Trailhead Park Run, 8M, Trailhead Park, Denver, Colorado, 8:00 a.m., 303.871.8366
  • 9 Step4Life, 5k/10k, Adams County Fairground, Brighton, Colorado, 9:00 a.m., 720.770.7297
  • 9 Race for the Cure, 5k, Garden of the Gods Park, Colorado Springs, Colorado, 7:50 a.m., 719.632.8887
  • 14 Run Rabbit Run, 50M/100M, Ski Area, Steamboat Springs, Colorado, 8:00 a.m., 970.879.0880
  • 15 Dawn to Dusk 12hr Relay, 14M, Aldefer Three Sisters Park, Evergreen, Colorado, 7:00 a.m., 720.880.1226
  • 15 Prairie Dog Races, 5k/10k/Half, Westminster Promenade, Westminster, Colorado, 8:00 a.m., 720.722.4226
  • 15 CMRA South Seven Run, 5k, Bluffs Regional Park, Lone Tree, Colorado, 9:00 a.m., 303.912.6401
  • 15 Crested Butte Ultra, 55k/105k, Crested Butte Mountain, Crested Butte, Colorado, 4:00 a.m., 719.429.9501
  • 15 Pawtoberfest, 5k, Norris Penrose Event Center, Colorado Springs, Colorado, 10:00 a.m., 719.473.1741
  • 15 Rocky Mountain Brew Run, 5k, Jagged Mountain Brewing, Denver, Colorado, 11:00 a.m., 303.776.1914
  • 16 Equinox Half Marathon & 5M, Poudre Canyon, Fort Collins, Colorado, 8:00 a.m., 970.556.3279
  • 16 US Marine Corps Memorial Runs, 5k/10k, Memorial Park, Arvada, Colorado, 9:00 a.m., 720.365.2935
  • 16 Be Ovary Aware 5k Run, America the Beautiful Park, Colorado Springs, Colorado, 8:30 a.m., 719.233.4114
  • 16 Pony Express Run, 15M, Rampart Range Rd & Rainbow Gulch Trail, Woodland Park, Colorado, 8:00 a.m., 719.598.2953
  • 16 Strides for Epilepsy, 5k, Bear Creek Park East, Colorado Springs, Colorado, 9:30 a.m., 303.377.9774
  • 22 Snow Mountain Ranch Trail Races, 5k/10k/Half, YMCA of the Rockies Nordic Center, Granby, Colorado, 8:00 a.m., 858.775.7104
  • 22 Emerald Mountain Trail Run, 12k, Howelsen Hill, Steamboat Springs, Colorado, 9:00 a.m., 970.879.0880
  • 22 Road Cliff XC Chaos, 6M/12M, Hubbard Mesa Open Area, Rifle, Colorado, 8:30 a.m., 970.744.4450
  • 22 HRCA Oktoberfest 5k, 5k/100Y, Town Center, Highlands Ranch, Colorado, 8:30 a.m., 303.791.2500
  • 22 Oktoberfest 8k, Skysox Stadium, Colorado Springs, Colorado, 9:00 a.m., 719.635.8803
  • 23 XTERRA Golden Gate, 7k/20k, Golden Gate State Park, Golden, Colorado, 9:00 a.m., 719.505.8717

  • 23 Race Against Suicide, 3k/5k/10k, El Pomar Youth Sports Park, Colorado Springs, Colorado, 10:30 a.m., 719.573.7447
  • 24 Full Moon Run, various distances, Beckers & El Paso, Manitou Springs, Colorado, 7:00 p.m., 719.599.3583
  • 29 Monument Marathon, Half Marathon, and 5k, Five Rocks Amphitheatre, Gering, Nebraska, 8:00 a.m., 308.765.0524

  • 29 Haxtun Corn Festival 5k, Main Street, Haxtun, Colorado, 8:00 a.m., 970.774.6104

  • 29 Bear Chase Races, 10k/50k/100k, Bear Creek Lake Park, Lakewood, Colorado, 6:30 a.m., 303.320 3343
  • 29 Colorado Springs Marathon, 5k/Half, Acacia Park, Colorado Springs, Colorado, 7:00 a.m., 801.455.9623
  • 30 PPRR Fall Series #1, 3.5M, North Monument Valley Park, Colorado Springs, Colorado, 10:30 a.m., 719.648.9996

October 2018

November 2018


  • 3 Moab Trail Marathon, Half Marathon, and Adventure 5k, Kane Creek Trailhead, Moab, Utah, 8:00 a.m., 970.389.4838

  • 3 Rim Rock Marathon, Colorado National Monument, Fruita, Colorado, 8:00 a.m., 970.248.1469
  • 3 HRCA Backcountry Wilderness Run, Half Marathon, Paint Brush Park, Highlands Ranch, Colorado, 8:30 a.m., 303.791.2500
  • 3 Nielson Challenge, 2M, North Monument Valley Park, Colorado Springs, Colorado, 8:00 a.m., 719.534.0534
  • 4 Moab Trail Half Marathon, Kane Creek Trailhead, Moab, Utah, 8:00 a.m., 970.389.4838

  • 4 RMRR Prairie Gateway Races, 5k/9M, Prairie Gateway, Commerce City, Colorado, 9:00 a.m., 303.871.8366
  • 10 CMRA HR Veterans Run, 6.6M, Hildegrand Ranch Park, Littleton, Colorado, 10:00 a.m., 303.781.1738
  • 10 Pizza Pie Run, 1M/5k/10k, City Park, Denver, 10:00 a.m., 720.365.2935
  • 10 Panda Waddle, 5k, Longs Family Park, Grand Junction, Colorado, 10:00 a.m., 970.250.0786
  • 10 Colorado Springs Girls on the Run, 5k, America the Beautiful Park, Colorado Springs, Colorado, 10:00 a.m., 720.879.2354
  • 11 Silverton Ultra Marathon, 55k, Silverton, Colorado, 6:00 p.m., 303.990.9049
  • 11 PPRR Fall Series #4, 6.5M, Palmer Park Maizeland Entrance, Colorado Springs, Colorado, 10:30 a.m., 719.590.7086
  • 17 Arvada Turkey Trek, 2k/5k/10k, Long Lakes Sports Complex, Arvada, Colorado, 8:30 a.m., 970.449.2051
  • 17 CS Turkey Trot Predict, 5k, Memorial Park, Colorado Springs, Colorado, 10:00 a.m., 719.598.2953
  • 17 Denver Pumpkin Pie Run, 5k/10k, City Park, Denver, Colorado, 9:00 a.m., 720.985.9047
  • 17 Grand Junction Tom Turkey Prediction Run, 6M, B Rd, Grand Junction, Colorado, 10:30 a.m., 970.270.0774
  • 22 Broomfield Turkey Day Run, 5k/10k, Broomfield Commons Open Space, Broomfield, Colorado, 9:00 a.m., 720.722.4226
  • 22 Colorado Springs Turkey Trot, 5k, Briargate YMCA, Colorado Springs, Colorado, 9:00 a.m., 719.495.5107
  • 22 Durango Turkey Trot, 1M/5M, Fort Lewis College, Durango, Colorado, 10:00 a.m., 970.903.6774
  • 22 Erie Pilgrimage Run, 2M/4M, Library, Erie, Colorado, 1.855.RECESS1
  • 22 Evergreen Echo Turkey Trot, 5k, Christian Church, Evergreen, Colorado, 9:00 a.m., 303.670.7295
  • 22 Parker Turkey Day 5k, Cherry Creek Trail, Parker, Colorado, 8:00 a.m., 303.805.3278

November 2018

  • 1 Chasing Santa Run, 5k, America the Beautiful Park, Colorado Springs, Colorado, 9:00 a.m., 719.306.2330
  • 1 ColderBolder, 5k, CU Campus, Boulder, Colorado, 9:50 a.m., 303.444.7223
  • 2 RMRR Wash Park 4.5M, Washington Park, Denver, Colorado, 9:00 a.m., 303.871.8366
  • 8 Strider 5M Time Trial, 5M, Albertsons, Grand Junction, Colorado, 11:00 a.m., 970.270.0774
  • 8 CMRA Sand Creek Run, 5M, Bluff Nature Center, Denver, Colorado, 10:00 a.m., 720.480.2370
  • 15 Santa Cause Run, 1k/5k, Las Colonais Park Confluence, Grand Junction, Colorado, 9:00 a.m., 970.254.3866
  • 16 Scramblin Scrooge, 5k/10k, City Park, Denver, Colorado, 8:00 a.m., 720.365.2935
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