Event details subject to change. Please confirm all information via event website.
Grand Traverse Mountain Run
Mt. Crested Butte Mt. Crested Butte Ski Resort, Crested Butte, CO, United StatesThe Grand Traverse Mountain Run is a point-to-point ultra marathon from Crested Butte to Aspen, Colorado. The course follows the route of the Grand Traverse Backcountry Ski race. In total, […]
10K (and 5K) @ 10,000 Feet
Rabbit Ears Pass Steamboat Springs, CO, United StatesThis is a challenging trail run with beautiful terrain and breathtaking scenery. The 10K race begins at 10,000 ft at the summit of Rabbit Ears Pass. The course begins by […]
Labor Day Half Marathon
Salisbury Park 11920 N Motsenbocker Rd, Parker, CO, United StatesCelebrate the last blast of summer at the Labor Day Half Marathon. Sweat your socks off and let summer have its last hooray at Parker's Salisbury Park just a few miles southeast of Denver. There's a distance to meet every taste with a half marathon 10K and 5K.
Oak Creek No Fun Run
Oak Creek Town Hall 123 Nancy Crawford Blvd, Oak Creek, CO, United StatesThe Running Series is excited to have the Oak Creek No Fun Run on our schedule again! Please join us in remembering long-time Running Series competitor Larry Brooks, a former […]
Littlefoot Sprint Triathlon
Bear Creek Lake Park 15600 W Morrison Rd, Lakewood, CO, United StatesEnjoy a fun late season tri at beautiful Bear Creek Lake Park in a land before time. Set at the base of the foothills, the Littlefoot Triathlon starts off with […]
CMRA South Seven
Bluffs Regional Park 10099 Crooked Stick Pl, Lone Tree, CO, United StatesThe course will be on wide, crushed gravel paths and, depending on the status of construction in the nearby neighborhood, potentially a little bit of single track. It's a hilly, […]
Spirit of the Valley Run
St. Matthew's Episcopal Church 3888 27 1/2 Road, Grand Junction, CO, United StatesHelping to Heal! The Spirit of the Valley Run, Walk 'N Roll 1K and 5K timed races are set for Saturday September 9, 2023. Runners, walkers and rollers are all […]
Run Rabbit Run Ultra
Steamboat Springs Ski Resort 2305 Mt Werner Cir, Steamboat Springs, CO, United StatesThe Run Rabbit Run courses are very much like life, in that there are many, many little and not so little ups and downs in between the obvious highs and […]
Oktoberfest Triathlon
Union Reservoir 461 County Road 26, Longmont, CO, United StatesThe annual Oktoberfest Triathlon on Saturday September 24th, 2022, is the party of the season and also a 2022 Mountain Collegiate Conference Race! As the leaves change color this race […]
Sangre de Cristo Ultras
Music Meadows Ranch 6076 Co Rd 119, Westcliffe, CO, United StatesCome join us on the Rainbow Trail in the Sangre de Cristo mountains. Run beneath the watchful eye of these gorgeous, and ominous, mountains. This race is full of festivities, […]
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