Illinois · Race calendar

Running Races in Decatur, Illinois

Upcoming running races in and near Decatur, Illinois - 5Ks, 10Ks, half marathons and more, with dates, pricing, finish-time stats, start-line maps, and local run clubs to train with.

4 upcoming races · 2 with finish-time stats

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By the numbers

The Biggest and Longest-Running

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

Largest field187 finishers2026 Turkey Trotin the 5K

Thu, Sep 10, 2026Rock Springs Demo Run/Walk Decatur, IL3 MilesFreeRegister Sat, Sep 12, 2026Sand Creek Trail Run Decatur, IL4.4 Miles7.6 MilesFrom $35Details Fri, Oct 2, 2026Shoreline Classic Decatur, IL15K5KFrom $45Details Sat, Nov 21, 20262026 Turkey Trot Decatur, IL5K10K0.5 MilesFrom $35Details

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 Sep 10, 2026.

Common Questions About Racing in Decatur

When is race season in Decatur?

September is the busiest month for races in Decatur, with 2 of the 4. If you are flexible on the date, that is the quickest way to narrow things down.

Where can I train for a race in Decatur?

Browse Decatur run clubs on RunSesh to find a training group at your pace.

Are there trail races near Decatur?

Yes, one race around Decatur gets you off the pavement: 1 is a trail race. Surfaces are not always published, so it is worth checking a specific race before you register.