Illinois Half Marathons by Date • By City
Browse all 2020 Illinois half marathons by month below. For each race, you’ll find course maps, elevation profiles, runner reviews, and how to sign up.
When you view a race, you’ll also find contact info if you’re having problems with your registration or need to contact the race directors.
January 2020
| Sat Jan 25 | F^3 Lake Half Marathon | Chicago IL |
February 2020
| Sat Feb 8 | Fly with the Eagles Half Marathon | Marion IL |
| Sat Feb 8 | Iceman Half Marathon & Relay | Springfield IL |
March 2020
| Sun Mar 15 | Bolingbrook St. Paddy's Half Marathon & 5K | Bolingbrook IL |
| Sun Mar 15 | March Madness Half Marathon | Cary IL |
| Sat Mar 21 | Alton Half Marathon & 5K | Alton IL |
| Sat Mar 28 | Southern Illinois Spring Classic Half Marathon & 5K | Lawrenceville IL |
April 2020
| Sat Apr 4 | Lincoln Presidential Half Marathon | Springfield IL |
| Sat Apr 11 | Bunny Wabbit Run Half Marathon 10K & 5K | Libertyville IL |
| Sat Apr 18 | Allerton Trails Half Marathon & 10K | Monticello IL |
| Sat Apr 18 | Riverboat Series Marathon Half Marathon 10K & 5K – Day 7 | Vienna IL |
| Sat Apr 18 | Sly Fox Half Marathon 10K & 5K | St. Charles IL |
| Sat Apr 25 | Illinois Marathon Half Marathon & 10K | Champaign IL |
May 2020
| Sat May 16 | Gold Star Mission Run for the Fallen Half Marathon | Rockford IL |
| Sun May 17 | Chicago Spring Half Marathon & 10K | Chicago IL |
| Sun May 17 | Chicagoland Spring Marathon & Half Marathon | Schaumburg IL |
| Sun May 31 | Pure Pikermi Half Marathon & Relay | Aurora IL |
June 2020
| Sun Jun 14 | Chi Town Half Marathon & 10K | Chicago IL |
| Sun Jun 14 | Naperville Women's Half Marathon & 5K | Naperville IL |
July 2020
| Sun Jul 19 | Rock 'n' Roll Chicago Half Marathon | Chicago IL |
August 2020
| Sat Aug 1 | Mahomet Half Marathon 10K & 5K | Mahomet IL |
September 2020
| Sat Sep 12 | Hidden Gem Half Marathon | Flossmoor IL |
| Sun Sep 13 | Illinois Valley Striders Half Marathon | Peoria IL |
| Sun Sep 13 | Naperville Trails Half Marathon | Naperville IL |
| Tue Sep 15 | Heartland Series Marathon Half Marathon 10K & 5K – Day 4 | Fulton IL |
| Sun Sep 20 | Fox Valley Marathon Half Marathon & 20-Mile | St. Charles IL |
| Sat Sep 26 | Stone Bridge Half Marathon & 5K | Roscoe IL |
| Sun Sep 27 | Alpine Races Half Marathon & 5K | Lake Zurich IL |
| Sun Sep 27 | Chicago Half Marathon & 5K | Chicago IL |
| Sun Sep 27 | Quad Cities Marathon Half Marathon 5K & Relay | Moline IL |
October 2020
| Sat Oct 3 | Prairie State Half Marathon & 10K | Long Grove IL |
| Sat Oct 10 | Des Plaines River Trail Marathon Half Marathon & 50-Mile | Lincolnshire IL |
| Sun Oct 11 | Whiskeydaddle Marathon Half Marathon & Relay | Peoria IL |
| Sat Oct 17 | Country Sole Half Marathon 10K & 5K | Chicago IL |
| Sun Oct 18 | Naperville Half Marathon & 5K | Naperville IL |
| Sat Oct 24 | Beach to Brewery Half Marathon | Manteno IL |
| Sat Oct 31 | Galena River Fall Half Marathon & 8K | Galena IL |
| Sat Oct 31 | H^3 Halloween Half Marathon & 5K | Chicago IL |
November 2020
| Sun Nov 8 | Four Legged Running Half Marathon 10K & 5K | Mascoutah IL |
| Sun Nov 8 | Ooh La La Chocolate Half Marathon & 5K | Geneva IL |
| Sat Nov 28 | Schaumburg Half Marathon & 5K Turkey Trot | Schaumburg IL |
December 2020
| Sat Dec 12 | Viking Dash Trail Run Half Marathon 10K & 5K – Chicago | Crystal Lake IL |
