Illinois · Race calendar

Running Races in Illinois

Every upcoming running race in Illinois, all 468 of them. 5Ks, 10Ks, half marathons and marathons with dates, pricing, finish-time stats from past results, and start-line maps.

468 upcoming races · 169 with finish-time stats

5K 36810K 80Half Marathon 56Marathon 5Ultra 2
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By the numbers

The Biggest and Longest-Running

The Illinois races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.

Largest field1,367 finishersDim Sum & Then Some: The Uptown 5K/10K & Kids Dashin the 5KLongest-running48th year48th Annual Oglesby Turkey Trotannual tradition

Races by City in Illinois

Aurora 5Belleville 7Bloomington 4Chicago 63Decatur 4Downers Grove 6Elgin 4Elk Grove Village 9Glen Ellyn 3Hoffman Estates 3Hudson 3Joliet 3Marion 4Mattoon 4Normal 5Oswego 3Palatine 5Rock Falls 3Rockford 5Shorewood 6Springfield 8Urbana 4Wheaton 7Wheeling 3

Soonest Races in Illinois

468 total
Fri, Jul 31, 2026Run Mahomet Mahomet, IL3.1KHalf Marathon5KFrom $15Details Sat, Aug 1, 2026JANET R. NOBLITT MOSQUITO CHASE 5K Hutsonville, IL5KFrom $20Details Sat, Aug 1, 2026Tom Short 5K Shelbyville, IL5K1 MileFrom $25Details Sat, Aug 1, 2026Kaskaskia Blue Classic 5k 2026 Centralia, IL5K1 MileFrom $15Details Sat, Aug 1, 2026Dim Sum & Then Some: The Uptown 5K/10K & Kids Dash Chicago, IL10K5KFrom $55Details Sat, Aug 1, 20262026 Johnsonville Community Days 5K Run/Walk Johnsonville, IL5KFrom $25Details Sat, Aug 1, 2026PSRR Free 5K Run/Walk Shorewood, IL5KFreeDetails Sat, Aug 1, 2026Tiskilwa Pow Wow 5K 2026 Run/Walk Tiskilwa, IL5KFrom $30Details Sat, Aug 1, 2026College of DuPage 5k & Track Fest Glen Ellyn, IL5K400m10.25m6.3mFrom $30Details Sat, Aug 1, 2026Lake Land College 5k Mattoon, IL5KFrom $30Details Sat, Aug 1, 2026AOTK Nourish the Nations 5K Color Run/Walk Geneseo, IL5KFrom $30Register Sat, Aug 1, 2026Summer's Last Kick Oswego, IL1 Mile5KFrom $20Details

How we calculate these stats: RunSesh calculates these figures from the most recent published results of past editions, sourced from RunSignup. We show aggregates only: field size, winning and median times, and the cutoff. We never publish individual finisher tables. Last updated Jul 27, 2026.

Common Questions About Racing in Illinois

Which Illinois cities have the most races?

Chicago (63), Elk Grove Village (9), Springfield (8), Wheaton (7) have the most upcoming races in Illinois. If you are willing to travel an hour or two, those give you the widest choice of dates and distances.

What race distances can I run in Illinois?

Illinois has 5K (368), 10K (80), Half Marathon (56), Marathon (5), Ultra (2). Pick a distance to narrow the list to races you would actually enter.

When is race season in Illinois?

September is the busiest month for races in Illinois, with 145 of the 468, followed by August with 94. If you are flexible on the date, that is the quickest way to narrow things down.

Are Illinois races beginner-friendly?

Yes, for the most part. Across the 169 races in Illinois with published results, the typical median finish is around 35:19, which means half of every one of those fields came in slower than that. Recreational runners and walk-runners are the bulk of these fields, not the exception.

Are there trail races in Illinois?

Yes, 28 races around Illinois get you off the pavement: 19 are trail races, and 9 mix road and trail. Surfaces are not always published, so it is worth checking a specific race before you register.