Mystery Mountain Marathon

Chatsworth, GA, USA · October 17, 2027
partly-cloudy-day46°·65° high·Light·Dry
9
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Race Day Weather

partly-cloudy-day
46°at start
65° high
Light
Dry

Cool start, warming finish

Runners will face a cool start at 46°F, gradually warming to 60°F at the finish. With light wind from the NW at 7 mph and 59% humidity, conditions will feel comfortable, though hydration is essential as temperatures rise. The course features significant elevation changes, with tough climbs and descents, particularly from mile 20 to 22. Adjust pacing during the early climbs and hydrate regularly as temperatures increase.

Race day forecast available in 334 days
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Pace Calculator

Distance: 26.2mi
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Race Info

Marathon and 12-mile trail races traversing difficult, sometimes technical but stunningly beautiful trails, featuring panoramic views of fall foliage displayed on the surrounding mountains. Climbing and descending for about 5,500 feet of elevation gain, runners will enjoy single track, rugged mountain bike, and smooth horse trails while running over and around Fort Mountain, passing the mysterious rock wall built at the top of the mountain over 1,000 years ago. Source

FAQ

When is the 2027 Mystery Mountain Marathon?

The 2027 Mystery Mountain Marathon will be held on Sunday October 17, 2027.

Is the Mystery Mountain Marathon a Boston Marathon Qualifier?

No, the Mystery Mountain Marathon is NOT a Boston Marathon qualifier.

What is the time limit for the Mystery Mountain Marathon?

The time limit for the Mystery Mountain Marathon is 8 hours.

What will the weather be like for the 2027 Mystery Mountain Marathon?

The forecast calls for a high of 68°F and a low of 47°F with a 6% chance of rain.

What is the elevation profile of the Mystery Mountain Marathon?

The Mystery Mountain Marathon has 5500ft of total elevation gain. View the interactive course map above for a detailed elevation profile.

Historical Weather

Based on 18 years of data
Avg Temp
75°F
L:51° H:75°
RunScore
7
Conditions
Rain Freq
6%
1 of 18 yrs
Wind6mph
Dew50°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
partly-cloudy-day
42°/67°-
9
2025
partly-cloudy-day
51°/78°-
8
2024
clear-day
51°/82°-
8
2023
clear-day
39°/67°-
8
2022
partly-cloudy-day
42°/68°-
8
2021
clear-day
63°/81°-
7
2019
cloudy
54°/70°Light
8
2018
cloudy
57°/77°-
8
2017
partly-cloudy-day
62°/85°-
7
2016
clear-day
53°/74°-
7
2015
cloudy
58°/72°-
8
2014
clear-day
63°/76°-
8
2013
clear-day
52°/80°-
7
2012
cloudy
60°/74°-
8
2011
clear-day
55°/72°-
8
2010
clear-day
47°/87°-
7
2009
clear-night
38°/70°-
8
2008
clear-night
33°/72°-
7