When in May are most half marathons held?
The busiest weekend in Illinois is May 8 and May 9, with 3 of them. Every one of them is on a Saturday or a Sunday.
Race calendar · May 2027 · Illinois
Half Marathons in Illinois in May 2027
Every Half Marathon in Illinois in May 2027, all 6 of them, sorted by date. Dates, entry fees, finish-time stats from past results, and start-line maps.
When in May
The May Race Weekends
Half marathons are not spread evenly across May. Here is how the calendar actually falls, weekend by weekend, which is the part worth knowing before you book a trip or plan a taper around one.
By the numbers
The Biggest Field
The largest field of any May Half Marathon in Illinois, from the most recent published results.
Illinois Half Marathons by City in May
All Half Marathons in Illinois in May
6 total Sun, May 2, 2027Chicagoland Spring Marathon, Half Marathon & 10K Schaumburg, ILFrom $70Details Sat, May 8, 2027Starved Rock Country Marathon Ottawa, ILFrom $90Details Sat, May 8, 2027Hometown Half Marathon/5K/10K - Greater Chicago Elk Grove Village,, ILFrom $50Details Sat, May 8, 2027Run for Chocolate 5k/10k/13.1 CHICAGO/EVANSTON Chicago, ILFrom $45Register Sat, May 29, 2027SuperHeroes Run CHICAGO/EVANSTON Chicago, ILFrom $45Register Sat, May 29, 2027SuperHeroes Run SAN ANTONIO San Antonio, ILFrom $45Register