Run Woodstock

SEP
10-12
2027
Multi-distance trail event at Woodstock Camp near Gregory, MI featuring looped single-track courses, aid stations, camping, and training run opportunities.
10-12 Sep 2027
100 miles 100 kilometers 50 miles 50 kilometers 26 miles 13 miles 5 miles 5 kilometers

Always double-check with the organizer's website! This page may contain affiliate links.

Run Woodstock - Woodstock Camp, Gregory MI

Run Woodstock is a multi-distance trail event held September 10-11, 2027 at Woodstock Camp, 20120 Bartell Rd., Gregory, MI. Races use a repeat 16.6 mile loop that runs clockwise and is composed primarily of single-track trail with short gravel stretches and occasional paved road crossings. There will be no traffic control on road crossings; participants are responsible for their own safety.

Distances include:

  • 100 Mile 6 loops of the 16.6 mile loop
  • 100K 4 loops with shortcuts
  • 50 Mile 3 loops
  • 50K 2 loops
  • Marathon 2 loops
  • Half Marathon single loop
  • 5 Mile single loop and several 5K options

Aid for ultras is placed approximately every 3–5 miles and locations include Hog Farm, Food for Love, Bethel Woods, and Rosemary Forest. Hog Farm and Food for Love provide hot food; other stations offer drinks, gels, snacks, salt, and basic supplies. The event is cupless for all distances; participants must carry their own drinking vessel.

Ultra rules include time limits, mandatory cutoffs, and possible event switching (for example, 100 mile entrants may be moved to 100K under pacing rules). Pacers are permitted for the longer ultramarathon distances after a specified number of loops, must wear pacer bibs, and are not eligible for finisher awards. Training runs and weekend camping are offered; training run participation is free for registered entrants and has a fee for nonregistered participants. Visit the organization's website for the most recent information.

Events nearby

Sprint orienteering on U Mich North Campus with two advanced and one beginner course, free entry and an on-campus start at the Grove volleyball court.
Fall trail running in Waterloo Recreation Area near Chelsea, Michigan on November 7, 2026 with loop courses, aid stations, awards, and a post race bonfire and beer garden.
Orienteering at Waterloo HQ with multiple course lengths across ridges, prairie, and woodland, plus on-site loaner compasses and per-start group pricing.
Orienteering event at Hudson Mills on November 21, 2026, run as a two hour score format with further course details to be announced.
Add Event
Help us complete the calendar!
  • Distance is at least 5 km
  • Event has a website or Facebook page
Website
Optional: Please provide your e-mail address if we may contact you.
Report a change
We will only update the data if the information is also on the website.