American Heroes Run

Rogers Grove Park 220 North 95th Street, Longmont, CO, United States

The tragic events of 9/11/01 changed our nation forever. Let us not forget our proud history and those who fight everyday to keep us free. Please join us for this special day on this beautiful, flat, fast 1.05-mile loop course. The 100-mile race cutoff is 30 hours. No politics, just patriotism. - David Clark #WeAreSuperman […]

Flaming Foliage Relay

Citizens Park 17th Ave & Miner St, Idaho Springs, CO, United States

Flaming Foliage is a 165 mile overnight team relay race adventure with single track trails, from Idaho Springs to beautiful Buena Vista, over Guanella, Georgia & Fremont Passes. Since 2013, Flaming Foliage has provided teams and runners with a life changing relay adventure with experiences and views you will never forget. Each team consists of […]

Littlefoot Sprint Triathlon

Bear Creek Lake Park 15600 W Morrison Rd, Lakewood, CO, United States

Enjoy 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 a 750 meter swim in Big Soda Lake, with water temps expected to be approximately 70 degrees. Next, a rolling 15K bike ride on smooth […]

Black Squirrel Half Marathon

Lory State Park 708 Lodgepole Dr, Bellvue, CO, United States

The Black Squirrel Trail Half Marathon takes place on the wonderful trails of Lory State Park to the northwest of Fort Collins, CO. The trail half marathon course offers a tour of the outer boundaries of Lory State Park, providing breathtaking views to the east of Horsetooth Reservoir, Fort Collins and the Great Plains; and […]

$75 – $99

Devil on the Divide 50K/22K

Minton Park Cemetery Rd, Empire, CO, United States

We are pleased to present one of the most beautiful and challenging trail racing events in the state of Colorado with breathtaking (literally and figuratively) views of Clear Creek County and the Continental Divide. Participants will reach a top altitude over 13,000 feet. The 50K course climbs over 6500 feet.  Due to the difficulty and […]

Lake Nighthorse Triathlon

Lake Nighthorse 1795 CR 210, Durango, CO, United States

Sprint Triathlon - 750 Meter Swim, 12.5 Mile Bike (road), 3.1 Mile Run

Imogene Pass Run

Ouray Ouray, CO, United States

The Imogene Pass Run (IPR) is a 17.1 mile point-to-point mountain race within the western San Juan mountains of Colorado. The course runs along a route which connects the towns of Ouray (7810 ft.) and Telluride (8750 ft.) by way of 13,114 foot Imogene Pass. The IPR is held on the first Saturday after the […]

$60

Cirque Series 14K

Arapahoe Basin Ski Resort 28194 US-6, Keystone, CO, United States

The race begins at 10,780' ft, starting at the base of Arapahoe Basin, Mountain Goat Plaza, head up to the High Noon parking lot, then to last chance.  You will cross highway 6, get on the A-Basin summer road.  You will follow the summer road up to Black Mountain Lodge.  From Black Mountain Lodge you […]

Horsetooth Open Water Swim

Horsetooth Reservoir 4200 W County Road 38 E, Fort Collins, CO, United States

Swim a 10K, 2.4 miles, 1.2 miles, 1000 meters, or 250 meters in the Horsetooth Reservoir.  The Horsetooth Open Water Swims incorporated as an independent 501(c)3 not-for-profit organization.  Our current beneficiary is Partners Mentoring Youth.

Event Series RMRR Trophy Series

RMRR 5K/10K

Riverwalk Ballfields 9830 Riverdale Rd, Thornton, CO, United States

Everyone – slow, fast, or in-between –  can win  at RMRR Trophy Series races.  With our handicap scoring system, we predict YOUR finish time based on recent running results, giving you a great goal to shoot for whatever your speed.  Just show up an hour before the start and we’ll get you ready for your race.  It’s an […]

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