Event details subject to change. Please confirm all information via event website.
Horsetooth Open Water Swim
Horsetooth Reservoir 4200 W County Road 38 E, Fort Collins, CO, United StatesSwim 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.
RMRR Fall Marathon Training Series
Riverwalk Ballfields 9830 Riverdale Rd, Thornton, CO, United StatesRMRR’s Marathon Training Series provides 10M and 20M races that are low cost, friendly, fully supported, and officially timed. All you need to do is focus on your running! Our races fit perfectly in training schedules for Colfax, Boston, New York, Chicago, and other full and half marathons. Everyone is welcome at our MTS races: RMRR members, […]
Tri the Rock Kids Tri
Butterfield Park 3952 Butterfield Crossing Drive, Castle Rock, CO, United StatesWe welcome you to our 17th annual youth triathlon! Tri the Rock is designed for, and open to youth ages 5 to 18. Come for a great day of fun, food, prizes and sport! Age division participants for Tri the Rock compete based on age on RACE DAY. Be sure to register and prepare accordingly. Race […]
RMRR 5K/10K
Riverwalk Ballfields 9830 Riverdale Rd, Thornton, CO, United StatesEveryone – 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 […]
Denver Rocks Run 5K/10K
City Park - Denver 1700 N York St, Denver, CO, United StatesWe all know Denver is known for its world-class cultural attractions, thriving craft breweries, and red-hot music scene. Be part of the first 5K/10K running event of its kind with this rock n' roll infused run that kicks off at Civic Center Park in downtown Denver on November 6, 2021.
Flyin’ Lion 5K
Littleton High School 199 E Littleton Blvd, Littleton, CO, United StatesThe Flyin' Lion 5K returns this year to raise money to support Littleton High School’s Lions Sports Booster Club, a non-profit 501c3 made up of parent volunteers and school administrators. The race will take place at Littleton High School on October 2nd, 2022.
Rebel Run 5K
Stapleton Central Park 8801 Martin Luther King Jr Blvd, Denver, CO, United StatesJoin Conservation Colorado for the first-ever Rebel Run 5k! Run, walk or stroll to show your passion for Colorado's climate, air, land, water and communities. Create or join a team, or go solo – every dollar you donate or raise supports Conservation Colorado's efforts to protect the beautiful state we love and the communities who […]
Honey Bee Hustle
Fairgrounds Park 700 S Railroad Ave, Loveland, CO, United StatesAre you ready to challenge yourself? We will have a 1-mile loop open for 1 ½ hrs. Who can run the most loops in 1 ½ hrs? Who can run the fastest? We will have awards for different categories. Come challenge yourself at the Honey Festival while running the Honey Bee Challenge! There will be […]
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 lows. Be prepared. The 50 mile race starts bright and early at 6 AM at the Steamboat Springs ski area (elevation, 6,900 feet) on Saturday, […]
Snow Mountain Ranch Trail Festival
YMCA of the Rockies - Snow Mountain Ranch 1101 County Rd #53, Granby, CO, United StatesJoin us at the YMCA of the Rockies in Granby for the 12th annual Snow Mountain Ranch Trail Running Festival. This event features 4 races with 2 different "challenges". Races will include a 50K, 33K, Half Marathon,10K and 5K. Challenge yourself with our popular "Moosehead Challenge" and "Baby Moose Challenge" by completing multiple events in […]
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