Ohio Northern Indoor Marathon

Ohio Northern University hosts the Polar Bear Indoor Marathon and Half Marathon at the ONU Sports Center in Ada, Ohio. The event is held on a 200-meter indoor track, with the marathon run as 211 laps and the half marathon as 105.5 laps. Runners change directions every 30 minutes to keep the course fair, and two aid stations are on the track.

The USATF-certified course (OH10061PR) may yield longer distances due to turns and lane changes. The field is capped at 40, with possible exceptions. Proceeds benefit the ONU cross country and track & field teams.

Registration is $100 and includes a shirt and finisher's medal. Spectators are welcome; strollers and pets aren't allowed. Visit the organization's website for the most recent information.