Marathon races in Illinois, United States — 2026 running calendar

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

Mar

27

Rend Lake Marathon

Benton, Illinois, United States

$50.00 - $115.00

Running

Marathon Half-Marathon 10.5K

May

02

Chicagoland Spring Marathon, Half Marathon & 10K

Schaumburg, Illinois, United States

$39.99 - $159.99

Running

Marathon Half-Marathon 10K +5

May

08

Starved Rock Country Marathon

Ottawa, Illinois, United States

$45.00 - $120.00

Running

Marathon Half-Marathon 10K 5K +2

Oct

10

Bank of America Chicago Marathon Acs Team DetermiNation Reservation System

Chicago, Illinois, United States

$25.00

Running

Marathon SPECIAL PERMISSION Chicago Marathon Charity Entry (Participant pays for entry) - $3000 Minimum SPECIAL PERMISSION FREE Chicago Marathon Charity Entry (ACS pays for entry) - $5000 Minimum FAST TRACK Chicago Marathon Charity Entry (Participant pays the entry fee) - $7500 Minimum +5

Oct

10

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

Chicago, Illinois, United States

$100.00

Running

Marathon

Sep

26

Belleville Main Street Marathon & Half Marathon

Belleville, Illinois, United States

Running

Marathon Half-Marathon

Jul

18

Stan's Donut Race

Chicago, Illinois, United States

Running

10K 5K 1.6K 9.8K +4

Jun

13

Sullivan Dash & Bash

Sullivan, Illinois, United States

Running

5K 1.6K 10K Half-Marathon +2

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