The 2026 event has concluded.

ONU Polar Bear Indoor Marathon

Ada, OH, USA · January 25, 2026

9°·14° high·Windy·Snow

Race Day Weather

9°at start

14° high

Windy

Snow

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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Distance: 26.2mi

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0:00:00

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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.

Website

Course Map

FAQ

When is the 2026 ONU Polar Bear Indoor Marathon?

The 2026 ONU Polar Bear Indoor Marathon will be held on Sunday January 25, 2026.

Is the ONU Polar Bear Indoor Marathon a Boston Marathon Qualifier?

No, the ONU Polar Bear Indoor Marathon is NOT a Boston Marathon qualifier.

What will the weather be like for the 2026 ONU Polar Bear Indoor Marathon?

The forecast calls for a high of 14°F and a low of 8°F with a 100% chance of rain.

Historical Weather

Based on 15 years of data

Avg Temp

36°F

L:27° H:37°

RunScore

Conditions

Rain Freq

40%

6 of 15 yrs

Wind11mph

Dew26°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2026 ONU Polar Bear Indoor Marathon Cloudy skies throughout the day with a chance of snow throughout the day. 2026	19°/23°	Light	19°
2025 ONU Polar Bear Indoor Marathon Partly cloudy throughout the day. 2025	31°/38°	-	21°
2024 ONU Polar Bear Indoor Marathon Cloudy skies throughout the day with a chance of rain throughout the day. 2024	38°/41°	Light	37°
2023 ONU Polar Bear Indoor Marathon Cloudy skies throughout the day with a chance of rain throughout the day. 2023	42°/45°	Light	41°
2020 ONU Polar Bear Indoor Marathon Partly cloudy throughout the day. 2020	32°/36°	-	29°
2019 ONU Polar Bear Indoor Marathon Partly cloudy throughout the day. 2019	11°/14°	-	7°
2018 ONU Polar Bear Indoor Marathon Clearing in the afternoon with early morning rain. 2018	34°/49°	-	35°
2017 ONU Polar Bear Indoor Marathon Partly cloudy throughout the day with rain or snow. 2017	31°/32°	Light	25°
2016 ONU Polar Bear Indoor Marathon Partly cloudy throughout the day with late afternoon rain. 2016	51°/61°	-	44°
2015 ONU Polar Bear Indoor Marathon Partly cloudy throughout the day with rain or snow. 2015	34°/38°	Light	32°
2014 ONU Polar Bear Indoor Marathon Partly cloudy throughout the day with morning snow. 2014	11°/33°	Light	9°
2013 ONU Polar Bear Indoor Marathon Becoming cloudy in the afternoon with late afternoon rain or snow. 2013	17°/33°	-	19°
2012 ONU Polar Bear Indoor Marathon Clear conditions throughout the day. 2012	28°/42°	-	21°
2011 ONU Polar Bear Indoor Marathon Becoming cloudy in the afternoon with early morning snow or rain. 2011	27°/33°	-	27°
2010 ONU Polar Bear Indoor Marathon Clear conditions throughout the day. 2010	7°/28°	-	11°

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