Frederick
Triathlon Calendar near Frederick 2026-2027
Monthly updates for Frederick
Get new running races (and updates) in your inbox every month.
Explore the top triathlons near Frederick for 2026-2027! We've gathered 5 exciting races in the area. Check out our detailed list below to find your next local race.
October 2026
Mini Tri comp only on October 31, 2026 in Fort Lupton features 15 minute swim bike run slots, combined time scoring, and prizes for fastest time and costumes.
February 2027
A winter bike rally and trail run in Lyons, Colorado offering multiple run and ride distances plus an afterparty with food, music and saunas.
June 2027
A mixed gravel-bike and trail-running festival in Lyons, Colorado on June 6, 2027, featuring races from 100K to 5 miles plus relays, BMX, camping and a concert.
IRONMAN 70.3 Boulder is a 70.3 triathlon in Boulder, CO with a reservoir swim, hilly bike and run courses and racing at higher elevation.
September 2027
A lakefront multisport event at Boyd Lake State Park on September 26, 2027 offering triathlon, duathlon, aquabike and SUP races with on-site camping and spectator friendly courses.
Monthly updates for Frederick
Get new running races (and updates) in your inbox every month.