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OPSF 50/50 Trail Race

Poland, United States • 21 Mar 2026

The OPSF 50/50 Trail Race is a well-established event held in Owen-Putnam State Forest near Poland, Indiana, about an hour from Indianapolis. Organized by the Indiana Trail Running Association, it offers multiple distances: a 50-mile ultra, a 50K, a 14-mile run, and a 10K trail race. The course features mostly single-track and horse trails with rolling hills, considered one of Indiana's toughest trail races. The race follows a lollipop-shaped route with aid stations, and participants must carry their own water as no cups are provided. The event has a friendly, low-key atmosphere with awards, finisher medals, and options for camping or nearby lodging. Visit the organization's website for the most recent information.

United States Indiana Poland

Race information

Website Registration
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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