Event details subject to change. Please confirm all information via event website.
Snowmass Tree-O
New Belgium Ranger Station 100 Elbert Lane, ##115, Snowmass Village, CO, United StatesJoin us for the Snowmass Tree-O (2k + 5k + 10k + 17k Challenge) on August 8 & 9, 2025. In partnership with the town of Snowmass and the New Belgium Ranger Station, this unique event will feature a 2k, 5k, and 10k run. The 2k and 5k can be run on Friday night or on Saturday […]
Ute 100
Masons Draw Campground Forest Rd 4821, Moab, UT, United StatesThe Ute 100 is the highest and most scenic race in Utah, taking runners on a breathtaking tour of the La Sal Mountains, Utah's second highest mountain range. The 100 mile course has an average elevation over 8,700 ft and boasts roughly 23,000 ft gain.
Ray’s Race 5K
Sloan's Lake Park 1700 Utica Street, Denver, CO, United States47th Annual Running Psychologists “Ray’s Race” 5k Run & Walk at the American Psychological Association (APA) Convention Register NOW!! to run and walk with the Running Psychologists in Denver, Colorado. The 2025 event will be held on Saturday, August 9th at 7 a.m. at Sloan's Lake Park. The Annual Ray’s Race is an APA tradition […]
Georgetown to Idaho Springs Half Marathon
Georgetown Lake Georgetown Lake Road, Georgetown, CO, United StatesPart of the Colorado Mountain Half + Series, Georgetown to Idaho Springs Half Marathon is a Colorado Runner’s Must-Do. This iconic Half Marathon is one of the most pleasurable races in the western US. The point-to-point course is a scenic and gently rolling downhill mountain course that winds down the Clear Creek Valley -- starting at an […]
Med Bow Rail Marathon
Lake Owen Lake Owen Rd, Albany, WY, United StatesThe Friends of the Medicine Bow Rail Trail will host the second annual Med Bow Rail Marathon & Half Marathon on August 13th, 2022 at Lake Owen in the Medicine Bow National Forest near Laramie, Wyoming.
Human Race Half Marathon
Civic Center Park - Fort Collins Fort Collins, CO 80521, Fort Collins, CO, United StatesWhat is better than one day of running? TWO days of running! The Choice City Running Event in Civic Center Park Fort Collins has something for everyone. Kick off a run-filled weekend with the Jane Welzel Mountain Avenue Mile on Friday evening with 1-mile races for everyone including kids, middle & high school students, families, […]
Holy Cow Trail Stampede
Westminster Promenade 10600 Westminster Blvd, Westminster, CO, United StatesGiddy Up to the Holy COW Trail Stampede where we hit the trail together! All participants will receive a short sleeved, performance blend tech tee.
Frontier Academy Community 5K
Twin Rivers Park 1501 65th Avenue, Greeley, CO, United StatesThe Frontier Academy Community 5K is meant to serve the community of Greeley and the surrounding area. Through this race we hope to fulfill the vision and mission of our school - 'Building Leaders'.
Run the Rockies Trail Half Marathon
Frisco Adventure Park 621 Recreation Way, Frisco, CO, United StatesThe Run the Rockies Trail 5k, 10k, and half marathon will lead runners through the Frisco Peninsula trails with breathtaking views of Dillon Reservoir and the Ten Mile Range. This is a great course for a first time half-marathoner or runners looking for a fun course that offers single track and dirt road trails. Racers […]
Arapahoe Warrior 5K
Arapahoe High School 2201 E. Dry Creek Rd, Centennial, CO, United StatesCome out and support the Arapahoe Warrior Cross Country team at the 3rd annual Arapahoe Warrior 5K. $10.00 of every registration goes directly back to the Arapahoe Cross Country Booster team.
Please click here to submit your event for FREE to our online calendar.
We do not allow events without physical locations (IE – virtual runs, runs with locations TBD, etc…).
Please allow 48 hours after submission for an event to appear on the calendar. If you have already listed your event and would like us to update it, please contact us.