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Running Calendar near Seneca 2026-2027

Monthly updates for Seneca

Get new running races (and updates) in your inbox every month.

Explore the top running races near Seneca for 2026-2027! We've gathered 45 exciting races in the area. Check out our detailed list below to find your next local race.

Half Marathons Marathons Trail Runs Triathlons Fitness Races
June 2026
Jun
13
Sa

Berta's Tap Spirits Run - Ottawa

5 km
Berta's Tap Spirits Run - Ottawa A relaxed, not timed 5K in Ottawa at Berta's Tap on June 13, 2026 that visits local points of interest including a historic cemetery. The event includes a cocktail, a small bite, an event T-shirt, a wooden medal, and a LaSalle County stamp.
Jun
13
Sa

Minooka Summerfest 5k

5 km
Jun
13
Sa

Red White Glow 5K

5 km
Jun
13
Sa

Plainfield American Legion 5K Charity Run

5 km
Jun
20
Sa

Run the Plank 5k

5 km
Jun
21
Su

PrairieFest 5K

5 km
Jun
27
Sa

Run Today for Tomorrow 5K

5 km
July 2026
Jul
4
Sa

Streator Run For Glory

5 km
Jul
11
Sa

Dwight Pit Stop 6.6k

7 km
August 2026
Aug
1
Sa

PSRR Free 5K Run

5 km
Aug
7
Fr

Wenona 5K

3 mi
Aug
15
Sa

"Boo" Milby Memory 5k

5 km
Aug
28
Fr

Folty 5k

5 km
Aug
29
Sa

Will County Brew Run

5 km
September 2026
Sep
1
Tu

Spirits Run for ALS - Wilmington

5 km 7 km
Spirits Run for ALS - Wilmington A noncompetitive community 6.6K in Wilmington along Route 66 featuring the Gemini Giant. It is one stop on a 300 mile Illinois journey raising awareness and funds for ALS.
Sep
1
Tu

Solidarity Sidekick down Route 66 - Wilmington

7 km
Solidarity Sidekick down Route 66 - Wilmington An untimed 6.6K in Wilmington on Route 66 that highlights the Gemini Giant and The Launching Pad. Participants receive a swag bag and themed medal, with post-run refreshments and local hospitality.
Sep
2
We

Solidarity Sidekick down Route 66 - Gardner

7 km
Solidarity Sidekick down Route 66 - Gardner A daytime 6.6K in Gardner, Illinois along Route 66 that highlights the Streetcar Diner and Two-Cell Jail while supporting a runner's effort to raise ALS awareness; registration opens May 19 with a $40 fee.
Sep
3
Th

Solidarity Sidekick down Route 66 - Dwight

7 km
Solidarity Sidekick down Route 66 - Dwight A daytime 6.6K along Route 66 in Dwight at Ambler's Texaco Station, part of the Solidarity Sidekick Route 66 Series and supporting a run to raise ALS awareness. The event takes place on September 3, 2026.
Sep
4
Fr

Solidarity Sidekick down Route 66 - Pontiac

2 mi 7 km
Solidarity Sidekick down Route 66 - Pontiac A 6.6K run and walk in Pontiac on Route 66 that supports people living with ALS. Participants join a shared 2.1 mile segment with the runner covering the Illinois stretch, set near murals and Route 66 landmarks.
Sep
7
Mo

Sandwich Fair Shake Up Shuffle

5 km
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