Triathlons in Boulder, CO
Find triathlon events near Boulder, Colorado. RACE tracks 6+ events in the area with real-time registration status, pricing, and course information. Lock in your next triathlon start line.
Triathlon
2026 Tri Boulder Triathlon
Boulder, CO
Triathlon
2026 Tri Boulder Triathlon
July 18, 2026
Boulder, CO
Triathlon
Boulder Kids' Tri Camp
Boulder, CO
Triathlon
Boulder Kids' Tri Camp
August 3, 2026
Boulder, CO
Triathlon
Rocky Mountain Tri-Fest Kids Tri 2026
Boulder, CO
Triathlon
Rocky Mountain Tri-Fest Kids Tri 2026
August 9, 2026
Boulder, CO
Triathlon
Rocky Mountain Tri-Fest Gravel
Boulder, CO
Triathlon
Rocky Mountain Tri-Fest Gravel
August 15, 2026
Boulder, CO
Triathlon
Boulder Sunset Triathlon
Boulder, CO
Triathlon
Boulder Sunset Triathlon
August 29, 2026
Boulder, CO
Frequently Asked Questions
Are there beginner triathlons in Boulder?▾
Yes. Sprint-distance triathlons (750m swim, 20km bike, 5km run) are available near Boulder and are perfect for first-timers. Most can be completed in under 2 hours.
What triathlon distances are available near Boulder?▾
Events near Boulder include sprint, Olympic, half-Ironman, and full Ironman distances. RACE lists all triathlon events with distance details and registration links.