Colorado
Colorado Triathlon Calendar 2025-2026
Explore the best triathlons in Colorado for 2025-2026! Our updated list features 8 exciting races across the region. Find your next race in Colorado below and join the running community at these great events!
August 2025
The Longmont Try-A-Tri is a super-sprint triathlon held in Longmont, Colorado, designed for beginners, those recovering from injuries, or anyone easing into triathlon sports. The event features a 200-..
The Gunnison Valley Triathlon, held in Gunnison, Colorado, is a family-friendly sprint triathlon featuring events for both kids and adults. The race starts at the Gunnison Recreation Center with a 500..
The Give It a Tri Sprint Triathlon takes place in Pagosa Springs, Colorado, offering a full sprint triathlon and a kid-friendly super sprint option. The full sprint includes an 800-yard swim, a 20-kil..
September 2025
SheSprints is Colorado’s premier women-only triathlon and duathlon event held at Cherry Creek State Park in Aurora, CO. Celebrating strength, health, and sisterhood, it offers multiple race options in..
The Lake Nighthorse Triathlon, held in Durango, Colorado, offers both Sprint and Olympic distance races. The Sprint includes a 750-meter swim in Lake Nighthorse, a 20-kilometer bike ride featuring hil..
The Splashland Triathlon, held annually in Alamosa, Colorado, is a sprint triathlon featuring a 3.2-mile run, a 10-mile bike ride, and a 400-yard swim in a geothermal swimming pool. This event welcome..
The 24th Annual Black Canyon Triathlon, held in Montrose, Colorado, is a well-supported sprint distance triathlon attracting about 200 athletes annually. The event features divisions for youth, adults..
June 2026
IRONMAN 70.3 Boulder is a half-distance triathlon held in Boulder, Colorado, known for its stunning natural backdrop at the foot of the Rocky Mountains. The race features a reservoir swim, a scenic an..
Articles
