Colorado Multisport Calendar

Colorado Triathlon

Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United States

Colorado Sprint Triathlon: 750 meter swim, rolling and fast 17 mile bike, and finishes with a 3.1 mile run Colorado Olympic Triathlon: 1500m swim, 23.5 mile bike, and a 10k […]

Stroke & Stride

Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United States

The Boulder Stroke & Stride offers Boulder area athletes a fun 1-lap 750 Meter Swim, or 2-Lap 1500 Meter swim in Boulder Reservoir, followed by a 5k run on the […]

IRONMAN 70.3 Boulder

Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United States

Presale Registration for 2023 IRONMAN 70.3 Boulder opens at 10am MT on Thursday, August 4, 2022.

Stroke & Stride

Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United States

The Boulder Stroke & Stride offers Boulder area athletes a fun 1-lap 750 Meter Swim, or 2-Lap 1500 Meter swim in Boulder Reservoir, followed by a 5k run on the […]

XTERRA Lory

Lory State Park (Fort Collins) 708 Lodgepole Drive, Bellvue, CO, United States

XTERRA Lory Triathlon on June 18th is the perfect kick-off to the year for the seasoned off-road triathlete, or a great opportunity for the road triathlete wanting to try out […]

Stroke & Stride

Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United States

The Boulder Stroke & Stride offers Boulder area athletes a fun 1-lap 750 Meter Swim, or 2-Lap 1500 Meter swim in Boulder Reservoir, followed by a 5k run on the […]

Loveland Lake to Lake Triathlon

North Lake Park (Loveland) 2750 N. Taft Ave., Loveland, CO, United States

This event provides a beautiful venue. The transition area and lake are near North Lake Park. North Lake Park is a nice setting for competitors and families. It has a […]

Boulder Sunrise Triathlon

Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United States

Kick off your summer of racing in Boulder.

Stroke & Stride

Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United States

The Boulder Stroke & Stride offers Boulder area athletes a fun 1-lap 750 Meter Swim, or 2-Lap 1500 Meter swim in Boulder Reservoir, followed by a 5k run on the […]

Timberview Trail Run

Lory State Park (Fort Collins) 708 Lodgepole Drive, Bellvue, CO, United States

Crisp morning air and a summer sunrise in Colorado. YES PLEASE! Join us on the foothills at Lory State Park for a fun & beautiful morning trail race. This run […]

LG Triathlon

Gypsum Gypsum, CO, United States

The LG Tri is a sprint triathlon honoring VVCF grant recipient Laura Genelin. The course features a 500-yard swim (10 laps), followed by a 12-mile bike ride and 5K run. […]

Stroke & Stride

Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United States

The Boulder Stroke & Stride offers Boulder area athletes a fun 1-lap 750 Meter Swim, or 2-Lap 1500 Meter swim in Boulder Reservoir, followed by a 5k run on the […]

Boulder Peak Triathlon logo