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Triathlon Calendar near Seneca 2025-2026

Explore the top triathlons near Seneca for 2025-2026! We've gathered 25 exciting races in the area. Check out our detailed list below to find your next local race.

August 2025
Aug
2
Saturday

Summer's Last Kick

5 km
Aug
2
Saturday

PSRR Free 5K Run

5 km
Aug
3
Sunday

Crossroads Challenge 5K

5 km
Aug
8
Friday

Wenona 5K

5 km
Aug
16
Saturday

"Boo" Milby Memory 5k

5 km
Aug
16
Saturday

Out Run Hunger 5k

5 km
Aug
23
Saturday

Folty 5k

5 km
Aug
30
Saturday

Will County Brew Run

5 km
September 2025
Sep
1
Monday

Sandwich Fair Shake Up Shuffle

5 km
Sep
6
Saturday

Cornell Days 5k

Trail Run 5 km
Sep
12
Friday

Elwood Community Days 5k Run & Walk

5 km
Sep
13
Saturday

Hot Rod Hustle 5K

5 km
Sep
14
Sunday

Run the River for Respect 5K

5 km
Sep
14
Sunday

Better Than Yesterday 5K

5 km
Sep
20
Saturday

Dwight Harvest Days 5K

3 km 5 km
Sep
27
Saturday

Midwest OCR

Obstacle Run 5 km 10 km
Sep
27
Saturday

Corn Fest 5K

2 mi 5 km
Sep
28
Sunday

Plainfield Harvest Run

5 km 10 km
October 2025
Oct
18
Saturday

Bully Blitz 5k Run

5 km
Oct
25
Saturday

Forte 5K

5 km
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