Idaho Trail Running Calendar 2025-2026

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Explore the best trail runs in Idaho for 2025-2026! Our updated list features 95 exciting races across the region. Find your next race in Idaho below and join the running community at these great events!

July 2025
Jul
12
Saturday

Hayden Sprint Triathlon

Triathlon
Jul
12
Saturday

Rigby Lake Rumble Triathlon

Triathlon
Jul
12
Saturday

Beaverhead Endurance Runs

Trail Run 55 km 100 km
Jul
12
Saturday

Mccall Trailrunning Classic

Trail Run 30 km 50 km
Jul
12
Saturday

Christmas Half Marathon in July - Boise

5 km 10 km 13 mi
Jul
12
Saturday

Donut Dash 10k - Moscow, ID

Trail Run 10 km
Jul
19
Saturday

Mesa Falls Marathon

5 km 10 km 21 km 42 km
Jul
19
Saturday

Goose Creek Run-off

5 km 10 km
Jul
19
Saturday

Tin Cup Challenge

5 km 10 km
Jul
19
Saturday

Kootenai River Run 10K

5 km 10 km
Jul
25-27
Fr - Su

Standhope 100

Trail Run 100 mi
Jul
25-27
Fr - Su

Standhope Ultra Trail

Trail Run 30 km 60 km 100 mi
Jul
26
Saturday

Idaho Falls Marathon

5 km 13 mi 26 mi
Jul
26
Saturday

Ironman 70.3 Boise

Triathlon
Jul
26
Saturday

Baby Foot 5K

3 mi
August 2025
Aug
1-2
Fr - Sa

Owyhee 50/50 Night Run

Trail Run 50 km 50 mi
Aug
2
Saturday

Boise Front Trail Run

Trail Run 5 mi 10 mi
Aug
2
Saturday

Farm Life 5k Trail Run

Trail Run Obstacle Run 5 km
Aug
9
Saturday

Coeur d'Alene Triathlon

Triathlon
Aug
9
Saturday

PRR Summer Series - Warnick 10k

Trail Run 10 km
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