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Races in Byron, IL

Running races in or near Byron, IL

Marathons, 1-milers, 5Ks, half-marathons, 10Ks & more

See below for a frequently-updated, comprehensive list of upcoming running events in the local Byron, 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.

Road Runner Sports

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

Road Runner Sports

Complete list of running events in and near Byron, IL: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.


More information about Byron

About Byron

Byron (IL) is a city in Ogle County with an estimated population of 3,753.[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.

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