Hartness Half Marathon

Greenville, SC, USA · December 12, 2026
partly-cloudy-day42°·54° high·Light·Dry
8
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Race Day Weather

partly-cloudy-day
42°at start
56° high
Light
Dry

Cool start, steady climb ahead

Runners will face a cool start at 39°F, warming to 55°F by the finish. Light winds from the NW will be non-factors throughout, with humidity at a comfortable 57%. Given the temperature increase, runners should consider adjusting their pace conservatively as they warm up, ensuring proper hydration throughout.

Race day forecast available in 46 days
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Pace Calculator

Distance: 13.1mi
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Race Info

The Hartness Half Marathon and 5K run through Hartness, a mixed-use development off Pelham Road near Interstate 85 in Greenville, South Carolina. The half marathon covers two laps of a roughly 6.5-mile loop mixing pavement, dirt trails, gravel roads and grass fields, with a companion 5K and half marathon relay held the same day. Race proceeds benefit Make-A-Wish South Carolina.

Area Map

Course Map

FAQ

When is the 2026 Hartness Half Marathon?

The 2026 Hartness Half Marathon will be held on Saturday December 12, 2026.

What is the time limit for the Hartness Half Marathon?

The time limit for the Hartness Half Marathon is 4 hours.

What will the weather be like for the 2026 Hartness Half Marathon?

The forecast calls for a high of 57°F and a low of 39°F with a 11% chance of rain.

Historical Weather

Based on 8 years of data
Avg Temp
57°F
L:46° H:57°
RunScore
8
Conditions
Rain Freq
0%
0 of 8 yrs
Wind8mph
Dew34°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2025
clear-day
38°/57°-
8
2024
clear-day
36°/46°-
6
2023
clear-day
39°/56°-
8
2021
clear-day
51°/61°-
9
2020
partly-cloudy-day
55°/63°-
9
2019
clear-day
38°/47°-
8
2018
clear-day
43°/52°-
7
2017
cloudy
70°/77°-
8