Aug 12, 2026 · 6:00 PM · Cherry Valley, IL
Rockford Road Runners Members Picnic & Group Run
5K
- Price
- Free
5Ks in Illinois
Every upcoming 5K race we know about in Illinois. Where a detail isn't confirmed, we mark it unknown rather than guessing.
Race results
Where
When
Showing 24+ of 342 races · loading the full list…
Aug 15, 2026 · 8:00 AM · Olney, IL
2026 Father Jerry 5K
1M5K
- Price
- Free-$32.80
- Field size
- 125 · based on the organizer's entry cap
Aug 15, 2026 · 9:00 AM · Lena, IL
Lena Brew Run 5k
5K
- Price
- $18.49-$43.99
- Field size
- 10 · based on the organizer's entry cap
Aug 15, 2026 · 8:30 AM · Port Byron, IL
The Nick Teddy 5k Presented By Tug Fest-Illinois
5K
- Price
- $23.15-$44.35
Aug 15, 2026 · 7:00 AM · Pingree Grove, IL
Highlander Assault Obstacle Race
5K15K
- Price
- $96.40
- Field size
- 50 · based on the organizer's entry cap
Aug 15, 2026 · 7:00 AM · Elk Grove Village, IL
The Next Loop Endurance Series - Busse Woods
5K
- Price
- $107
Aug 15, 2026 · 8:00 AM · Mattoon, IL
5K Color Run/Walk Fundraiser
5Krolling hills
- Price
- $20
- Field size
- 150 · based on the organizer's entry cap
Aug 15, 2026 · 7:30 AM · Rockford, IL
RAMP River Run – 3K, 5K, & 1/2 Marathon Run
5KHalf MarathonCertified course · per organizer
- Price
- $22.20-$91.10
Aug 16, 2026 · 7:30 AM · Lake Zurich, IL
Alpine Races 5k and 10 Mile
1M5K10MCertified course · per organizer
- Price
- $6.30-$85.79
Aug 22, 2026 · 8:00 AM · Yorkville, IL
Au Sable Grove 5k fun run/walk - The 180 Run: Leaving the Past Behind
5K
- Price
- $25