Oregon Triathlon Calendar 2025-2026

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Explore the best triathlons in Oregon for 2025-2026! Our updated list features 148 exciting races across the region. Find your next race in Oregon below and join the running community at these great events!

July 2026
Jul
11-12
Sa - Su

Mt. Hood Trail Runs

Trail Run 25 km 50 km 50 mi
Jul
11
Saturday

Bend Dirt Fest Half Marathon

Trail Run 13 mi
Jul
19
Sunday

Ironman 70.3 Oregon

Triathlon
Jul
25
Saturday

Elkhorn Crest 50

Trail Run 50 km 53 mi
August 2026
Aug
1
Saturday

Waldo 100K

Trail Run
Aug
1-2
Sa - Su

Hood Hundred

Trail Run 100 mi
Aug
8-9
Sa - Su

Boise Spartan Trifecta Weekend

Obstacle Run 5 km 10 km 21 km
March 2030
Mar
3
Sunday

AndyMan's RaceDay Certification

5 km
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