Running races in or near Waterloo, IL
Marathons, 1-milers, 5Ks, half-marathons, 10Ks & more
See below for a frequently-updated, comprehensive list of upcoming running events in the local Waterloo, IL area. Races listed here include both walking and running events of various distances — from 1-milers, to 5Ks, to marathons, and everything else in between.
Running-5K - Individual Age group/open
Organization: St. Clare Oktoberfest
Date of Race: 09-27-2025
Description: Event details and schedule
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Howling Habitat 5K - Kids 9-12
Organization: O'Fallon's Habitat For Humanity
Date of Race: 10-25-2025
Description: Habitat for Humanity is hosting our 10th annual 5K run October ...
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Howling Habitat 5K
Organization: O'Fallon's Habitat For Humanity
Date of Race: 10-25-2025
Description: Habitat for Humanity is hosting our 10th annual 5K run October ...
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*CANCELLED* Missouri 2025
Organization: Tough Mudder US
Date of Race: 08-16-2025
Description: Tough Mudder is more than just an obstacle course. Built on ...
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Howling Habitat 5K - Adults
Organization: O'Fallon's Habitat For Humanity
Date of Race: 10-25-2025
Description: Habitat for Humanity is hosting our 10th annual 5K run October ...
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Howling Habitat 5K - Kids 8 and under
Organization: O'Fallon's Habitat For Humanity
Date of Race: 10-25-2025
Description: Habitat for Humanity is hosting our 10th annual 5K run October ...
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Howling Habitat 5K - Howling Habitat 5K
Organization: O'Fallon's Habitat For Humanity
Date of Race: 10-25-2025
Description: Habitat for Humanity is hosting our 10th annual 5K run October ...
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Oktoberfest 5K Rennen & Weg 2025
Organization: St. Clare Oktoberfest
Date of Race: 09-27-2025
Description: Event details and schedule
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Candy Rush Run
Organization: City of Belleville
Date of Race: 08-16-2025
Description: DescriptionCalling all young runners! Join us for our very first Youth-Only ...
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Pizza, Pop, & Puzzles (nov. 21)
Organization: Fairview Heights Parks and Recreation
Date of Race: 11-21-2025
Description: DescriptionHave a fun filled evening with puzzles and pop! Form a ...
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Walking-5K - Individual Age group/open
Organization: St. Clare Oktoberfest
Date of Race: 09-27-2025
Description: Event details and schedule
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Pizza, Pop, & Puzzles (oct 24.)
Organization: Fairview Heights Parks and Recreation
Date of Race: 10-24-2025
Description: DescriptionHave a fun filled evening with puzzles and pop! Form a ...
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Pizza, Pop, & Puzzles (Jan. 23.)
Organization: Fairview Heights Parks and Recreation
Date of Race: 01-23-2026
Description: DescriptionHave a fun filled evening with puzzles and pop! Form a ...
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5k Foot Pursuit
Organization: Fairview Heights Parks and Recreation
Date of Race: 10-05-2025
Description: DescriptionThe Fairview Heights police department 5k run/walk at The REC is ...
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Running-Kids Fun Run (10 an Under) - Individual ...
Organization: St. Clare Oktoberfest
Date of Race: 09-27-2025
Description: Event details and schedule
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2025 Puzzle Palooza: Halloween
Organization: City of Belleville
Date of Race: 10-17-2025
Description: DescriptionGrab your friends or family and join us for this edition ...
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October 17th
Organization: The Wilson School
Date of Race: 10-17-2025
Description: DescriptionGrab your friends or family and join us for this edition ...
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Complete list of running events in and near Waterloo, IL: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.
More information about Waterloo
About Waterloo
Waterloo (IL) is a city in Monroe County with an estimated population of 9,811.[4]
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Did you know?
In 2014, 57% of marathon finishers in the U.S. were men; women made up 43% of finishers.
