Race Calendar in Illinois, United States

Calstrong Summer Smash 2026

New Lenox, Illinois, United States

May 9, 2026 (Sat)

Running

8K

Pioneer Spirit Triathlon - Sprint, Mini, & Challenge | 5k Run

Petersburg, Illinois, United States

May 9, 2026 (Sat) – May 16, 2026

Running

5K

Starved Rock Country Marathon

Ottawa, Illinois, United States

May 9, 2026 (Sat)

Running

Marathon Half-Marathon 10K 5K +2

Stars & Spikes: Totally Rad 5k

Lombard, Illinois, United States

May 9, 2026 (Sat)

Running

5K 1.6K

Glow Up & Show Up

Ullin, Illinois, United States

May 8, 2026 (Fri)

Donovan Color 5K & Bobcat Dash Run/Walk

Donovan, Illinois, United States

May 8, 2026 (Fri)

Running

5K 0.4K

Mother's Day 5K, 10K & Half Marathon

Lake Zurich, Illinois, United States

May 8, 2026 (Fri) – May 10, 2026

Running

5K 10K Half-Marathon

Amdocs Champaign 5k

Champaign, Illinois, United States

May 6, 2026 (Wed)

Running

5K

Unit 5K

Normal, Illinois, United States

May 3, 2026 (Sun)

Running

5K 1.6K

Run for BEER - Solemn Oath Brewery

Chicago, Illinois, United States

May 3, 2026 (Sun)

Running

5K

Chicagoland Spring Marathon, Half Marathon & 10K

Schaumburg, Illinois, United States

May 3, 2026 (Sun)

Running

Marathon Half-Marathon 10K +5

Tailwagger Trot

Lisle, Illinois, United States

May 3, 2026 (Sun)

Running

5K