84 Upcoming Races Near Lake Forest, IL in September, 2026

Diplo's Run Club Chicago

Chicago, IL

Saturday, October 3rd, 2026

Featured

Code:FTR10

View details for race Diplo's Run Club Chicago

Naperville Trails Half Marathon & 10K

Wheaton, IL

Saturday, September 5th, 2026

Half

10K

View details for race Naperville Trails Half Marathon & 10K

There Is A Will, There Is A Way 5K

Downers Grove, IL

Saturday, September 5th, 2026

Trail

View details for race There Is A Will, There Is A Way 5K

Always in Our Hearts 5K

Chicago, IL

Saturday, September 5th, 2026

View details for race Always in Our Hearts 5K

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Time and a Half Relay & 5K

Chicago, IL

Sunday, September 6th, 2026

View details for race Time and a Half Relay & 5K

2026 Crystal Lake Half Marathon & 12K

Crystal Lake, IL

Sunday, September 6th, 2026

Half

View details for race 2026 Crystal Lake Half Marathon & 12K

Lake Geneva Wine Run 5k

Lake Geneva, WI

Monday, September 7th, 2026

View details for race Lake Geneva Wine Run 5k

Woodland ROAR Run

Gurnee, IL

Friday, September 11th, 2026

1 Mile

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The Hidden Gem Half Marathon 2026

Flossmoor, IL

Saturday, September 12th, 2026

Half

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2K Glow Run/Walk

Glen Ellyn, IL

Saturday, September 12th, 2026

View details for race 2K Glow Run/Walk

Itasca Oktoberfast 5K

Itasca, IL

Saturday, September 12th, 2026

Fast

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Thin Mint Sprint 2026

Fox River Grove, IL

Saturday, September 12th, 2026

1 Mile

View details for race Thin Mint Sprint 2026

Tunnel to Towers Climb - Chicago, IL

Chicago, IL

Saturday, September 12th, 2026

View details for race Tunnel to Towers Climb - Chicago, IL

Chicago Gospel Run 2026

Chicago, IL

Saturday, September 12th, 2026

View details for race Chicago Gospel Run 2026

9/11 Heroes Run - Chicago, Illinois

South Barrington, IL

Saturday, September 12th, 2026

1 Mile

View details for race 9/11 Heroes Run - Chicago, Illinois

Pirate's Booty

St. Charles, IL

Saturday, September 12th, 2026

10K

Trail

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Ana Banana 5k & Fun Run

Skokie, IL

Saturday, September 12th, 2026

1 Mile

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Ana Banana 5k & Fun Run

Morton Grove, IL

Saturday, September 12th, 2026

1 Mile

View details for race Ana Banana 5k & Fun Run

Volunteer Registration - Gospel Run 2026

Chicago, IL

Saturday, September 12th, 2026

View details for race Volunteer Registration - Gospel Run 2026

Fit Forward 5K Run/Walk

Des Plaines, IL

Saturday, September 12th, 2026

View details for race Fit Forward 5K Run/Walk

Healthy Kids Running Series Fall 2026 - Lombard...

Lombard, IL

Sunday, September 13th, 2026

View details for race Healthy Kids Running Series Fall 2026 - Lombard/Glen Ellyn, IL

Run for Tomorrow 5K

Elburn, IL

Sunday, September 13th, 2026

View details for race Run for Tomorrow 5K

Santa Maria del Popolo 5K Run/Walk

Mundelein, IL

Sunday, September 13th, 2026

View details for race Santa Maria del Popolo 5K Run/Walk

Healthy Kids Running Series Fall 2026 - Buffalo...

Buffalo Grove, IL

Sunday, September 13th, 2026

View details for race Healthy Kids Running Series Fall 2026 - Buffalo Grove, IL

El Grito 5K Family Run/Walk

Chicago, IL

Sunday, September 13th, 2026

View details for race El Grito 5K Family Run/Walk

4th Annual Run for the Parks! 5K Run, Walk or Roll

Chicago, IL

Sunday, September 13th, 2026

1 Mile

Trail

View details for race 4th Annual Run for the Parks! 5K Run, Walk or Roll

Gift of Hope Community Foundation 5K Run, Walk ...

Glen Ellyn, IL

Sunday, September 13th, 2026

1 Mile

View details for race Gift of Hope Community Foundation 5K Run, Walk & Roll

Healthy Kids Running Series Fall 2026 - Graysla...

Grayslake, IL

Sunday, September 13th, 2026

View details for race Healthy Kids Running Series Fall 2026 - Grayslake, IL

Healthy Kids Running Series Fall 2026 - Hoffman...

Hoffman Estates, IL

Sunday, September 13th, 2026

View details for race Healthy Kids Running Series Fall 2026 - Hoffman Estates/Palatine, IL

Healthy Kids Running Series Fall 2026 - Napervi...

Naperville, IL

Sunday, September 13th, 2026

View details for race Healthy Kids Running Series Fall 2026 - Naperville, IL

Carl Sandburg 5K Run/Walk

Orland Park, IL

Sunday, September 13th, 2026

View details for race Carl Sandburg 5K Run/Walk

Healthy Kids Running Series Fall 2026 - Park Ri...

Park Ridge, IL

Sunday, September 13th, 2026

View details for race Healthy Kids Running Series Fall 2026 - Park Ridge, IL

RUN FOR UKRAINE

Wheeling, IL

Sunday, September 13th, 2026

View details for race RUN FOR UKRAINE

Women for Tomorrow 5k

Burlington, WI

Sunday, September 13th, 2026

View details for race Women for Tomorrow 5k

Miles for Manufacturing 5k and 1 Mile Walk

Chicago, IL

Wednesday, September 16th, 2026

1 Mile

View details for race Miles for Manufacturing 5k and 1 Mile Walk

Divas Chicago Half Marathon & 5k

Chicago, IL

Saturday, September 19th, 2026

Half

View details for race Divas Chicago Half Marathon & 5k

Heritage Fest 10k

West Dundee, IL

Saturday, September 19th, 2026

10K

1 Mile

View details for race Heritage Fest 10k

Raising Sickle Cell Awareness 1 Mile At A Time!...

Chicago, IL

Saturday, September 19th, 2026

View details for race Raising Sickle Cell Awareness 1 Mile At A Time! Annual 1K/5K Walk, Jog or Run for a Cure!

Fleet Feet Training - The Long Run

Chicago, IL

Saturday, September 19th, 2026

Ultra

View details for race Fleet Feet Training - The Long Run

Run Like A Diva

Chicago, IL

Saturday, September 19th, 2026

Half

View details for race Run Like A Diva

2026 - 2nd Annual HBCU Run & Brunch

Chicago, IL

Saturday, September 19th, 2026

10K

View details for race 2026 - 2nd Annual HBCU Run & Brunch

Blue Bridges 5K

Blue Island, IL

Saturday, September 19th, 2026

View details for race Blue Bridges 5K

Sunbeams Uganda 5k

Crystal Lake, IL

Saturday, September 19th, 2026

View details for race Sunbeams Uganda 5k

Run Like a Diva

Chicago , IL

Saturday, September 19th, 2026

Half

View details for race Run Like a Diva

Still Standing

Elgin, IL

Saturday, September 19th, 2026

1 Mile

View details for race Still Standing

Busse Woods 20 Miler - 7:00a.m.

Elk Grove Village, IL

Saturday, September 19th, 2026

Ultra

View details for race Busse Woods 20 Miler - 7:00a.m.

Golden Harvest Half Marathon & 5k/10k - Milwaukee

South Milwaukee, WI

Saturday, September 19th, 2026

1 Mile

10K

View details for race Golden Harvest Half Marathon & 5k/10k - Milwaukee

12th Annual Christmas Without Cancer 5k Run/Wal...

Evergreen Park, IL

Saturday, September 19th, 2026

View details for race 12th Annual Christmas Without Cancer 5k Run/Walk (In-Person OR Virtual)

Run for the STARS 2026

Wheaton, IL

Saturday, September 19th, 2026

View details for race Run for the STARS 2026

Better Than Yesterday 5K

Aurora, IL

Sunday, September 20th, 2026

View details for race Better Than Yesterday 5K

RACE TO WRIGLEY 5K CHARITY RUN PRESENTED BY AbbVie

Chicago, IL

Sunday, September 20th, 2026

View details for race RACE TO WRIGLEY 5K CHARITY RUN PRESENTED BY AbbVie

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