Running races in or near Belvidere, IL
Marathons, 1-milers, 5Ks, half-marathons, 10Ks & more
See below for a frequently-updated, comprehensive list of upcoming running events in the local Belvidere, 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.
Tough Mudder Chicago 2025
Organization: Tough Mudder US
Date of Race: 08-23-2025
Description: Tough Mudder is more than just an obstacle course. Built on ...
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Saturday - August 23, 2025 - TM 15K ...
Organization: Tough Mudder US
Date of Race: 08-23-2025
Description: Tough Mudder is more than just an obstacle course. Built on ...
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Saturday - August 23, 2025 - TM 5K ...
Organization: Tough Mudder US
Date of Race: 08-23-2025
Description: Tough Mudder is more than just an obstacle course. Built on ...
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Saturday - August 23, 2025 - TM 5K ...
Organization: Tough Mudder US
Date of Race: 08-23-2025
Description: Tough Mudder is more than just an obstacle course. Built on ...
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Saturday - August 23, 2025 - Infinity Participant: ...
Organization: Tough Mudder US
Date of Race: 08-23-2025
Description: Tough Mudder is more than just an obstacle course. Built on ...
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Saturday - August 23, 2025 - TM 15K ...
Organization: Tough Mudder US
Date of Race: 08-23-2025
Description: Tough Mudder is more than just an obstacle course. Built on ...
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Saturday - August 23, 2025 - Spectator & ...
Organization: Tough Mudder US
Date of Race: 08-23-2025
Description: Tough Mudder is more than just an obstacle course. Built on ...
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Sunday - August 24, 2025 - Spectator & ...
Organization: Tough Mudder US
Date of Race: 08-23-2025
Description: Tough Mudder is more than just an obstacle course. Built on ...
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Saturday - August 23, 2025 - TM 5K ...
Organization: Tough Mudder US
Date of Race: 08-23-2025
Description: Tough Mudder is more than just an obstacle course. Built on ...
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Sunday - August 24, 2025 - TM 5K ...
Organization: Tough Mudder US
Date of Race: 08-23-2025
Description: Tough Mudder is more than just an obstacle course. Built on ...
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Sunday - August 24, 2025 - TM 15K ...
Organization: Tough Mudder US
Date of Race: 08-23-2025
Description: Tough Mudder is more than just an obstacle course. Built on ...
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Sunday - August 24, 2025 - TM 15K ...
Organization: Tough Mudder US
Date of Race: 08-23-2025
Description: Tough Mudder is more than just an obstacle course. Built on ...
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Sunday - August 24, 2025 - TM 5K ...
Organization: Tough Mudder US
Date of Race: 08-23-2025
Description: Tough Mudder is more than just an obstacle course. Built on ...
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Saturday - August 23, 2025 - TM 15K ...
Organization: Tough Mudder US
Date of Race: 08-23-2025
Description: Tough Mudder is more than just an obstacle course. Built on ...
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Saturday - August 23, 2025 - TM 15K ...
Organization: Tough Mudder US
Date of Race: 08-23-2025
Description: Tough Mudder is more than just an obstacle course. Built on ...
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Saturday - August 23, 2025 - TM 5K ...
Organization: Tough Mudder US
Date of Race: 08-23-2025
Description: Tough Mudder is more than just an obstacle course. Built on ...
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Complete list of running events in and near Belvidere, IL: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.
More information about Belvidere
About Belvidere
Belvidere (IL) is a city in Boone County with an estimated population of 25,585.[4]
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Did you know?
In 2014, there were more than 1,100 marathons and more than 541,000 finishers in the U.S.
