Idaho Triathlon Calendar 2025-2026

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Explore the best triathlons in Idaho for 2025-2026! Our updated list features 13 exciting races across the state. Find your next race in Idaho below and join the running community at these great events!

June 2025
Jun
7
Saturday

Treasure Valley Triathlon

Triathlon
Jun
21
Saturday

Blackfoot Kicker Triathlon

Triathlon
Jun
22
Sunday

Ironman 70.3 Coeur d'Alene

Triathlon
Jun
22
Sunday

Mary Lou Triathlon

Triathlon
July 2025
Jul
12
Saturday

Rigby Lake Rumble Triathlon

Triathlon
Jul
12
Saturday

Hayden Sprint Triathlon

Triathlon
Jul
26
Saturday

Ironman 70.3 Boise

Triathlon
August 2025
Aug
9
Saturday

Coeur d'Alene Triathlon

Triathlon
Aug
23
Saturday

The Great Snake River Triathlon

Triathlon
Aug
23
Saturday

Priest Lake Triathlon

Triathlon
September 2025
Sep
13
Saturday

Idaho High Mountain Triathlon

Triathlon
Sep
13
Saturday

Bear Lake Brawl Triathlon

Triathlon
Sep
20
Saturday

Rexburg Rush Triathlon

Triathlon
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