Illinois

Illinois Running Calendar 2026-2027

Monthly updates for Illinois

Get new running races (and updates) in your inbox every month.

Explore the best running races in Illinois for 2026-2027! Our updated list features 671 exciting races across the region. Find your next race in Illinois below and join the running community at these great events!

Half Marathons Marathons Trail Runs Triathlons

September 2026

Sep

Solidarity Sidekick down Route 66 - Lincoln

Lincoln, Illinois

2 mi 7 km

Solidarity Sidekick down Route 66 - Lincoln

Run or walk a 6.6K course past iconic Route 66 landmarks in Lincoln to support ALS awareness and show solidarity with a cross state journey.

Sep

Solidarity Sidekick down Route 66 - Williamsville

Williamsville, Illinois

2 mi 7 km

Solidarity Sidekick down Route 66 - Williamsville

Join a 6.6K run or walk through Williamsville on historic Route 66 to support ALS awareness and earn custom series charms for your medal.

Sep

Writers Who Run - Chicago

Chicago, Illinois

3 mi

Sep-Oct

10-1

R2P Oktoberfest Series - Tinley

Orland Hills, Illinois

Sep

Rock Springs Demo Run/Walk

Decatur, Illinois

Road Race Trail Run 3 mi

Monthly updates for Illinois

Get new running races (and updates) in your inbox every month.

Sep

Solidarity Sidekick Down Route 66 - Springfield

Springfield, Illinois

2 mi 7 km

Solidarity Sidekick Down Route 66 - Springfield

Join a meaningful 6.6K run or 2.1 mile walk through Springfield historic district to support the ALS community along iconic Route 66.

Sep

Woodland ROAR Run

Gurnee, Illinois

Road Race Trail Run 5 km

Sep

Elwood Community Days 5k Run & Walk

Elwood, Illinois

5 km

Sep

11-13

Fr - Su

Hobo Trail Runs

Cherry Valley, Illinois

Trail Run 10 km 25 km ... 60 km 85 km

Sep

Popcorn Day 5K Run, Walk & Kids Fun Run

Ridgway, Illinois

5 km

Sep

Solidarity Sidekick down Route 66 - Divernon

Divernon, Illinois

2 mi 7 km

Solidarity Sidekick down Route 66 - Divernon

A 6.6K run/walk at Divernon’s restored Route 66 gas station with a 2.1 mile shared Sidekick segment and a virtual 6.6K option supporting ALS awareness.