Events North Shore Turkey Trot 5K, 10K and Kids' Trot Highland Park, IL McLaren Park Shelley Drive 5K San Francisco, CA Airman Christian Bellmore Memorial Run/walk Merritt Island, FL Event Series Ironman Triathlon Rock 'n' Roll Marathon Spartan Race Hot Chocolate Run Ragnar Relay
North Shore Turkey Trot 5K, 10K and Kids' Trot Highland Park, IL McLaren Park Shelley Drive 5K San Francisco, CA Airman Christian Bellmore Memorial Run/walk Merritt Island, FL
April 2025 Brad Bishop RaceDay Certification Fort Collins, CO Fri - Apr 04, 2025 Running > 5k 2025 Imperial Challenge Breckenridge, CO Apr 5, 2025 - Apr 6, 2025 Triathlon Trending Donut Dash Denver, CO Apr 6, 2025 - Jan 6, 2025 (9:00 AM) Running > 5k, Virtual Donut Dash Denver, CO Sun - Apr 06, 2025 @ 10:30 AM Running > 5k Denver Distance Classic Englewood, CO Fri - Apr 11, 2025 Running Run Through The Decades 6K/7K/8K/Half - Colorado Springs Colorado Springs, CO Sat - Apr 12, 2025 Running > 8k, Half Marathon Run Through The Decades 6K/7K/8K/Half - Colorado Springs Colorado Springs, CO Sat - Apr 12, 2025 @ 8:00 AM Running > 8k, Half Marathon, Other Running Horsetooth Half Marathon Fort Collins, CO Sun - Apr 13, 2025 @ 8:00 AM Running > Half Marathon Platte River Half-Marathon and Relay Littleton, CO Sun - Apr 13, 2025 Running > Half Marathon Dash for Detection: Oral Cancer Awareness 5K Denver, CO Sun - Apr 13, 2025 Running > 5k Little Wolverine Invitational Bayfield, CO Fri - Apr 18, 2025 Running Earth Day: Run GREEN 5K/10K/13.1 DENVER/AURORA Centennial, CO Sat - Apr 19, 2025 Running > 1 mile, 10k, 5k, Half Marathon Great Western Trail Race - 5k, 10k, Half Marathon - Severance, CO (April 19, 2025) Severance, CO Sat - Apr 19, 2025 @ 7:00 AM Running > 5k Always Hope Easter Run 5K/10K/13.1 DENVER/AURORA Aurora, CO Sat - Apr 19, 2025 Running > 5k Fake QR Fort Collins, CO Fri - Apr 25, 2025 Running > Obstacle Race Manion WOD - Broomfield Oracle Fitness Center Broomfield, CO Apr 25, 2025 - Apr 29, 2025 Running Bigfoot Half Marathon Estes Park, CO Sat - Apr 26, 2025 Running > Half Marathon, 5k Manion WOD - The Denver Sheriff's Department Denver, CO Sat - Apr 26, 2025 Running Life in Color 5K Grand Junction, CO Sat - Apr 26, 2025 Running Manion WOD - B3 Nutrition and Fitness Fort Morgan, CO Sat - Apr 26, 2025 Running Springtime Sprint 5k Golden, CO Sat - Apr 26, 2025 Running May 2025 Sloth Runners Race 5K/10K/13.1 DENVER/AURORA Centennial, CO Sat - May 03, 2025 Running > 5k, 10k, Half Marathon, 1 mile Greenland Trail Races Larkspur, CO Sat - May 03, 2025 @ 7:00 AM Running > 5k, Trail 21st Annual Bob Turner Classic 5k Run/Walk Berthoud, CO May 3, 2025 - May 4, 2025 Running > 5k Cinco De Mayo Run: Against All Odds DENVER/AURORA Aurora, CO Sat - May 03, 2025 Running > 5k Water Wells for Africa 5k Walk/Run Silt, CO Sun - May 04, 2025 Running > 5k The Colorado Marathon Fort Collins, CO Sun - May 04, 2025 Running > 5k Walk Run or Roll for Daniel Colorado Springs, CO Tue - May 06, 2025 Running Muddy Dash | Denver Erie, CO May 10, 2025 - May 11, 2025 Running > 5k Quad Rock 50/25mi Bellvue, CO May 10, 2025 - May 11, 2025 Running > Ultra 1 2 3 4 5 › » Add your event to the calendar Trending Events North Shore Turkey Trot 5K, 10K and Kids' Trot McLaren Park Shelley Drive 5K Airman Christian Bellmore Memorial Run/walk
Run Through The Decades 6K/7K/8K/Half - Colorado Springs Colorado Springs, CO Sat - Apr 12, 2025 Running > 8k, Half Marathon
Run Through The Decades 6K/7K/8K/Half - Colorado Springs Colorado Springs, CO Sat - Apr 12, 2025 @ 8:00 AM Running > 8k, Half Marathon, Other Running
Earth Day: Run GREEN 5K/10K/13.1 DENVER/AURORA Centennial, CO Sat - Apr 19, 2025 Running > 1 mile, 10k, 5k, Half Marathon
Great Western Trail Race - 5k, 10k, Half Marathon - Severance, CO (April 19, 2025) Severance, CO Sat - Apr 19, 2025 @ 7:00 AM Running > 5k
Sloth Runners Race 5K/10K/13.1 DENVER/AURORA Centennial, CO Sat - May 03, 2025 Running > 5k, 10k, Half Marathon, 1 mile