Boulder Running Events

Tri Boulder Sprint, Olympic & Long Course

Boulder Reservoir 19 Jul 2025

Boulder Sunrise Triathlon

Boulder Reservoir 29 Jun 2025

Boulder Rez Half Marathon

Boulder Reservoir 12 Apr 2025

Avery Spring 5k | Avery Brewing | 2025 CO Brewery Running Series

Avery Brewing Company 6 Apr 2025

Colorado Triathlon (Sprint, Olympic, Duathlon, & Aquabike)

Boulder Reservoir 7 Jun 2025

Boulder Rez Marathon

Boulder Reservoir 2 Aug 2025

Boulder Peak Triathlon, Duathlon, & Aquabike

Boulder Reservoir 13 Jul 2025

Rev Run Swim Class - WINTER 25

East Boulder Community Center 10 Jan 2025