Triathlon Race Calendar in Colorado, United States

The Valley Bottom Rio Trio

Alamosa, Colorado, United States

06 Jun, 2026 (Sat) – 07 Jun, 2026

$15.00 - $35.00

Adventure race, Triathlon

22.3K 2.8K +2

Sheep Creek Triathlon

Antonito, Colorado, United States

04 Jul, 2026 (Sat)

$25.00

Triathlon

4.8K

Surf and Turf Triathlon

Aurora, Colorado, United States

12 Jul, 2026 (Sun)

$75.00

Triathlon

22K 12K

CCOC Kids Triathlon

Colorado Springs, Colorado, United States

29 Jul, 2026 (Wed)

Triathlon

4.8K

Boulder Kids' Tri Camp

Boulder, Colorado, United States

03 Aug, 2026 (Mon) – 07 Aug, 2026

$200.00

Triathlon

Boulder Kids' Tri Camp

2026 Lake Nighthorse Triathlon - Sprint and Olympic

Durango, Colorado, United States

12 Sep, 2026 (Sat)

$95.00 - $140.00

Triathlon

25.8K Ultra +1

The Grand Traverse

Crested Butte, Colorado, United States

29 Mar, 2026 (Sun) – 06 Sep, 2026

$220.00 - $388.00

Skiing, Triathlon, Running, Duathlon, Mountain biking

Ultra +1