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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


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
  • 2Run for Their Lives, 5k, Stoney Ridge Pavillon, Silt, Colorado, 8:30 a.m., 970.618.7098
  • 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
  • 3Run to Fight Lymphedema, 5k, Sloans Lake Park, Denver, Colorado, 9:00 a.m., 516.625.9675
  • 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
  • 13Summit Trail Running Series #1, 4k/7k, Morning Thunder/BOEC Trails, Breckenridge, Colorado, 6:00 p.m., 970.452.1734
  • 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
  • 16Run for the Sun 5k, Confluence SBC, Lafayette, Colorado, 7:30 a.m., 303.351.1038
  • 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., 609.226.0911
  • 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
  • 23Undy 5000, 5k, City Park, Denver, Colorado, 8:30 a.m., 303.419.6178
  • 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
  • 27Summit Trail Running Series #2, 5k/8k, French Gulch Trails, Breckenridge, Colorado, 6:00 p.m., 970.453.1734
  • 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
  • 30 Florence Fourth of July Fest Run, 5k, Pioneer Park, Florence, Colorado, 9:00 a.m., 719.784.4848 x226

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
  • 1 Erie Firecracker Run, 4k/4M, Community Center, Erie, Colorado, 8:00 a.m., 814.454.7191
  • 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 Buena Vista Independence Day Freedom Run, 5k, Downtown, Buena Vista, Colorado, 8:30 a.m, 719-395-6612
  • 4 Crested Butte Gothic to Crested Butte Run, 8.6M, Elk and 6th Street, Crested Butte, Colorado, 8:00 a.m., 970.349.7231
  • 4 Denver Liberty Run, 4M, Washington Park, Denver, Colorado, 8:30 a.m., 303.522.4387
  • 1 Erie Firecracker Run, 4k/4M, Community Center, Erie, Colorado, 8:00 a.m., 814.454.7191
  • 4Evergreen Freedom Run, 5k, Easton Soccer Fields, Evergreen, Colorado, 8:30 a.m., 720.333.8063
  • 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
  • 4Glenwood Springs Firecracker 4k, Two Rivers Park, Glenwood Springs, Colorado, 8:30 a.m., 970.918.1981
  • 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
  • 4 Loveland Liberty 5k, Grimm Brothers Brewhouse, Loveland, Colorado, 8:00 a.m., 970.219.9844
  • 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
  • 11Summit Trail Running Series #3, 4k/9k, Bakers Tank Trail, Breckenridge, Colorado, 6:00 p.m., 970.453.1734
  • 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
  • 14Mullet Run, 5k, National Western Complex, Denver, Colorado, 8:00 a.m., 303.901.2709
  • 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
  • 21Respect Life 5k, Roman Catholic Church, Littleton, Colorado, 8:00 a.m., 303.973.3969
  • 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
  • 25Summit Trail Running Series #4, 5k/14k, Horse Shoe Gulch Trails, Breckenridge, Colorado, 6:00 p.m., 970.453.1734
  • 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 Staunton State Park Run, 20k, Staunton State 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
  • 4Cheatin Woodchuck Chase, 2.3M/5M, Rifle Mountain Park, Rifle, Colorado, 8:10 a.m., 970.665.6570
  • 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
  • 8Summit Trail Running Series #5, 7k/11k, Flumes/Toms Baby Trails, Breckenridge, Colorado, 6:00 p.m., 970.453.1734
  • 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
  • 15Summit Trail Running Series #6, 8k/14k, Carter Park, Breckenridge, Colorado, 6:00 p.m., 970.453.1734
  • 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
  • 26 Run Superior 5k, One Superior Drive, Superior, Colorado, 8:00 a.m., 303.554.0789

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
  • 8Breckenridge Oktoberfest Trail Run, 5k, South Gondola Parking Lot, Breckenridge, Colorado, 10:00 a.m., 970.453.1734
  • 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 Run for the H, 5k, Adams County Fairgrounds, Brighton, Colorado, 9:00 a.m., 303.637.8107

  • 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

December 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
  • 8 Team USA Indoor Half Marathon, US Olympic Training Center, Colorado Springs, Colorado, 8:00 a.m., 719.866.4894
  • 9 Team USA Indoor Marathon, US Olympic Training Center, Colorado Springs, Colorado, 8:00 a.m., 719.866.4894
  • 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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