4 aid50K Races in Colorado
As of October 6, 2026, Crewable lists 18 upcoming 50K races in Colorado from October 2026 to September 2027. The next is Suffer Better 10th Annual Fall Trail Runs on October 10 in Pine. Registration is open for 7. One advertises prize money.
Sources: UltraSignup, RunSignUp, UTMB, race organizers and race websites
With aid station data
4 aid
6 aid7 aid
5 aid
Race calendar
October 2026
4 racesNovember 2026
3 racesDecember 2026
1 raceApril 2027
3 racesMay 2027
3 racesJuly 2027
1 raceAugust 2027
2 racesSeptember 2027
1 raceQuick answers
What is the next 50K race in Colorado?
Suffer Better 10th Annual Fall Trail Runs, on Saturday, October 10, 2026, in Pine. Distances: 50K, 25K, 5K.
How many 50K races in Colorado have open registration?
7 of the 18 list registration as open as of October 6, 2026, including Suffer Better 10th Annual Fall Trail Runs, Bobcat Trail Races and Indian Creek Trail Runs.
Which 50K races in Colorado offer prize money?
One race advertises prize money.
What is the busiest month for 50K races in Colorado?
October 2026, with 4 of the 18. November 2026 follows with 3.
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