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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 running event held in Owen-Putnam State Forest near Poland, Indiana. Organized by the Indiana Trail Running Association, it offers multiple distances including a 50-mile ultra, 50K, 14-mile, and 10K trail races. The course features mostly single-track and horse trails with rolling hills, making it one of Indiana’s toughest trail races.

The race follows a lollipop-shaped route starting at Horse Campground, with aid stations but no cups provided, requiring runners to carry their own water. The event has a friendly, low-key atmosphere and provides awards, finisher medals, and participant shirts. Camping and lodging options are available nearby. 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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