OPSF 50/50 Trail Race

MAR
20
2027
Trail races in Owen-Putnam State Forest with 50 mile, 50K, 14 mile and 10K options on a mostly single track lollipop course. Aid stations are cupless and runners must carry 20 oz of water.
Sat 20 Mar 2027
50 miles 50 kilometers 14 miles 10 kilometers

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

OPSF 50/50 Trail Race - Owen-Putnam State Forest, Poland, IN

OPSF 50|50 is a trail running event organized by the Indiana Trail Running Association in Owen-Putnam State Forest near Poland, Indiana. The event offers multiple distances:

  • 50 mile
  • 50K
  • 14 mile
  • 10K Trail Race

The course starts at Horse Campground and uses a 14-mile loop that is about 90% single track and horse trails with some fire road. The layout is a lollipop shape: a stick from Start/Finish to Aid A and a loop from Aid A through Aid B back to Aid A. Fifty mile runners complete three counterclockwise loops with an extra loop, 50K runners complete two loops plus a short bonus loop, and the 10K is one loop.

Aid stations do not provide cups; participants must be able to carry 20 ounces of water on their person at all times. Spring weather in Indiana can vary; past editions have seen winter storm conditions and warm dry days, so participants are advised to prepare for variable weather.

Packet pick-up is held the evening before at Civilian Brewing Corps and same-day pick-up is available at the Start/Finish. Fourteen mile and 10K participants use a shuttle from the Owen County Family YMCA to Horse Campground. Entrants registered by March 1 receive event swag. Age group awards and finisher medals are given to finishers.

Camping at Horse Campground is available on a first-come basis with about eight sites and requires self-registration with cash or check. Visit the organization's website for the most recent information.

50 mi
50 Mile
50 km
50k
14 mi
14 Miler
10 km
10k Trail Race
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.