Every Half Marathon in Illinois in September 2026, all 5 of them, sorted by date. Dates, entry fees, finish-time stats from past results, and start-line maps.
Common Questions About Running a September Half Marathon in Illinois
When in September are most Half Marathon races held?
The busiest weekend in Illinois is September 26 and September 27, with 5 Half Marathon races on those two days, and the single busiest day is Saturday, September 26 with 4. Every one of them is on a Saturday or a Sunday.
How much does a September Half Marathon cost to enter?
The typical entry is $30, with paid entries running from $22 up to $120. Entry fees climb as race day gets closer, so the same race is usually cheapest the week it opens.
Half Marathon Races in Other Months
August and October sit either side of September, which is where most people look next when a date does not fit.
