Oak Ridge to Kingston Express O2K Half Marathon

Oak Ridge, TN, USA · February 28, 2027·
partly-cloudy-night41°·42° high·Light·Dry
9
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Race Day Weather

partly-cloudy-night
41°at start
49° high
Light
Dry
Your goal
0:00:00

Cool start — fast day potential

A cool 41°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temperatures rising to 49°F through the course will gradually increase perceived effort in the second half. Light winds shouldn't be a major factor for pacing. Moderate humidity at 72% is worth noting for effort level, especially in later miles.

Race day forecast available in 107 days
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Pace Calculator

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Race Plan

Get your personalized Oak Ridge to Kingston Express O2K Half Marathon race plan

A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.

Race Pace
Weather Splits
Nutrition
Gear & Packing
T-Minus
Carb Tracker
Spectator Guide
Race Band

Race Info

The Half Marathon is a point-to-point run that starts on North Jefferson Circle in Oak Ridge and follows the Oak Ridge Turnpike for the rest of the distance, using the bike lane and shoulder. The course climbs less than 400 feet in total, so it is a fast, gently rolling highway route. It runs on the same road as the first half of the marathon, which turns around and retraces it. Runners arrange their own ride back to the start.

Race weekend

Sunday, February 28
6:00 AMMarathon (26.2 mi)
6:00 AMHalf Marathon (13.1 mi)

FAQ

When is the 2027 Oak Ridge to Kingston Express O2K Half Marathon?

The 2027 Oak Ridge to Kingston Express O2K Half Marathon will be held on Sunday February 28, 2027.

What is the time limit for the Oak Ridge to Kingston Express O2K Half Marathon?

The time limit for the Oak Ridge to Kingston Express O2K Half Marathon is 2.083 hours.

What will the weather be like for the 2027 Oak Ridge to Kingston Express O2K Half Marathon?

The forecast calls for a high of 58°F and a low of 39°F with a 13% chance of rain. Check our detailed hourly forecast above for the best half marathon race plan.

Historical Weather

Based on 6 years of data
Avg Temp
40°F
L:40° H:41°
RunScore
10
Conditions
Rain Freq
0%
0 of 6 yrs
Wind1mph
Dew33°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
cloudy
47°/48°-
10
2025
clear-night
26°/27°-
10
2024
cloudy
46°/47°-
10
2023
clear-night
37°/39°-
10
2022
partly-cloudy-night
54°/55°-
9
2021
clear-night
28°/30°-
10