← All races
Upcoming running races in Colorado
260 running races are coming up in Colorado. Compare dates, distances and locations, then get ready with a personalized training plan.
260 upcoming races
September 2026
- Sep 15, 2026Leadville Trail 100 Run📍 Leadville, CO100 mi
- Sep 18, 2026Run Rabbit Run 100📍 Steamboat Springs, CO50 mi · 100 mi
- Sep 18, 2026Severance Glow 5K Run or Walk📍 Severance, CO3.1 mi
- Sep 18, 2026Run Rabbit Run📍 Steamboat Springs, CO100 mi · 50 mi
- Sep 19, 2026Ouray Mountain Trail Run📍 Ouray, CO13 mi
- Sep 19, 2026All Hands on Deck The Pirates 5K📍 Colorado Springs, CO3.1 mi
- Sep 19, 2026All-Out Fall Fest📍 Westminster, CO13.1 mi · 6.2 mi · 3.1 mi
- Sep 19, 2026Autumn Run Half Marathon, 10K, 5K, & Kids Fun Run📍 Buena Vista, CO13.1 mi · 6.2 mi · 3.1 mi · 0.6 mi
- Sep 19, 2026Beulah Challenge📍 Beulah, CO6.2 mi · 3.1 mi
- Sep 19, 2026Champions for Children 5K - Commerce City, CO📍 Commerce City, CO1 mi · 3.1 mi
- Sep 19, 2026ColorFest Color Run 5K📍 Pagosa Springs, CO3.1 mi
- Sep 19, 2026Denver: Walk With Autism and Resource Fair📍 Denver, CO3.1 mi
- Sep 19, 2026Fit2Run X On Hispanic Heritage Month Celebration Puerto Rico📍 United States, CO3.1 mi
- Sep 19, 2026Gummball 5K📍 Brighton, CO3.1 mi
- Sep 19, 2026Lederhosen Race📍 Red Feather Lakes, CO3.6 mi
- Sep 19, 2026Miles 4 Madison 5K & 1K📍 Littleton, CO3.1 mi · 0.6 mi
- Sep 19, 2026Montbello ALIVE! 5K Run and One Mile Walk📍 Denver, CO3.1 mi
- Sep 19, 2026Pikes Peak Marathon + Ascent📍 Manitou Springs, CO26.2 mi · 13.3 mi
- Sep 19, 2026Run The Rockies📍 Copper Mountain, CO13 mi · 6.2 mi
- Sep 19, 2026Stride for Hope 5K and Kids Fun Run📍 Delta, CO1 mi · 3.1 mi
- Sep 19, 2026The Milk Run and Stroll📍 Westminster, CO3.1 mi
- Sep 19, 2026Wellington STAR Foundation 5K 10K📍 Wellington, CO6.2 mi · 3.1 mi
- Sep 20, 2026Chile & Frijole Hot to Trot 5K & 10K📍 Pueblo, CO6.2 mi · 3.1 mi
- Sep 20, 2026Connection 5k📍 Carbondale, CO3.1 mi
- Sep 20, 2026Fall Equinox📍 Fort Collins, CO13 mi · 5 mi
- Sep 20, 2026Expo Park XC Runs📍 Aurora, CO3.1 mi · 2.5 mi · 1.9 mi · 1.2 mi
- Sep 20, 2026Farmers 5000📍 Wheat Ridge, CO3.1 mi
- Sep 20, 2026Golden Gallop📍 Golden, CO6.2 mi · 3.1 mi
- Sep 25, 2026Red Feather Trail Jamboree📍 Red Feather Lakes, CO13 mi · 50 mi
- Sep 26, 2026Sangre de Cristo Ultras📍 Westcliffe, CO100 mi · 61 mi · 50 mi · 31 mi
- Sep 26, 2026Crested Butte Ultra📍 Crested Butte, CO22 mi · 34 mi · 50 mi
- Sep 26, 2026Deep Creek Trail 1/2 Marathon📍 Telluride, CO13 mi
- Sep 26, 2026Golden Leaf Half Marathon📍 Aspen, CO13 mi
- Sep 26, 2026Night Nation Run - Denver,CO📍 Commerce City, CO3.1 mi
- Sep 26, 2026Sangre de Cristo Trail Festival📍 Westcliffe, CO8 mi · 17 mi · 31 mi · 50 mi
- Sep 26, 2026West Line Winder - 50K & 30K📍 Buena Vista, CO19 mi · 31 mi
- Sep 26, 2026WILD Wahatoya Runs📍 La Veta, CO8 mi · 13 mi · 31 mi
- Sep 26, 202624 Hours of Palmer Lake📍 Palmer Lake, CO24 h
- Sep 26, 2026Angel Flight West - 5K Run for the Angels📍 Broomfield, CO3.1 mi
- Sep 26, 2026Bayfield Heritage Days 5K📍 Bayfield, CO3.1 mi
- Sep 26, 2026Black Canyon Triathlon📍 Montrose, CO22 km + 5 km
- Sep 26, 2026Oktoberfest Run 5K/10K/13.1 DENVER/AURORA📍 Centennial, CO13.1 mi · 6.2 mi · 3.1 mi · 1 mi
- Sep 26, 2026Estes Epic📍 Estes Park, CO31 mi · 15 mi
- Sep 26, 2026HRCA Oktoberfest 5K📍 Littleton, CO3.1 mi
- Sep 26, 2026Lisa Nelson’s Mustang Stampede 5K📍 Arvada, CO3.1 mi
- Sep 26, 2026Mesa County Search & Rescue 5K📍 Fruita, CO3.1 mi
- Sep 26, 2026Mountain Marmot📍 Durango, CO12 mi
- Sep 26, 2026Outlast Colorado Springs📍 Colorado Springs, CO18 mi
- Sep 26, 2026Parker Parks and Recreation So Long to Summer 5K/10K📍 Parker, CO6.2 mi · 3.1 mi
- Sep 26, 2026Run for Donuts 5K/10K/13.1 DENVER/AURORA📍 Centennial, CO13.1 mi · 6.2 mi · 3.1 mi · 1 mi
- Sep 26, 2026Run For Your Flapjacks 5K📍 Oak Creek, CO3.1 mi
- Sep 26, 2026Suicide Prevention Color Walk/Run📍 Center, CO3.1 mi
- Sep 26, 2026Tough Mudder Colorado📍 Fort Carson, CO9.3 mi · 3.1 mi
- Sep 27, 202614er Fest Running Races📍 Buena Vista, CO8.7 mi · 3.1 mi
- Sep 27, 2026Greenland Open Space Pack Burro Races📍 Palmer Lake, CO8 mi · 3 mi
- Sep 27, 2026Sawatch Ascent -50k📍 Nathrop, CO31 mi
- Sep 27, 2026Boulderthon Boulder Marathon📍 Boulder, CO26 mi · 13 mi · 6.2 mi · 3.1 mi
- Sep 27, 2026Flyin' Lion 5K - Littleton📍 Greenwood Village, CO3.1 mi
- Sep 27, 2026Joy & Justice 5k📍 Timnath, CO3.1 mi · 1 mi
- Sep 27, 2026Pat Mahan Memorial Foundation 5K📍 Wiggins, CO3.1 mi
- Sep 27, 2026Running for Children's Rights to Both Parents - 9 of 50 Half Marathons in 50 States📍 Boulder, CO13.1 mi
- Sep 27, 2026WWE Run With the Wolves📍 Arvada, CO3.1 mi · 0.6 mi
- Sep 27, 2026Boulderthon 📍 Boulder, CO26 mi · 13 mi · 6.2 mi · 3.1 mi
- Sep 28, 2026Center of the Nation Series - Day 1📍 Sterling, CO26 mi · 13 mi · 6.2 mi · 3.1 mi
October 2026
- Oct 3, 2026Emerald Mountain Trail Run📍 Steamboat Springs, CO4 mi · 8 mi
- Oct 3, 2026Sage Burner Trail Races📍 Gunnison, CO9.3 mi · 17 mi · 31 mi
- Oct 3, 2026The Bear Chase Race📍 Lakewood, CO3.1 mi · 6.2 mi · 13 mi · 31 mi
- Oct 3, 2026Above the Clouds Ultra📍 Woodland Park, CO6.2 mi · 31 mi
- Oct 3, 2026Big Waves Family 5K📍 Westminster, CO3.1 mi
- Oct 3, 2026Colorado Springs Marathon, Half, 5K, and KidsK📍 Colorado Springs, CO26.2 mi · 13.1 mi · 3.1 mi
- Oct 3, 2026Colorado Springs Marathon📍 Colorado Springs, CO26.2 mi · 13.1 mi · 3.1 mi · 0.6 mi
- Oct 3, 2026Family Soccer 5K Run📍 Aurora, CO3 mi
- Oct 3, 2026I Can 5k📍 Thornton, CO3.1 mi
- Oct 3, 2026Lafayette Music Fest -5K - 10K📍 Lafayette, CO6.2 mi · 3.1 mi
- Oct 3, 2026Outlast Denver📍 Littleton, CO6 h
- Oct 3, 2026Pink Ribbon Run - Fpo, AE📍 United States, CO3 mi
- Oct 3, 2026Rim to Rim Royal Gorge Races: 5K Road Run, Trail 8 Mile, Trail Half Marathon📍 Cañon City, CO13.1 mi · 8 mi · 3.1 mi · 0 mi
- Oct 3, 2026Spooky Sprint - Denver📍 Denver, CO13.1 mi · 6.2 mi · 3.1 mi · 1 mi
- Oct 3, 2026The FAMpoint5K📍 Grand Junction, CO500 m
- Oct 3, 2026Ethiopians 5K📍 Aurora, CO3.1 mi
- Oct 4, 2026Rubey Rescue Run📍 Aspen, CO3.1 mi
- Oct 4, 2026Hot Chocolate 15K/5K - Denver📍 Denver, CO9.3 mi · 6.2 mi · 3.1 mi
- Oct 4, 2026RMRR October Trophy Series📍 Aurora, CO8 mi · 3.1 mi
- Oct 4, 2026Windsor Marathon, Half Marathon, 10k, 5k & 1 Mile Run📍 Windsor, CO26.2 mi · 13.1 mi · 6.2 mi · 3.1 mi
- Oct 10, 2026Rocky's Backyard Ultra📍 Estes Park, CO
- Oct 10, 2026Breckenridge Road Marathon📍 Breckenridge, CO26 mi · 13 mi · 6.2 mi · 3.1 mi
- Oct 10, 2026Coffee Lovers Run 5K/10K/13.1 DENVER/AURORA📍 Centennial, CO13.1 mi · 6.2 mi · 3.1 mi · 1 mi
- Oct 10, 2026Dialysis Dash 5K📍 Grand Junction, CO3.1 mi
- Oct 10, 2026Faith & Blue 5K - Fort Morgan📍 Fort Morgan, CO3.1 mi
- Oct 10, 2026Footsteps for Families 5K Fun Run & Concert📍 Windsor, CO3.1 mi
- Oct 10, 2026Kipling Villas 5K📍 Littleton, CO3.1 mi
- Oct 10, 2026Manitou 5K📍 Manitou Springs, CO3.1 mi
- Oct 10, 2026The Cookie Dash Run 5K/10K/13.1 DENVER/AURORA📍 Centennial, CO13.1 mi · 6.2 mi · 3.1 mi · 1 mi
- Oct 11, 2026Kitty Beanz Cat 5k📍 Aurora, CO3.1 mi
- Oct 11, 2026The Moony Pride 5k📍 Fort Collins, CO3.1 mi
- Oct 11, 2026Westminster Half Marathon & 5K📍 Westminster, CO13.1 mi · 3.1 mi
- Oct 11, 2026Westy Half & 5k📍 Westminster, CO13.1 mi · 3.1 mi
- Oct 11, 2026Your Story Isn't Over 5K/10K/Kids 1-Mile📍 Littleton, CO6.2 mi · 3.1 mi
- Oct 11, 2026Run the Rocks Park and Amphitheatre📍 Morrison, CO3.1 mi
- Oct 17, 2026Blue Sky Trail Marathon & Half Marathon📍 Fort Collins, CO14 mi · 27 mi
- Oct 17, 2026Indian Creek Trail Runs📍 Sedaila, CO5.5 mi · 15 mi · 35 mi · 54 mi
- Oct 17, 2026The Great Trailhead Foot Race 10 Miler and 5k📍 Lakewood, CO5 mi · 10 mi
- Oct 17, 2026A2A Hero Run/Walk 5K📍 Pueblo, CO3 mi
- Oct 17, 2026Chili Chase📍 Durango, CO6.5 mi
- Oct 17, 2026Living Water 5K and Family Fun Run📍 Denver, CO3.2 mi
- Oct 17, 2026Longmonster Dash 5k📍 Longmont, CO3.1 mi
- Oct 17, 2026Running Scared 5K/13K - Denver📍 Littleton, CO11 mi · 3.1 mi · 8.1 mi
- Oct 17, 2026The Great Pumpkin Haul📍 Fruita, CO2 mi
- Oct 18, 2026Carrera 5k de la Albizu por la Salud Mental: Bienestar para Todos📍 United States, CO3.1 mi
- Oct 18, 2026Halloween Hustle for Charity📍 Glenwood Springs, CO0.9 mi · 3.4 mi
- Oct 18, 2026The Palmer Lake .5K (Yes "Point" 5)📍 Palmer Lake, CO0.3 mi
- Oct 18, 2026Running Scared 5K/13K - Colorado Springs📍 Colorado Springs, CO3.1 mi · 11 mi · 8.1 mi
- Oct 19, 2026Blue Sky Trail Marathon📍 Fort Collins, CO27 mi · 13 mi
- Oct 24, 2026Bridge Burner Ultra📍 Cañon City, CO6.2 mi · 22 mi · 31 mi · 35 mi
- Oct 24, 2026Apex Foundation Trick or Trot 5K & Kids' Halloween Hunt📍 Arvada, CO3.1 mi · 1 mi
- Oct 24, 2026Hoofin' It Through the Hollows 5K📍 Centennial, CO3.1 mi
- Oct 24, 2026YMCA of Pueblo Spooky Sprint 5K📍 Pueblo, CO3.1 mi
- Oct 24, 2026Zedikiah Scholarship 5K📍 Denver, CO3.1 mi
- Oct 24, 2026McGraw Memorial Park "Quick Draw @ McGraw" 2 Mile Trail Race📍 Bailey, CO2 mi
- Oct 25, 2026Ghosts and Goblins - Denver📍 Denver, CO6.2 mi · 3.1 mi
- Oct 31, 2026Halloween Fun 5k📍 Steamboat Springs, CO3.1 mi
- Oct 31, 2026Halloween Trick or Trot Run 5K/10K/13.1 DENVER/AURORA📍 Centennial, CO13.1 mi · 6.2 mi · 3.1 mi · 1 mi
- Oct 31, 2026Narrowleaf Lake Run📍 Loveland, CO10 mi · 7 mi · 4 mi · 1 mi
- Oct 31, 2026PB&J Fuel Run 5K/10K/13.1 DENVER/AURORA📍 Centennial, CO13.1 mi · 6.2 mi · 3.1 mi · 1 mi
- Oct 31, 2026Spooky Sprint - Colorado Springs📍 Colorado Springs, CO13.1 mi · 6.2 mi · 3.1 mi · 1 mi
- Oct 31, 2026Woodmen Hills Monster Mash 5k and Beer Run📍 Peyton, CO3.1 mi
November 2026
- Nov 1, 2026All-Out Kooky-Spooky 1M, 5K, 10K and Half Marathon📍 Golden, CO13.1 mi · 6.2 mi · 3.1 mi
- Nov 1, 2026Girls on the Run Northern Colorado Fall 5K📍 Fort Collins, CO3.1 mi
- Nov 1, 2026Rim Rock Marathon📍 Grand Junction, CO26 mi · 13 mi
- Nov 7, 2026Break a Leg 5k - Grand Junction📍 Grand Junction, CO3.1 mi
- Nov 7, 2026City Park 5k & 1 Mile Walk of Hope for Pancreatic Cancer Research📍 Denver, CO6.2 mi · 3.1 mi
- Nov 7, 2026Colorado 24 Hour Run📍 Fort Collins, CO24 h · 12 h · 6 h
- Nov 7, 2026HRCA Backcountry Wilderness Half Marathon📍 Lone Tree, CO13.1 mi
- Nov 7, 2026Turkey Trails- Denver📍 Lakewood, CO13.1 mi · 6.2 mi · 3.1 mi · 1 mi
- Nov 8, 2026Turkey Trails - Colorado Springs📍 Colorado Springs, CO13.1 mi · 6.2 mi · 3.1 mi · 1 mi
- Nov 14, 2026Louisville Trail Race📍 Louisville, CO3.1 mi · 6.2 mi · 13 mi
- Nov 14, 2026Denver Veterans Day Run📍 Denver, CO6.2 mi · 3.1 mi
- Nov 14, 2026Salute to Veterans 5K/10K/Half Marathon - Denver📍 Aurora, CO6.2 mi · 13.1 mi · 3.1 mi
- Nov 14, 2026Veterans Day Freedom Run 5K/10K/13.1 DENVER/AURORA📍 Centennial, CO13.1 mi · 6.2 mi · 3.1 mi · 1 mi
- Nov 14, 2026Lone Tree Reckoning Half and 5K📍 Loveland, CO13 mi
- Nov 15, 2026Girls on the Run Denver Metro 5K📍 Denver, CO3.1 mi
- Nov 15, 2026Salute to Veterans 5K/10K/Half Marathon - Colorado Springs📍 Colorado Springs, CO3.1 mi · 6.2 mi · 13.1 mi
- Nov 21, 202610k Turkey Trek & 2k Turkey Toddle📍 Arvada, CO13.1 mi · 6.2 mi · 3.1 mi · 1.2 mi
- Nov 21, 2026Pumpkin Pie 5K/10K - Denver, CO📍 Denver, CO6.2 mi · 3.1 mi
- Nov 21, 2026Turkey Trot Predict📍 Colorado Springs, CO3.1 mi
- Nov 26, 2026AdventHealth Avista Louisville Turkey Trot📍 Louisville, CO3.1 mi
- Nov 26, 2026Broomfield Turkey Day 5K/10K📍 Broomfield, CO6.2 mi · 3.1 mi · 0 mi
- Nov 26, 2026Gobble Wobble Run - Littleton📍 Littleton, CO3.1 mi
- Nov 26, 2026Huffin' for Stuffin' 2-Mile Fun Run📍 Loveland, CO2 mi
- Nov 26, 2026Parker Parks and Recreation Turkey Day 5K FUN Run/Walk📍 Parker, CO3.1 mi
- Nov 26, 2026Pelican Lakes Turkey Trot📍 Windsor, CO3.1 mi
- Nov 26, 2026YMCA of Pueblo Turkey Trot📍 Pueblo, CO3.1 mi
- Nov 28, 2026Thanksgiving Gobble Trot Run 5K/10K/13.1 DENVER/AURORA📍 Centennial, CO13.1 mi · 6.2 mi · 3.1 mi · 1 mi
December 2026
- Dec 5, 2026All-Out Fa La La📍 Westminster, CO13.1 mi · 6.2 mi · 3.1 mi
- Dec 5, 2026Candy Cane Course - Colorado Springs📍 Colorado Springs, CO9.3 mi · 6.2 mi · 3.1 mi · 1 mi
- Dec 5, 2026Onesie Dash📍 Red Feather Lakes, CO1 mi
- Dec 5, 2026Sawmill Trail Runs📍 Pine, CO16.1 mi · 8.1 mi
- Dec 6, 2026Candy Cane Course - Denver📍 Denver, CO9.3 mi · 6.2 mi · 3.1 mi · 1 mi
- Dec 6, 2026RMRR December 4.5mi📍 Denver, CO4.5 mi
- Dec 12, 2026Run For Breast Cancer 5K/10K/13.1 DENVER/AURORA📍 Centennial, CO13.1 mi · 6.2 mi · 3.1 mi · 1 mi
- Dec 12, 2026Santa Catch 5k & 10k📍 Windsor, CO6.2 mi · 3.1 mi
- Dec 12, 2026Santa Shuffle - Littleton, CO📍 Littleton, CO3.1 mi
- Dec 12, 2026Sunrise Marathon 5K/10K/13.1 DENVER/AURORA📍 Centennial, CO13.1 mi · 6.2 mi · 3.1 mi · 1 mi
- Dec 12, 2026WinterFest 5k & Fun Run - Thornton, CO📍 Thornton, CO3.1 mi
- Dec 13, 2026Jingle Bell Run 5k - Denver📍 Denver, CO3.1 mi · 1 mi · 100 m
- Dec 13, 2026Waverly Winter Warrior📍 Louisville, CO6.6 mi · 13.1 mi
- Dec 19, 2026Santa's Dash for Ca$h📍 Denver, CO3.1 mi
- Dec 20, 2026Ugly Sweater 5K - Denver📍 Denver, CO3.1 mi
- Dec 26, 2026A Merry Christmas Run 5K/10K/13.1 DENVER/AURORA📍 Centennial, CO13.1 mi · 6.2 mi · 3.1 mi · 1 mi
- Dec 26, 2026New Year's Run 5K/10K/13.1 DENVER/AURORA📍 Centennial, CO13.1 mi · 6.2 mi · 3.1 mi · 1 mi
- Dec 31, 2026Resolution Run - Fort Collins📍 Fort Collins, CO3.1 mi
January 2027
- Jan 1, 2027Resolute Runner 5k📍 Arvada, CO3.1 mi
- Jan 2, 2027YMCA of Pueblo Hot Chocolate 5K📍 Pueblo, CO3.1 mi
- Jan 9, 2027All-Out Polar Prowl📍 Arvada, CO13.1 mi · 6.2 mi · 3.1 mi
- Jan 16, 2027MLK Jr. Freedom Run 5K/10K/13.1 DENVER/AURORA📍 Centennial, CO13.1 mi · 6.2 mi · 3.1 mi · 1 mi
- Jan 17, 2027Colorado Cold Snap📍 Louisville, CO6.2 mi · 3.1 mi
- Jan 24, 2027Freakin Freezin 5K - Denver📍 Denver, CO3.1 mi
- Jan 30, 2027Time Travel Half-Marathon/5K/10K - Denver📍 Denver, CO100 m · 1 mi · 3.1 mi · 6.2 mi
- Jan 31, 2027Time Travel Half-Marathon/5K/10K - Colorado Springs📍 Colorado Springs, CO100 m · 1 mi · 3.1 mi · 6.2 mi
February 2027
- Feb 6, 2027Westy Winter Waggle 5&10k📍 Westminster, CO6.2 mi · 3.1 mi
- Feb 7, 2027Old Man Winter - Lyons, CO📍 Lyons, CO6.2 mi · 3.1 mi
- Feb 13, 2027Heart Throb 5k - Arvada, CO📍 Arvada, CO3.1 mi
- Feb 13, 2027Run for Chocolate 5K/10K/13.1 DENVER/AURORA📍 Centennial, CO13.1 mi · 6.2 mi · 3.1 mi · 1 mi
- Feb 13, 2027Valentine's Day Run 5K/10K/13.1 DENVER/AURORA📍 Centennial, CO13.1 mi · 6.2 mi · 3.1 mi · 1 mi
- Feb 28, 2027Highlands Ranch 5k📍 Highlands Ranch, CO3.1 mi
March 2027
- Mar 6, 2027Women RUN Wynwood takes Puerto Rico📍 United States, CO3 mi
- Mar 13, 2027Erin Go Bragh 7.77k📍 Westminster, CO4.8 mi
- Mar 13, 2027Sharin' O' The Green 5k📍 Fort Collins, CO3.1 mi
- Mar 27, 2027Always Hope Easter Run 5K/10K/13.1 DENVER/AURORA📍 Centennial, CO13.1 mi · 6.2 mi · 3.1 mi · 1 mi
- Mar 27, 2027SuperHeroes Run 5K/10K/13.1 DENVER/AURORA📍 Centennial, CO6.2 mi · 3.1 mi · 13.1 mi · 1 mi
- Mar 28, 2027Central Park 5k📍 Denver, CO3.1 mi
April 2027
- Apr 4, 2027Donut Dash 5K - Denver📍 Denver, CO3.1 mi
- Apr 9, 2027Desert R.A.T.S. Trail Running Festival📍 Fruita, CO62 mi · 30 mi · 13 mi · 5.6 mi
- Apr 10, 2027Trail Running Festival Desert Rats by UTMB®📍 Fruita, CO62 mi · 31 mi · 13 mi · 6.2 mi
- Apr 10, 2027Run for Bagels 5K/10K/13.1 DENVER/AURORA📍 Centennial, CO6.2 mi · 3.1 mi · 13.1 mi · 1 mi
- Apr 17, 2027Rattler Trail Race📍 Colorado Springs, CO31 mi · 16 mi · 6.2 mi · 3.1 mi
- Apr 18, 2027Horsetooth Half Marathon📍 Fort Collins, CO13.1 mi
- Apr 24, 2027All-Out Beat the Heat 1M, 5K, 10K, Half Marathon & Marathon📍 Westminster, CO3.1 mi · 6.2 mi · 13 mi
- Apr 25, 2027Unicorn 5k (Denver-East)📍 Denver, CO3.1 mi
May 2027
- May 1, 2027Greenland Trail Races📍 Palmer Lake, CO4 mi · 8 mi · 16 mi · 31 mi
- May 1, 2027Nielson Challenge July📍 Colorado Springs, CO2 mi
- May 2, 2027Emerge 5K - CO📍 Boulder, CO3.1 mi
- May 2, 2027The Colorado Marathon📍 Fort Collins, CO26.2 mi · 13.1 mi · 6.2 mi · 3.1 mi
- May 2, 2027Colorado Marathon📍 Colorado Springs, CO26 mi · 13 mi · 6.2 mi · 3.1 mi
- May 8, 2027Colterris Wine Run 5k📍 Palisade, CO3.1 mi
- May 9, 2027Denver Mother's Day 5K📍 Denver, CO3.1 mi
- May 15, 2027Marathon de Denver📍 Denver, CO26 mi · 26 mi · 13 mi · 6.2 mi
- May 15, 2027Vallecito Lake Heavy Half📍 Bayfield, CO14 mi
- May 29, 2027North Fork 50K Trail Race📍 Pine Grove, CO31 mi · 50 mi
- May 31, 2027Bolder Boulder📍 Boulder, CO6.2 mi
June 2027
- Jun 2, 2027Turquoise Lake Road & Trail Run📍 Leadville, CO12 mi
- Jun 3, 2027Vail Ultra Benefiting For The Fallen📍 Vail, CO50 mi
- Jun 6, 2027Colorado 13er (Half Marathon/10K/5K)📍 Louisville, CO13.1 mi · 6.2 mi · 3.1 mi
- Jun 12, 2027Alpha 5K Challenge📍 Boulder, CO3.1 mi
- Jun 12, 2027Barr Lake Trail Race📍 Brighton, CO31 mi · 19 mi · 13 mi · 9.3 mi
- Jun 15, 2027Frisco Mountain Goat Kids Trail Running Series📍 Frisco, CO3.1 mi · 804.67 m · 1.5 mi · 1.6 mi
- Jun 26, 2027Denver Pride📍 Denver, CO3.1 mi
- Jun 26, 2027Slacker Race📍 Denver, CO13 mi · 13 mi
July 2027
- Jul 2, 2027The Rundola📍 Telluride, CO0.9 mi
- Jul 3, 2027Hahn’s Peak Hill Climb📍 Steamboat Springs, CO8 mi
- Jul 3, 2027Vail HillClimb Trail Run📍 Vail, CO6.8 mi
- Jul 4, 2027Let Freedom Run 5K/10K - Louisville📍 Louisville, CO6.2 mi · 3.1 mi
- Jul 9, 2027Chase the Moon📍 Highlands Ranch, CO31 mi · 3 h · 6 h · 12 h
- Jul 9, 2027Hardrock Hundred Mile Endurance Run📍 Silverton, CO100 mi
- Jul 10, 2027Cookie Chase📍 Denver, CO3.1 mi
- Jul 10, 2027Leadville Silver Rush Trail Run📍 Leadville, CO50 mi · 15 mi
- Jul 11, 2027Evergreen Mountain Trail Race📍 Evergreen, CO9.3 mi
- Jul 11, 2027Crag Crest Trail Run📍 Grand Junction, CO11 mi
- Jul 13, 2027Frisco Mountain Goat Kids Trail Running Series #3📍 Frisco, CO1.6 mi · 3.1 mi · 800 m
- Jul 14, 2027Tom’s Baby Turnaround Summit Trail Running Series Race #4📍 Breckenridge, CO3.7 mi · 7.5 mi
- Jul 16, 2027Ouray 100 Mile Endurance Run📍 Ouray, CO100 mi · 50 mi
- Jul 16, 2027High Lonesome 100📍 Buena Vista, CO100 mi
- Jul 16, 2027High Lonesome 100 Mile📍 Mount Lincoln, CO100 mi
- Jul 17, 2027Audi Power of Four Trail Run📍 Aspen, CO6.2 mi · 15 mi · 31 mi
- Jul 17, 2027Aspen Valley Marathon📍 Aspen, CO26 mi · 13 mi · 3.1 mi
- Jul 17, 2027Spring Creek Memorial Trail Run📍 Steamboat Springs, CO3.1 mi
- Jul 17, 202710K and 5K at 10,000 Feet📍 Vail, CO6.2 mi · 3.1 mi
- Jul 17, 2027Powderhorn Mountain Ultra, Vertical Challenge and relay📍 Mesa, CO360 m · 720 m · 6.2 mi
- Jul 18, 2027Barr Trail Mountain Race📍 Manitou Springs, CO13 mi
- Jul 18, 2027Kendall Mountain Run📍 Silverton, CO6.8 mi · 12 mi
- Jul 18, 2027Victor Gold Rush Days Pack Burro Race📍 Victor, CO6.8 mi
- Jul 18, 2027Elevate Mountain Running Camp📍 Steamboat Springs, CO4.5 mi
- Jul 23, 2027Blue Moon Trail📍 Colorado Springs, CO3.1 mi · 6.2 mi
- Jul 23, 2027Never Summer Dirty Double📍 Gould, CO37 mi · 62 mi
- Jul 26, 2027The Summit 200📍 Frisco, CO200 mi
- Jul 26, 2027TransRockies Run📍 Buena Vista, CO
- Jul 30, 2027Never Summer 100km & 60km📍 Walden, CO37 mi · 62 mi
- Jul 30, 2027Middle Creek Flyathlon📍 Saguache, CO13 mi · 7 mi
- Jul 31, 2027Berry Picker Trail Run📍 Vail, CO4.6 mi
August 2027
- Aug 1, 2027Emerald Mountain Epic📍 Steamboat Springs, CO13 mi · 26 mi
- Aug 1, 2027Two Brothers Up-and-Down📍 Idaho Springs, CO6.2 mi · 3.1 mi
- Aug 6, 2027High Five 100📍 Lake City, CO100 mi
- Aug 6, 2027Rocky Mountain Half Marathon📍 Estes Park, CO13.1 mi · 3.1 mi
- Aug 6, 2027Snowmass Tree-O | 2k + 5k + 10k + 17k Challenge | Snowmass, CO📍 Snowmass Village, CO11 mi · 6.2 mi · 3.1 mi · 1.2 mi
- Aug 6, 2027Wild West Relay📍 Fort Collins, CO200 mi
- Aug 7, 2027Volcanic 50📍 Marble Mountain Sno-Park, CO32 mi · 15 mi
- Aug 7, 2027Kennebec Mountain Run📍 Hesperus, CO15 mi
- Aug 7, 2027RoC & Roll 5K: Run, Walk, or Wheel📍 Security-Widefield, CO3.1 mi
- Aug 13, 2027San Juan Softie 100📍 Durango, CO100 mi
- Aug 13, 2027Pikes Peak Marathon & Ascent Training Camp📍 Manitou Springs, CO26 mi
Create your personalized training plan
Use our free tools to optimize your training and reach your goals.
Sign in and start