Race Discovery

Marathon races in Illinois, United States — 2026 running calendar

9 events found

Belleville Main Street Marathon & Half Marathon logo
Sep
26

Belleville Main Street Marathon & Half Marathon

Belleville, Illinois, United States
$110.00 - $120.00
Running
Marathon Half-Marathon
14th Annual Springfield Marathon & Harvest Wind Half Marathon & 10K logo
Nov
07

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

New Berlin, Illinois, United States
$55.00 - $75.00
Running
Marathon Half-Marathon 10K
Rend Lake Marathon logo
Mar
27

Rend Lake Marathon

Benton, Illinois, United States
$50.00 - $100.00
Running
Marathon Half-Marathon 10.5K
Chicagoland Spring Marathon, Half Marathon & 10K logo
May
02

Chicagoland Spring Marathon, Half Marathon & 10K

Schaumburg, Illinois, United States
$39.99 - $159.99
Running
Marathon Half-Marathon 10K +5
Bank of America Chicago Marathon Semper Fi & America's Fund Team logo
Oct
10

Bank of America Chicago Marathon Semper Fi & America's Fund Team

Chicago, Illinois, United States
$100.00
Running
Marathon
Stan's Donut Race logo
Jul
18

Stan's Donut Race

Chicago, Illinois, United States
Running
10K 5K 1.6K 9.8K +4
Sullivan Dash & Bash logo
Jun
13

Sullivan Dash & Bash

Sullivan, Illinois, United States
Running
5K 1.6K 10K Half-Marathon +2
Starved Rock Country Marathon logo
May
09

Starved Rock Country Marathon

Ottawa, Illinois, United States
Running
Marathon Half-Marathon 10K 5K +2
Race Through Illinois 1M, 5K, 10K, 13.1, 26.2 – Now Only $20! logo
Feb
01

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

Chicago, Illinois, United States
$20.00
Running
1.6K 5K 10K Half-Marathon +1