OPSF 50/50 Trail Race

Poland, United States • 21 Mar 2026

Event overview

OPSF5050 is a trail race held in Owen-Putnam State Forest near Poland, IN (4850 Fishcreek Rd). The event is organized by the non-profit Indiana Trail Running Association (ITRA). Distances offered include:

  • 50 Mile
  • 50K
  • 14 Miler
  • 10K Trail Race

Registration accepts credit cards only; cost varies by distance and same-day registration may be available if capacity is not met. Entrants receive a shirt if registered by March 1. Age-group awards and finishers medals are given to all finishers. Lodging and camping options are listed by the organizer; camping at Horse Campground is charged at $13 per night, is self-registered with cash or check, and sites are available on a first-come basis (about eight campsites; availability not guaranteed).

Course and logistics

All races use a lollipop-shaped trail course starting at Horse Campground. The 14-mile loop is approximately 90% single track and horse trails with some fire road, and features rolling hills and some technically challenging sections. The 50-mile and 50K routes repeat the lollipop loop pattern with additional loops or variations; the 10K is one loop. This is a cupless event: runners must be able to carry 20 oz of water on their person at all times. Parking and shuttle arrangements: 50M/50K participants park at Horse Campground; 14M and 10K participants park at Owen County Family YMCA and are shuttled to Horse Campground. Packet pick-up is available the day before at Civilian Brewing Corps and on event morning at the Start/Finish. Visit the organization's website for the most recent information.

Race information

50 mi
50m
50 km
50k
14 mi
14 Miler
10 km
10k Trail Race
Visit the organization's website for the most recent information.
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