10K races in Illinois, United States — 2026 running calendar

Rend Lake Run With Rotary

Benton, Illinois, United States

23 May, 2026 (Sat)

Running, Walking

10K 5K 2K

Memorial Day Run 5K/10K/13.1 CHICAGO/EVANSTON

Chicago, Illinois, United States

23 May, 2026 (Sat)

Running

5K 10K Half-Marathon 1.6K +2

Goose Creek Classic

Odin, Illinois, United States

23 May, 2026 (Sat)

Running, Walking

5K 10K 2.5K 1K

Frontline OCR

Byron, Illinois, United States

23 May, 2026 (Sat)

Obstacle race, Running

10K 5K 1.6K +12

Western Springs Tower Trot

Western Springs, Illinois, United States

23 May, 2026 (Sat)

Walking, Running

5K 10K 15K +3

I Got Your Six Walk/Run

Bourbonnais, Illinois, United States

17 May, 2026 (Sun)

Running, Walking

5K 10K 3.2K +3

Darien Dash

Darien, Illinois, United States

17 May, 2026 (Sun)

Running

10K 5K 1.6K

Starved Rock Country Marathon

Ottawa, Illinois, United States

09 May, 2026 (Sat)

Running

Marathon Half-Marathon 10K 5K +2

Mother's Day 5K, 10K & Half Marathon

Lake Zurich, Illinois, United States

08 May, 2026 (Fri) – 10 May, 2026

Running

5K 10K Half-Marathon

Chicagoland Spring Marathon, Half Marathon & 10K

Schaumburg, Illinois, United States

03 May, 2026 (Sun)

Running

Marathon Half-Marathon 10K +5

Byron Rocks 5k & 10k - Run it. Walk it. Ruck it.

Byron, Illinois, United States

02 May, 2026 (Sat)

Running

5K 10K

Cinco De Mayo Run 5K/10K/13.1 CHICAGO/EVANSTON

Chicago, Illinois, United States

02 May, 2026 (Sat)

Running

5K 10K Half-Marathon 1.6K +2