the overGRound marathon/relay
the overGRound marathon/relay logo

the overGRound marathon/relay

Grand Rapids, Michigan, United States View on map
Oct 24, 2026 – Oct 25, 2026 (America/New_York local time)
Running

About this race

The overGRound is a free, unsanctioned marathon and marathon relay through the city of Grand Rapids whose route showcases the variety of GR’s features and neighborhoods (beyond Butterworth and Millennium). This is an inclusive, supportive, and free running event celebrating community and a grassroots, no frills spirit of running and free fitness. It is a co-hosted event featuring the many wonderful running and fitness communities of Grand Rapids. Together, participating clubs can invite people out to run, cheer, and support runners on the course. The public is warmly welcomed to participate.

This will be the third running of the overGRound, the first (known) marathon held fully within GR city limits. Once again, it will be hosted by local participating clubs—to be announced soon! 

This year the overGRound will be held October 25, 2026 at 8am, starting and ending at Veterans Memorial Park. The [subject to updates!] carefully designed course passes many coffee shops, a variety of neighborhoods, cityscapes, and parks before returning to Veterans Memorial Park.

Whether you run the marathon, organize a team to run the relay, or just show up to support the runners, let’s make it once again a fun, unique, out-in-the-open Grand Rapids event that goes beyond the norm.

More details:

  • All paces welcome to participate, with every participant from last to first getting a welcome back at Veterans Park
  • This is mostly a self-supported event, but there will be wayfinding guidance, aid stations on course, and bikers and volunteers who will check in with runners
  • The marathon relay is open to any team configuration or leg distances; the coffee shops make good changepoints but "y’all do y’all" to complete the 26.2
  • We encourage you to bring your own bibs and have fun with them
  • The 2026 edition of the Participant Guide is not yet available—we will email you when it’s ready!
  • The Facebook event is HERE for reference
  • You are welcome to do any combination of the following: a) run the marathon, b) run as part of a relay marathon, or c) volunteer to help this event be a success, d) come out and cheer (just show up on the course, or at Veterans Park, on race morning). 
theoverGRound2026

Pick your distance

Running

Marathon

This is a (mostly) self-supported marathon on a course that is not closed to traffic. There will a number of aid stations along the route.

Oct 24, 2026 Marathon 8:00 AM
Free
Open

Typical race-day weather

Based on 15 years of Open-Meteo archive data for this event's race dates in Grand Rapids, plus the 3 days either side.

Temp (°C)
Minimum temperature (race-week average) 6.1° / Maximum temperature (race-week average) 13.7°
Feels Like (°C)
Minimum feels like — heat index / wind chill (race-week average) 3.0° / Maximum feels like — heat index / wind chill (race-week average) 13.1°
Peak wind (km/h)
Strongest wind of the day (race-week average)
19.5
Precip (mm)
Precipitation over the day (race-week average)
4.4mm
Humidity
Mean relative humidity (race-week average)
72.8%
Sunrise
Sunrise at the start line on October 24, 2026 (EDT)
Sunset
Sunset at the start line on October 24, 2026 (EDT)
Daylight
Hours between sunrise and sunset on race day
10h 38m

The sun rises at 8:07 AM and sets at 6:46 PM local time (EDT) in Grand Rapids on October 24, 2026 — 10h 38m of daylight.

Course

No course map published yet.

The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.

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Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.

  • Entries, prices, waves and inclusions — the event's official registration page
  • Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
  • Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
  • Comparisons and counts — Race Discovery calendar, 82 Grand Rapids events

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