ONU Polar Bear Indoor Marathon

Ada, OH, USA · January 31, 2027·
partly-cloudy-day24°·28° high·Breezy·Dry
10
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ONU Polar Bear Indoor Marathon race day weather

partly-cloudy-day
24°at start
34° high
Breezy
Dry
Your goal
0:00:00

Cold start, steady pace advised

Runners will face temperatures ranging from 24°F at the start to 28°F at the finish, with a light wind from the SW at 13 mph. With humidity at 68% and a dew point of 18°F, conditions are chilly but manageable. Runners should dress warmly and consider pacing conservatively to maintain comfort throughout.

Race day forecast available in 67 days
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About the ONU Polar Bear Indoor Marathon

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.

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Race weekend

Sunday, January 31
7:30 AMMarathon (26.2 mi)
7:30 AMHalf Marathon (13.1 mi)
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ONU Polar Bear Indoor Marathon FAQ

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When is the 2027 ONU Polar Bear Indoor Marathon?

The 2027 ONU Polar Bear Indoor Marathon will be held on Sunday January 31, 2027.

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 is the time limit for the ONU Polar Bear Indoor Marathon?

The time limit for the ONU Polar Bear Indoor Marathon is 6 hours.

What will the weather be like for the 2027 ONU Polar Bear Indoor Marathon?

The forecast calls for a high of 36°F and a low of 22°F with a 9% chance of rain.

What is the weather usually like for the ONU Polar Bear Indoor Marathon?

Over the 15 years racecast.io has race-day weather for (2010 to 2026), it averaged 26°F at the start and 29°F by a typical finish. Rain fell during race hours in 3 of those years (2014, 2024 and 2026).

What was the hottest ONU Polar Bear Indoor Marathon?

Of the 15 years on record, 2016 was the warmest, reaching 54°F during race hours. The coldest start was 2010, at 6°F.

What was the windiest ONU Polar Bear Indoor Marathon?

Of the 15 years on record, 2024 was the windiest, with wind averaging 20 mph during race hours. The calmest was 2018, at 4 mph.

ONU Polar Bear Indoor Marathon weather history

Based on 15 years of data
Avg Temp
27°F
L:25° H:29°
RunScore
10
Conditions
Rain Freq
20%
3 of 15 yrs
Wind11mph
Dew22°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults

2026 ONU Polar Bear Indoor Marathon

Cloudy skies throughout the day with snow.

2026
snow
9°/12°Light
10

2025 ONU Polar Bear Indoor Marathon

Clear conditions throughout the day.

2025
clear-night
24°/28°-
10

2024 ONU Polar Bear Indoor Marathon

Cloudy skies throughout the day with a chance of rain or snow throughout the day.

2024
cloudy
35°/36°Light
10

2023 ONU Polar Bear Indoor Marathon

Cloudy skies throughout the day with early morning rain.

2023
cloudy
41°/43°-
10

2020 ONU Polar Bear Indoor Marathon

Cloudy skies throughout the day.

2020
cloudy
33°/33°-
10

2019 ONU Polar Bear Indoor Marathon

Partly cloudy throughout the day.

2019
cloudy
11°/15°-
10

2018 ONU Polar Bear Indoor Marathon

Clear conditions throughout the day.

2018
clear-night
27°/41°-
10

2017 ONU Polar Bear Indoor Marathon

Partly cloudy throughout the day.

2017
cloudy
26°/28°-
10

2016 ONU Polar Bear Indoor Marathon

Partly cloudy throughout the day with late afternoon rain.

2016
cloudy
48°/54°-
10

2015 ONU Polar Bear Indoor Marathon

Cloudy skies throughout the day with rain or snow.

2015
cloudy
34°/35°-
10

2014 ONU Polar Bear Indoor Marathon

Partly cloudy throughout the day with morning snow.

2014
partly-cloudy-night
8°/14°Light
10

2013 ONU Polar Bear Indoor Marathon

Partly cloudy throughout the day with late afternoon rain or snow.

2013
partly-cloudy-night
16°/24°-
10

2012 ONU Polar Bear Indoor Marathon

Partly cloudy throughout the day.

2012
clear-night
30°/36°-
10

2011 ONU Polar Bear Indoor Marathon

Partly cloudy throughout the day.

2011
cloudy
26°/27°-
10

2010 ONU Polar Bear Indoor Marathon

Clear conditions throughout the day.

2010
partly-cloudy-night
6°/18°-
10

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