Running races in Illinois in Mar 2027

27 races in date order

Oak Forest Fleadh
Sat 6 Mar 2027 · Oak Forest, IL · 5K
A St. Patrick's week 5K named for an Irish festival

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Zoo Stampede
March 2027 · Bloomington, IL · Marathon · Half Marathon · 10K · 5K
Loops past the zoo in historic Miller Park

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Manhattan Irish Fest Parade 5k
Sat 6 Mar 2027 · Manhattan, IL · 5K

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"Top of the Morning" 5K Run/Walk & Kids Fun Run
March 2027 · Shiloh, IL · 5K · Kids Fun Run

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Castle Ridge Shamrock Shuffle 5K
March 2027 · Centralia, IL · 5K
Starts at Castle Ridge resort on Lake Centralia

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Shorewood Shuffle
Sat 13 Mar 2027 · Shorewood, IL · 5K
Flat loop through Four Seasons Park in Shorewood

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Friends of Saline County Animals - St Patrick's Day 5K
March 2027 · Harrisburg, IL · 5K

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Blarney Blitz
March 2027 · Peoria, IL · 5K
Along the Illinois River on Peoria's Riverfront Trail

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Muddy Shamrock @ The Forge
Sat 13 Mar 2027 · Lemont, IL · Half marathon · 10K
Woods, mud and roots at The Forge adventure park

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SOB Run for CASA of Kendall County
Sat 13 Mar 2027 · Yorkville, IL · 5K

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Shamrock Beer Run & BrewFest Chicago at Busse Woods
Sat 13 Mar 2027 · Rolling Meadows, IL · 5K
Loops through Busse Woods forest preserve

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Naperville Sunrise Rotary's St. Paddy's Day 5K
March 2027 · Naperville, IL · 5K

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Deer Park St. Paddy's 10K & 5K
Sun 14 Mar 2027 · Deer Park, IL · 10K · 5K

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Kelly's Fun Run
March 2027 · Quincy, IL · 5K
A St. Patrick's tradition starting at Kelly's Tavern

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March Madness Half Marathon
Sun 14 Mar 2027 · Cary, IL · Half Marathon
Dubbed Northern Illinois' toughest half marathon

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Plainfield PaddyDay Mile
March 2027 · Plainfield, IL · 1 Mile
Winner leads the Hometown Irish Parade

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DUbliNDEE Kilted 5K
March 2027 · East Dundee, IL · 5K
Runners don kilts for this Dundee-area 5K

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2026 Running O' The Green 8K
March 2027 · Tinley Park, IL · 8K
Starts at Tinley Park's Tony Bettenhausen Rec Center

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Kick'n The Kilt 5K & 8K
Sat 20 Mar 2027 · St. Charles, IL · 8K Run · 5K · Virtual 5K

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Kennekuk Road Runners - Mountain Goat
March 2027 · Oakwood, IL · 15K · 10K · 5K

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Hop Your Bundts Off Fun Run 5k and Easter Egg Hunt
March 2027 · Bloomington, IL · 5K

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American Bottoms 113
Sat 20 Mar 2027 · Columbia, IL · 113 Mile · 56 Mile
110 or 55 miles tracing the Mississippi River flats

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Shamrock Shuffle
Sun 21 Mar 2027 · Chicago, IL · 8K Run · 2-Mile Walk · The Mile
A Chicago tradition runners return to year after year

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Lori's Walleye Run 5K
March 2027 · Spring Valley, IL · 5K
Certified 5K in Spring Valley since 1985

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Spring Break Run
March 2027 · Springfield, IL · 10K · 5K

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Rend Lake Marathon
Sat 27 Mar 2027 · Benton, IL · Marathon · 1/2 Marathon · 1/4 Marathon
Rolling roads and paved paths around Rend Lake, Illinois

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Footsteps for Families: 5k, Walk & Kids Run
March 2027 · Loves Park, IL · 5K · 5k Walk (untimed) · Kid's Fun Run/Walk

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← Illinois Oct Nov Dec Jan 2027 Feb 2027 Apr 2027 May 2027 Jun 2027 Jul 2027 Aug 2027 Sep 2027 Oct 2027

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Every race here is published by its organiser; RunCalendar checks the date and the entry window against the organiser's own page and rebuilds this calendar every night. A confirmed date shows its day; a provisional one shows only its month. Last updated 22 October 2026.