Running races in or near Seneca, IL
Marathons, 1-milers, 5Ks, half-marathons, 10Ks & more
See below for a frequently-updated, comprehensive list of upcoming running events in the local Seneca, 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.
Muddy Dash - Standard Registration
Organization: Viral Run
Date of Race: 06-28-2025
Description: Event details and schedule
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Muddy Dash - VIP Registration 💎
Organization: Viral Run
Date of Race: 06-28-2025
Description: Event details and schedule
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Muddy Dash - Value Registration
Organization: Viral Run
Date of Race: 06-28-2025
Description: Event details and schedule
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Muddy Dash | Chicago | June 28, 2025
Organization: Viral Run
Date of Race: 06-28-2025
Description: Event details and schedule
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Complete list of running events in and near Seneca, IL: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.
More information about Seneca
About Seneca
Seneca (IL) is a village in LaSalle County with an estimated population of 2,371.[4]
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Did you know?
Historically, more marathons are run in the month of October than any other month (in the U.S.).
