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the overGRound marathon/relay

📅 October 24, 2027 (estimated date)📍 Grand Rapids · United States

⚠️ 2027 edition: provisional information

The date is estimated from the 2026 edition (October 25, 2026), on the same day of the week. Courses, start times, fees and description are carried over from the previous edition: check them on the official website. This page will be updated as soon as the organizer publishes them.

Available distances

26.2 mi

About

the overGRound marathon/relay is a free, unofficial marathon (26.2 miles) and relay in Grand Rapids, Michigan, starting at 8 a.m. on October 25, 2026. Co-hosted by local running and fitness groups, it is built around grassroots inclusion: you can run solo, split the distance as a relay team or turn up to support. The route passes the city's main landmarks and finishes at Rosa Parks Circle, and the event is largely self-supported, with course signage and aid stations along the way.

Self-supported means you carry more of your own plan than at a big-city marathon, so rehearse your fueling on long runs and know where you will drink. All paces are welcome, which makes this a workable first marathon if you would rather not pay a large entry fee, and the relay is an easy way in for anyone not ready for the full distance. Making your own bib is part of the tradition.

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