Illinois Obstacle Race Calendar 2025-2026

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Explore the best obstacle runs in Illinois for 2025-2026! Our updated list features 259 exciting races across the region. Find your next race in Illinois below and join the running community at these great events!

March 2025
Mar
9
Sunday

Top of the Morning 5K Run/Walk

5 km
Mar
15
Saturday

Muddy Shamrock @ The Forge

Trail Run 6 mi 13 mi
Mar
15
Saturday

Shamrock Beer Run & BrewFest Chicago

5 km
Mar
15
Saturday

Shorewood Shuffle

5 km
Mar
15
Saturday

Run Sob Run

5 km
Mar
15
Saturday

Lucky Dog 5K - Rolling Meadows

5 km
Mar
15
Saturday

Kennekuk Road Runners - Mountain Goat

5 km 10 km 15 km
Mar
15
Saturday

Dublindee Kilted 5K Race

5 km
Mar
15
Saturday

McHenry Kiwanis Club Shamrock Shuffle

5 km
Mar
15
Saturday

Footsteps for Families 5k

5 km 4 mi
Mar
15
Saturday

Waterloo Citizens for a Pool St. Paddy's Day 5K

5 km
Mar
15
Saturday

St. Patrick's Day Run - Hampshire

5 km
Mar
15
Saturday

Friends of Saline County Animal Control 5K

5 km
Mar
15
Saturday

Shamrock Beer Run - Rockford

5 km
Mar
15
Saturday

Shamrock Shuffle 5K - Centralia

5 km
Mar
15
Saturday

Lucky Leprechaun 5K - Swansea

5 km
Mar
16
Sunday

Deer Park St. Paddy's 10K Run/Walk

5 km 10 km
Mar
16
Sunday

March Madness Half Marathon

13 mi
Mar
16
Sunday

St. Patrick's Day Run Bloomington

5 km
Mar
22
Saturday

Skunk Ape 806/314 Trail Race

Trail Run 3 hr 8 hr
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