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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


November 2017


  • 4 Moab Trail Races, Kids/5k/Half/Marathon, Kane Creek Trail Head, Moab, Utah, 9:00 a.m., 970.389.4838

  • 4 HRCA Backcountry Wilderness Run, Half Marathon, Paint Brush Park, Highlands Ranch, Colorado, 8:30 a.m., 303.791.2500
  • 4 Nielson Challenge, 2M, North Monument Valley Park, Colorado Springs, Colorado, 8:00 a.m., 719.534.0534
  • 4 Rim Rock Marathon, Colorado National Monument to James Robb State Park, Fruita, Colorado, 8:00 a.m., 970.248.1469
  • 5 Moab Trail Half Marathon, Kane Creek Trail Head, Moab, Utah, 9:00 a.m., 970.389.4838

  • 5 RMRR Prairie Gateway Run, 5k/9M, Prairie Gateway, Commerce City, Colorado, 9:00 a.m., 303.871.8366
  • 10 Celebrate our Vets 5k, Monument Valley Park, Colorado Springs, Colorado, 8:30 a.m., 719.306.2330
  • 11 CMRA HR Veterans Run, 6.6M, Hildebrand Ranch Park, Littleton, Colorado, 10:00 a.m., 303.781.1738
  • 11 Frisco Girls on the Run, 5k, Summit Middle School, Frisco, Colorado, 11:00 a.m., 970.668.9133
  • 11 Panda Waddle, 5k, Longs Family Park, Grand Junction, Colorado, 10:00 a.m., 970.250.0786
  • 11 Thanks4Giving Race, 3M, Hawkstone Drive, Eaton, Colorado, 10:00 a.m., 970.454.3996
  • 11 Frisco Girls on the Run, 5k, Summit Middle School, Frisco, Colorado, 11:00 a.m., 970.668.9133
  • 11 Bell Ringer Run, 5k, Thompson Brewery, Loveland, Colorado, 2:30 p.m., 970.215.9642
  • 12 The Great Candy Run, 5k, Washington Park, Denver, Colorado, 10:00 a.m., 303.694.2202
  • 18 Denver Run, 5k/10k, City Park, Denver, Colorado, 9:00 a.m., 720.985.9047
  • 18 Arvada Turkey Trek, 10k, Long Lakes Sports Complex, Arvada, Colorado, 8:30 a.m., 970.449.2051
  • 18 Canon City Turkey Trot, 5k, Pathfinder Park, Florence, Colorado, 10:00 a.m., 719.275.1578
  • 18 CS Turkey Trot Predict, 5k, Memorial Park, Colorado Springs, Colorado, 10:00 a.m., 719.598.2953
  • 18 Grand Junction Tom Turkey Prediction Run, 6M, B Rd, Grand Junction, Colorado, 10:30 a.m., 970.270.0774
  • 18 Brighton Turkey Trot, 5k, Recreation Center, Brighton, Colorado, 8:30 a.m., 303.655.2000
  • 18 Bulldog Run, 5k/10k/Half, Modican & Animas Streets, Trinidad, Colorado, 8:00 a.m., 719.680.0171
  • 23 Basalt Turkey Trot, 5k, Elementary School, Basalt, Colorado, 10:45 a.m., 970.618.8484
  • 23 Bailey Turkey Trot, 1M/5k, Boera Park, Bailey, Colorado, 9:30 a.m., 303.838.4642
  • 23 Broomfield Turkey Day Run, 5k/10k, Broomfield Commons Open Space, Broomfield, Colorado, 9:00 a.m., 720.722.4226
  • 23 Castle Rock Turkey Rock Trot, 5k, Douglas County Events Center, Castle Rock, Colorado, 9:30 a.m., 303.688.1114
  • 23 Colorado Springs YMCA Briargate Turkey Trot, 5k, Briargate YMCA, Colorado Springs, Colorado, 9:00 a.m., 719.495.5107
  • 23 Denver Mile High United Way Turkey Trot, Washington Park, Denver, Colorado, 10:15 a.m., 303.433.8383
  • 23 Denver Harvesting Hope Run, 5k, Central Park, Denver, Colorado, 10:15 a.m., 303.885.7078
  • 23 Durango Turkey Trot, 1M/5M, Fort Lewis College, Durango, Colorado, 10:00 a.m., 970.903.6774
  • 23 Erie Pilgrimage Run, 2M, Library, Erie, Colorado, 1.855.RECESS1
  • 23 Estes Park Turkey Trot, 5k, YMCA of the Rockies, Estes Park, Colorado, 8:00 a.m., 888.613.9622
  • 23 Evergreen Echo Turkey Trot, 5k, Evergreen Christian Church, Evergreen, Colorado, 9:00 a.m., 303.670.7295
  • 23 Fort Collins Thanksgiving Day Run, Mountain College, Fort Collins, Colorado, 9:00 a.m., 970.482.0551
  • 23 Frisco Turkey Day 5k, Old Community Center, Frisco, Colorado, 9:30 a.m., 970.668.9133
  • 23 Glenwood Springs Turkey Day 5k, Community Center, Glenwood Springs, Colorado, 10:00 a.m., 970.309.4795
  • 23 Grand Junction Turkey Trot, 5k, Two Rivers Convention Center, Grand Junction, Colorado, 9:30 a.m., 970.560.4616
  • 23 Greeley NCMC Turkey Trot, 5k, Northern Colorado Medical Center, Greeley, Colorado, 970.350.6204
  • 23 Highlands Ranch Turkey Day 5k, Shad Stadium at Redstone Park, Highlands Ranch, Colorado, 9:00 a.m., 303.791.3500
  • 23 Littleton Gobble Wobble, 5k, Clement Park, Littleton, Colorado, 8:30 a.m., 303.396.7300
  • 23 Louisville Turkey Trot, 5k, Public Library, Louisville, Colorado, 9:00 a.m., 602.312.4499
  • 23 Loveland Turkey Trot, 5k, McKee Conference Center, Loveland, Colorado, 8:30 a.m., 970.820.4011
  • 23 Montrose Turkey Trot, 2M/4.2M, Oak Grove School, Montrose, Colorado, 9:00 a.m., 970.316.1988
  • 23 Parker Turkey Day 5k, Cherry Creek Trail, Parker, Colorado, 8:00 a.m., 303.805.3278
  • 23 Pueblo Turkey Trot, 5k, YMCA, Pueblo, Colorado, 9:00 a.m., 719.543.5151 x213
  • 23 Rifle Turkey Trot, 5k, Deerfield Park, Rifle, Colorado, 9:00 a.m., 630-890-0726
  • 23 Steamboat Springs Turkey Trot, 4.6M, Steamboat High School, Steamboat Springs, Colorado, 9:00 a.m., 970.871.3699
  • 23 Sterling High Plains Turkey Trot, 5k, Peace Lutheran Church, Sterling, Colorado, 8:30 a.m., 970.521.3226
  • 23 Vail Turkey for a Cause, 5k, Vail Pool, Vail, Colorado, 9:30 a.m., 970.777.2015
  • 23 Windsor Turkey Trot, 5k/5M, Pelican Lakes, Windsor, Colorado, 9:00 a.m., 970.217.6751
  • 25 Longmont Leftover Turkey Trot, 5k, Rogers Grove Park, Longmont, Colorado, 10:00 a.m., 850.764.2746
  • 26 Be a Tool Elf Run, 5k, The Arch, Golden, Colorado, 8:00 a.m., 303.384.8000

December 2017


  • 2 Rock Canyon Half, Pueblo City Park, Pueblo, Colorado, 9:00 a.m.

  • 2 CMRA Sand Creek Run, 5M, Bluff Nature Center, Denver, Colorado, 10:00 a.m., 720.480.2370
  • 2 Nielson Challenge, 2M, North Monument Valley Park, Colorado Springs, Colorado, 8:00 a.m., 719.534.0534
  • 2 Winterfest 5k, Festival Park, Castle Rock, Colorado, 11:00 a.m., 303.588.1452
  • 2 Chasing Santa Run, 5k, America the Beautiful Park, Colorado Springs, Colorado, 9:00 a.m., 719.306.2330
  • 2 ColderBolder, 5k, CU Campus, Boulder, Colorado, 9:50 a.m., 303.444.7223
  • 2 Winter Fest Run, 5k, Recreation Center, Fort Lupton, Colorado, 3:30 p.m., 303.857.4200
  • 3 RMRR Wash Park Run, 4.5M, Washington Park, Denver, Colorado, 9:00 a.m., 303.871.8366
  • 3 Jingle Bell Run, 5k, The Ranch Events Complex, Loveland, Colorado, 8:00 a.m., 720.644.4397
  • 3 Rudolf Ramble, 5k, City Park, Denver, Colorado, 10:00 a.m., 303.694.2202
  • 8 Aspen Summit for Life, 2.5M, Base of Aspen Mountain, Aspen, Colorado, 5:00 p.m., 970.274.8111
  • 9 Chilly Cheeks 4 Mile Run #1, Cherry Creek State Park, Hobie Hill Lot, Denver, Colorado, 10:00 a.m., 303.642.7917

  • 9 Five Mile Time Trial, 5M, River Trail on the Redlands, Grand Junction, Colorado, 11:00 a.m., 970.270.0774
  • 9 Sweaty Sweater Run, 5k, Horsetooth Reservoir, Fort Collins, Colorado, 10:00 a.m., 970.556.3279
  • 9 Toy Drop Race, 10k, Police Department, Loveland, Colorado, 9:00 a.m., 970.215.9642
  • 9 Ugly Christmas Sweater Run, 5k, Beth El Mennonite Church, Colorado Springs, Colorado, 12:00 p.m., 719.638.0808
  • 9 Banning Lewis Ranch Santa sprint, 5k, Banning Lewis Ranch, Colorado Springs, Colorado, 10:00 a.m., 719.465.1601
  • 9 Sawmill Trail Runs, 27k/55k, White Ranch Open Space, Lower Lot, Golden, Colorado, 7:00 a.m., 720.624.9237
  • 16 Santa Cause Run, 1k/5k, Las Colonais, Park Confluence Shelter, Grand Junction, Colorado, 9:00 a.m., 970.254.3866
  • 17 Superior Stocking Run, 5k, Purple Park, Superior, Colorado, 9:00 a.m., 303.642.7917

  • 23 Christmas Carol Classic, 1k/5k, City Park, Denver, Colorado, 9:00 a.m., 720.365.2935
  • 30 Raptor Resolution Run, 5M, Nature & Raptor Center, Pueblo, Colorado, 9:00 a.m., 719.549.2414
  • 31 Resolution Run, 5k, CSU Clark Building, Fort Collins, Colorado, 6:00 p.m., 970.221.5075
  • 31 Resolution Run, 5k, Washington Park, Denver, Colorado, 5:00 p.m., 877.228.4881
  • 31 New Years Eve Rockin Run, 5k, Douglas County Event Center, Castle Rock, Colorado, 10:00 a.m., 303.588.1452

January 2018

  • 1 Full Moon Run, various distances, Beckers & El Paso, Manitou Springs, Colorado, 7:00 p.m., 719.599.3583
  • 1 Rescue Run, 5k/10k, Palmer Park, Colorado Springs, Colorado, 10:00 a.m., 719.351.0045
  • 1 Salida New Years 5k, Scout Hut (E Sacket Ave), Salida, Colorado, 10:00 a.m., 719.539.6738
  • 1 Resolute Runner 5k, Memorial Park, Arvada, Colorado, 10:00 a.m., 720.722.4226
  • 3 PPRR Winter Series #1 – Hells Hills, 3.3M/7M, Cheyenne Mountain State Park, Colorado Springs, Colorado, 10:00 a.m., 719.338.8639
  • 6 Nielson Challenge, 2M, North Monument Valley Park, Colorado Springs, Colorado, 8:00 a.m., 719.534.0534
  • 6 6Pack Winter Series #1, 1M/5k, Promenade Terrace, Westminster, Colorado, 9:00 a.m., 720.722.4226
  • 6 The Resolve, 5k/10k, City Park, Denver, Colorado, 9:00 a.m., 720.365.2935
  • 7 HR 6Pack Series #1, 1M/5k, Heritage Regional Park, Highlands Ranch, Colorado, 9:00 a.m., 720.722.4226
  • 13 Chilly Cheeks 4 Mile Run #2, Cherry Creek State Park, Hobie Hill Lot, Denver, Colorado, 10:00 a.m., 303.642.7917

  • 20 Frostys Frozen Five & Ten, 5k/10k,, Hudson Gardens, Littleton, Colorado, 720.985.9047
  • 20 Appleton Freezer, 4M, Appleton Elementary School, Grand Junction, Colorado, 11:00 a.m., 970.254.6400
  • 20 Polar Bear Run and Plunge, 5k, Horsetooth Reservoir, Fort Collins, Colorado, 10:00 a.m., 970.556.3279
  • 20 6Pack Winter Series #2, 2M/5k, Promenade Terrace, Westminster, Colorado, 9:00 a.m., 720.722.4226
  • 21 Polar Bear 5k, Washington Park, Denver, Colorado, 10:00 a.m., 303.694.2202
  • 21 HR 6Pack Series #2, 2M/5k, Heritage Regional Park, Highlands Ranch, Colorado, 9:00 a.m., 720.722.4226
  • 27 PPRR Winter Series #2 Over the River, 4M/8M, Norris Penrose Event Center, Colorado Springs, Colorado, 10:00 a.m., 719.338.8639
  • 27 Sourdough Snowshoe Race, 11.4M/30k, South Sourdough Trailhead, Nederland, Colorado, 9:00 a.m., 303.345.4785
  • 28 Yeti Chase 5k/10k, Bear Creek Lake Park, Morrison, Colorado, 10:00 a.m., 303.642.7917

  • 31 Full Moon Run, various distances, Beckers & El Paso, Manitou Springs, Colorado, 7:00 p.m., 719.599.3583

February 2018

  • 3 Nielson Challenge, 2M, North Monument Valley Park, Colorado Springs, Colorado, 8:00 a.m., 719.534.0534
  • 3 6Pack Winter Series #3, 5k, Promenade Terrace, Westminster, Colorado, 9:00 a.m., 720.722.4226
  • 4 HR 6Pack Series #3, 5k, Heritage Regional Park, Highlands Ranch, Colorado, 9:00 a.m., 720.722.4226
  • 4 Super Bowl 5k, Washington Park, Denver, Colorado, 10:00 a.m., 303.694.2202
  • 4 Super Half Marathon & 5k, Plaza of the Rockies, Colorado Springs, Colorado, 10:00 a.m., 719.598.2953
  • 10 Sweetheart Run, 5k/10k, Community Center, Fruita, Colorado, 10:00 a.m., 970.858.0360
  • 10 PPRR Winter Series #3, 5M/10M, El Pomar Youth Sports Park, Colorado Springs, Colorado, 10:00 a.m., 719.338.8639
  • 10 Catch Me if you Can, 5k, Anheuser Busch, Fort Collins, Colorado, 9:00 a.m., 970.556.3279
  • 10 Heart Throb 5k, Sandstone Park, Longmont, Colorado, 10:00 a.m., 720.722.4226
  • 10 Le Cours de la Amour, 5k/10k, City Park, Denver, Colorado, 9:00 a.m., 720.365.2935
  • 10 Sweetheart Stroll, 1.5M/5k, Community Build Lot, Lamar, Colorado, 10:00 a.m., 719.336.4375
  • 11 Valentines Day 5k, Washington Park, Denver, Colorado, 10:00 a.m., 303.694.2202
  • 17 Valentines Day Massacre Prediction Run, 3M, Bottom of Roosevale Road, Grand Junction, Colorado, 10:00 a.m., 970.589.6180
  • 18 Ralston Creek Half Marathon & 5k, 64th & Fig St, Arvada, Colorado, 10:00 a.m., 303.642.7917

  • 24 Chilly Cheeks 4 Mile Run #3, Cherry Creek State Park, Hobie Hill Lot, Denver, Colorado, 10:00 a.m., 303.642.7917

  • 24 PPRR Winter Series #4 Valley of the Dogs, 10k/20k, Wolford Elementary School, Black Forest, Colorado, 10:00 a.m., 719.338.8639
  • 25 Pueblo Marathon & Half Marathon, North Marina, Lake Pueblo State Park, Pueblo, Colorado, 10:00 a.m., 719.429.9501

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
  • 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
  • 10 Lucky Charm Run, 1M/5k/10k, City Park, Denver, Colorado, 8:00 a.m., 720.365.2935
  • 11 Runnin of the Green, 7k, 17th & Wazee, Denver, Colorado, 10:15 a.m., 303.322.9342
  • 17 Erin Go Braugh, 7.77k, Westminster Promenade, Westminster, Colorado, 9:00 a.m., 720.722.4226
  • 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
  • 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 Hoppin Half, 5k/10k, Central Park, Denver, Colorado, 9:00 a.m., 720.365.2935

April 2018

May 2018

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
  • 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
  • 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
  • 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 Elk Meadow Trail Race, 5k/10k, Buchanan Park Recreation Center, Evergreen, Colorado, 8:00 a.m., 720.880.1000
  • 9 Runoff Runoff, 6k/Half/Marathon, Ball Park, Creede, Colorado, 8:00 a.m., 719.589.2230
  • 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
  • 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
  • 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 Fathers Day Run, 5k/10k/Half, Central Park, Denver, Colorado, 8:00 a.m., 720.365.2935
  • 17 Fathers Day Run, 5k/10k, Apex Center, Arvada, Colorado, 8:00 a.m., 720.722.4226
  • 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
  • 24 Run the Ridge, 5k, The Ridge at Castle Pines, Castle Pines, Colorado, 8:00 a.m., 303.717.2920

  • 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

July 2018


  • 4 Georgetown Tom Hayden Memorial 4th Run, 5k, Strausse Park, Georgetown, Colorado, 8:00 a.m., 303.679.2426

  • 4 Fort Collins Firecracker 5k, City Park, Fort Collins, Colorado, 7:30 a.m., 970.556.3279
  • 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
  • 7 Evergreen Mountain Trail Run, 15k, Alderfer Three Sisters Park, Evergreen, Colorado, 8:00 a.m., 720.880.1226
  • 7 Silverheels Endurance Run, 100M, Cohen Park, Fairplay, Colorado, 4:00 a.m., 720.624.9237
  • 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
  • 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
  • 14 Grand Lake Buffalo Stampede, 5k, Park Avenue (behind Town Park), Grand Lake, Colorado, 8:30 a.m., 970.627.3402 x202

  • 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
  • 15 Mountain Running Series, 5k/10k/Half/50k, Copper Mountain, Colorado, 8:00 a.m., 303.877.1379
  • 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
  • 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
  • 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

August 2018

  • 2 Stroke & Stride 5k Run, Boulder Reservoir, Boulder, Colorado, 6:00 p.m., 303.408.1195
  • 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
  • 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
  • 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
  • 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 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
  • 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
  • 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
  • 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

September 2018

October 2018

November 2018

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