Marathon races in Illinois, United States — 2026 running calendar

Sullivan Dash & Bash

Sullivan, Illinois, United States

13 Jun, 2026 (Sat)

$10.00 - $50.00

Running

5K 1.6K 10K Half-Marathon +2

Stan's Donut Race

Chicago, Illinois, United States

18 Jul, 2026 (Sat)

$29.99 - $59.99

Running

10K 5K 1.6K 9.8K +4

Belleville Main Street Marathon & Half Marathon

Belleville, Illinois, United States

26 Sep, 2026 (Sat)

$95.00 - $105.00

Running

Marathon Half-Marathon

14th Annual Springfield Marathon & Harvest Wind Half Marathon & 10K

New Berlin, Illinois, United States

07 Nov, 2026 (Sat)

$45.00 - $65.00

Running

Marathon Half-Marathon 10K

Rend Lake Marathon

Benton, Illinois, United States

27 Mar, 2027 (Sat)

$50.00 - $100.00

Running

Marathon Half-Marathon 10.5K

Starved Rock Country Marathon

Ottawa, Illinois, United States

09 May, 2026 (Sat)

Running

Marathon Half-Marathon 10K 5K +2

Chicagoland Spring Marathon, Half Marathon & 10K

Schaumburg, Illinois, United States

03 May, 2026 (Sun)

Running

Marathon Half-Marathon 10K +5

Race Through Illinois 1M, 5K, 10K, 13.1, 26.2 – Now Only $20!

Chicago, Illinois, United States

01 Feb, 2026 (Sun) – 31 Dec, 2026

$20.00

Running

1.6K 5K 10K Half-Marathon +1