ONU Polar Bear Indoor Half Marathon

Ada, OH, USA · January 31, 2027·
partly-cloudy-day24°·25° high·Breezy·Dry
10
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Race Day Weather

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

Cold start — layer up, moderate wind

Runners will start in chilly 24°F conditions — dress in layers for the corral and plan to shed early. Temperatures rising to 34°F through the course will gradually increase perceived effort in the second half. Moderate winds around 13mph may affect pacing on open sections of the course. Moderate humidity at 67% is worth noting for effort level, especially in later miles.

Race day forecast available in 90 days
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Pace Calculator

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Race Info

The Half Marathon is 105.5 laps of the 200-meter indoor track in the field house at Ohio Northern University's Sports Center in Ada, Ohio. It runs on the same Sunday morning in late January as the marathon, on the same flat, dry surface, whatever the weather is doing outside. Runners reverse direction at set intervals, so passing on the turns and moving to the outside lanes add a little distance to the certified length.

Race weekend

Sunday, January 31
7:30 AMMarathon (26.2 mi)
7:30 AMHalf Marathon (13.1 mi)
Area Map

Course Map

FAQ

When is the 2027 ONU Polar Bear Indoor Half Marathon?

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

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

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

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

The forecast calls for a high of 36°F and a low of 22°F with a 9% chance of rain. Check our detailed hourly forecast above for the best half marathon race plan.

Historical Weather

Based on 15 years of data
Avg Temp
26°F
L:25° H:26°
RunScore
10
Conditions
Rain Freq
20%
3 of 15 yrs
Wind10mph
Dew21°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
snow
9°/11°Light
10
2025
clear-night
24°/25°-
10
2024
cloudy
36°/36°Light
10
2023
cloudy
41°/42°-
10
2020
cloudy
33°/33°-
10
2019
cloudy
12°/15°-
10
2018
clear-night
27°/30°-
10
2017
cloudy
26°/26°-
10
2016
cloudy
48°/49°-
10
2015
cloudy
35°/35°-
10
2014
partly-cloudy-night
8°/9°Light
10
2013
partly-cloudy-night
16°/17°-
10
2012
clear-night
30°/32°-
10
2011
cloudy
27°/27°-
10
2010
partly-cloudy-night
6°/10°-
10