Iowa Trail Running Calendar 2025-2026

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Explore the best trail runs in Iowa for 2025-2026! Our updated list features 120 exciting races across the region. Find your next race in Iowa below and join the running community at these great events!

August 2025
Aug
9
Saturday

Adel Sweet Corn Festival 5K

5 km
Aug
9
Saturday

Mines Of Spain Trail Races

Trail Run 4 mi 7 mi 13 mi
Aug
9
Saturday

Twin Lakes Triathlon

Triathlon
Aug
10
Sunday

Trench Run

Trail Run 10 km
Aug
16
Saturday

Summer Sizzler - Des Moines

5 km 10 km 15 km
Aug
16
Saturday

Iowa Trail Run Series: Annett Nature Center

Trail Run 5 km 10 km
Aug
23
Saturday

Timber Triathlon

Triathlon
Aug
23
Saturday

Scoco50 - Long Grove, IA

Trail Run 5 mi 10 mi 50 km
Aug
23
Saturday

Lincolnway 5K

5 km
Aug
30
Saturday

Step up Half Marathon

5 km 13 mi
Aug
30
Saturday

Booneville Backroads Ultra

Trail Run 10 km 50 km 100 km 100 mi
Aug
31
Sunday

NewBo Run

10 km 13 mi
Aug
31
Sunday

Summer Sizzler - Cedar Falls

5 km 10 km 15 km
September 2025
Sep
6
Saturday

Black Hawk YMCA Triathlon

Triathlon
Sep
7
Sunday

Clinton Half Marathon

5 km 10 km 13 mi
Sep
13
Saturday

Pleasant Creek Trail Run

Trail Run 15 km 30 km 45 km
Sep
13
Saturday

Running Free 5K

5 km
Sep
13
Saturday

Benefit Classic – Mississippi Valley Running Association

5 km 13 mi
Sep
20
Saturday

Broken Anvil Backyard Ultra

Backyard Ultra 4 mi
Sep
20
Saturday

Great River Bridge Race

5 km 10 km
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