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Oregon Triathlon Calendar 2025-2026

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Explore the best triathlons in Oregon for 2025-2026! Our updated list features 9 exciting races across the region. Find your next race in Oregon below and join the running community at these great events!

April 2026
Apr
26
Su

Spring Classic Duathlon & Half Marathon

Duathlon 5 km 10 km Half Marathon
May 2026
May
9
Sa

Gator Grinder Triathlon

Triathlon
May
31
Su

PDX Triathlon Festival

Triathlon
June 2026
Jun
6-7
Sa - Su

Best in the West Triathlon

Triathlon
Jun
20-21
Sa - Su

HAGG Lake Triathlon

Triathlon
July 2026
Jul
19
Su

Ironman 70.3 Oregon

Triathlon
Jul-Aug
31-1
Fr - Sa

Columbia River Triathlon

Triathlon
August 2026
Aug
1
Sa

Xterra Portland

Cross Triathlon
Aug
2
Su

Girlfriends Triathlon & Fitness Festival

Triathlon