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Races in Seneca, IL

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.

Fleet Feet Sports

Muddy Dash - Exclusive VIP Registration- Regular Price ...

Organization: Viral Run

Date of Race: 06-28-2025

Description: Event details and schedule

Marathon - Individual Registration

Organization: Run Starved Rock Country

Date of Race: 05-10-2025

Description: Now in its 12th year, (11th running, have to count Covid) ...

Half Marathon - NO SHIRT Included - Individual ...

Organization: Run Starved Rock Country

Date of Race: 05-10-2025

Description: Now in its 12th year, (11th running, have to count Covid) ...

Half Marathon - Individual Registration

Organization: Run Starved Rock Country

Date of Race: 05-10-2025

Description: Now in its 12th year, (11th running, have to count Covid) ...

Muddy Dash - Value Registration- Regular Price $74.95

Organization: Viral Run

Date of Race: 06-28-2025

Description: Event details and schedule

Muddy Dash | Chicago

Organization: Viral Run

Date of Race: 06-28-2025

Description: Event details and schedule

Marathon - NO SHIRT Included - Individual ...

Organization: Run Starved Rock Country

Date of Race: 05-10-2025

Description: Now in its 12th year, (11th running, have to count Covid) ...

Run SRC 5K - Individual Registration

Organization: Run Starved Rock Country

Date of Race: 05-10-2025

Description: Now in its 12th year, (11th running, have to count Covid) ...

2025 Starved Rock Country Marathon and Half Marathon

Organization: Run Starved Rock Country

Date of Race: 05-10-2025

Description: Now in its 12th year, (11th running, have to count Covid) ...

Family Movie Night: 'Migration'

Organization: Forest Preserve District of Will County

Date of Race: 05-23-2025

Description: DescriptionIt's movie night at Four Rivers! Follow ...

Spring Cleanup

Organization: Forest Preserve District of Will County

Date of Race: 04-13-2025

Description: DescriptionCelebrate Earth Day early this year by ...

Lock Laces

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?

There were at least 768 marathons scheduled in the United States and Canada in 2016.

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