ONU Polar Bear Indoor Marathon
Race Day Weather
Cold and windy, dress warmly
Runners will face frigid temperatures ranging from 9°F at the start to a maximum of 14°F. Wind will be a factor, with a steady 17 mph from the NNE, causing a wind chill effect. With high humidity at 86%, it's crucial for runners to layer appropriately and consider pacing adjustments to stay comfortable.
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Race Info
The ONU Polar Bear Indoor Marathon is run entirely on the 200-meter indoor track at Ohio Northern University's Sports Center in Ada, Ohio, requiring 211 laps for the marathon and 105.5 laps for the half marathon, with runners reversing direction every 30 minutes. It has run annually in late January since at least 2010, with the field typically 10 to 20 marathon finishers. The race benefits ONU's cross country and track & field programs. Adam Lowe won the 2025 edition in 3:02:36, with Angela Carron the top female finisher in 3:08:12.
