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Mystery Mountain Marathon

Chatsworth, GA, USA

Partly cloudy throughout the day.

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Details
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Pre-Race
Race
Post-Race
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Race Overview

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.
Wikipedia

FAQ

When is the 2026 Mystery Mountain Marathon?

The 2026 Mystery Mountain Marathon will be held on Sunday October 18, 2026.

Is the Mystery Mountain Marathon a Boston Marathon Qualfier?

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.

Mystery Mountain Marathon Weather History

Mystery Mountain Marathon Weather Averages

Average Temp: 61°, Average Low: 50°, Average High: 75°
Time8AM9AM10AM11AM12PM1PM2PM3PM4PM
Temp
51°
54°
60°
64°
68°
71°
73°
74°
75°
Feel51°54°60°64°68°71°73°74°75°
Rain---------
Wind1mph
2mph
3mph
4mph
5mph
5mph
6mph
5mph
5mph
Dew49°51°53°53°53°53°52°52°52°
RunScoreRun Score: 8Run Score: 8Run Score: 8Run Score: 8Run Score: 8Run Score: 8Run Score: 8Run Score: 7Run Score: 7

Mystery Mountain Marathon 2025

Oct 12, 2025
Clear conditions throughout the day.
Low: 47°, High: 79°
Time8AM9AM10AM11AM12PM1PM2PM3PM4PM
Temp
clear-day 47°
clear-day 54°
clear-day 62°
clear-day 67°
clear-day 72°
clear-day 74°
clear-day 78°
clear-day 77°
clear-day 79°
Feel47°54°62°67°72°74°78°77°79°
Rain---------
Wind0mph
0mph
7mph
8mph
9mph
14mph
9mph
10mph
8mph
Dew47°53°55°53°52°51°49°50°51°
RunScoreRun Score: 7Run Score: 8Run Score: 9Run Score: 8Run Score: 8Run Score: 7Run Score: 8Run Score: 7Run Score: 8

Mystery Mountain Marathon 2024

Oct 13, 2024
Clear conditions throughout the day.
Low: 49°, High: 82°
Time8AM9AM10AM11AM12PM1PM2PM3PM4PM
Temp
clear-day 50°
clear-day 54°
clear-day 61°
clear-day 68°
clear-day 73°
clear-day 76°
clear-day 80°
clear-day 82°
clear-day 82°
Feel50°54°61°68°73°76°80°82°82°
Rain---------
Wind0mph
0mph
2mph
5mph
6mph
6mph
6mph
8mph
7mph
Dew50°53°56°57°57°58°59°59°59°
RunScoreRun Score: 8Run Score: 8Run Score: 8Run Score: 9Run Score: 8Run Score: 8Run Score: 8Run Score: 7Run Score: 7

Mystery Mountain Marathon 2023

Oct 8, 2023
Clear conditions throughout the day.
Low: 38°, High: 67°
Time8AM9AM10AM11AM12PM1PM2PM3PM4PM
Temp
clear-day 38°
clear-day 44°
clear-day 53°
clear-day 58°
clear-day 61°
clear-day 63°
clear-day 65°
clear-day 66°
clear-day 67°
Feel38°44°53°58°61°63°65°66°67°
Rain---------
Wind0mph
0mph
5mph
4mph
10mph
10mph
8mph
5mph
7mph
Dew37°42°43°40°35°35°34°33°32°
RunScoreRun Score: 7Run Score: 7Run Score: 9Run Score: 9Run Score: 8Run Score: 8Run Score: 9Run Score: 9Run Score: 9

Mystery Mountain Marathon 2022

Oct 9, 2022
Partly cloudy throughout the day.
Low: 43°, High: 69°
Time8AM9AM10AM11AM12PM1PM2PM3PM4PM
Temp
partly-cloudy-day 43°
partly-cloudy-day 46°
partly-cloudy-day 51°
partly-cloudy-day 55°
partly-cloudy-day 58°
partly-cloudy-day 63°
partly-cloudy-day 66°
clear-day 67°
clear-day 68°
Feel42°43°51°55°58°63°66°67°68°
Rain---------
Wind3mph
7mph
6mph
7mph
1mph
7mph
5mph
0mph
1mph
Dew37°38°39°39°40°41°43°45°44°
RunScoreRun Score: 8Run Score: 8Run Score: 9Run Score: 9Run Score: 8Run Score: 9Run Score: 9Run Score: 8Run Score: 8

Mystery Mountain Marathon 2021

Oct 10, 2021
Clear conditions throughout the day.
Low: 63°, High: 81°
Time8AM9AM10AM11AM12PM1PM2PM3PM4PM
Temp
clear-day 63°
clear-day 66°
partly-cloudy-day 70°
partly-cloudy-day 72°
partly-cloudy-day 75°
partly-cloudy-day 78°
partly-cloudy-day 80°
partly-cloudy-day 80°
clear-day 81°
Feel63°66°70°72°75°78°80°80°83°
Rain---------
Wind0mph
0mph
0mph
0mph
0mph
0mph
2mph
0mph
0mph
Dew63°64°65°66°66°66°65°65°65°
RunScoreRun Score: 8Run Score: 7Run Score: 7Run Score: 7Run Score: 7Run Score: 6Run Score: 7Run Score: 6Run Score: 6

Mystery Mountain Marathon 2019

Oct 13, 2019
Partly cloudy throughout the day.
Low: 54°, High: 70°
Time8AM9AM10AM11AM12PM1PM2PM3PM4PM
Temp
cloudy 54°
cloudy 55°
cloudy 56°
cloudy 60°
cloudy 64°
cloudy 66°
partly-cloudy-day 68°
clear-day 70°
clear-day 70°
Feel54°55°56°60°64°66°68°70°70°
Rain---------
Wind3mph
0mph
0mph
0mph
0mph
2mph
4mph
5mph
2mph
Dew45°45°45°47°47°47°47°46°45°
RunScoreRun Score: 9Run Score: 8Run Score: 8Run Score: 8Run Score: 8Run Score: 8Run Score: 8Run Score: 8Run Score: 8

Mystery Mountain Marathon 2018

Oct 14, 2018
Partly cloudy throughout the day.
Low: 52°, High: 77°
Time8AM9AM10AM11AM12PM1PM2PM3PM4PM
Temp
cloudy 56°
cloudy 60°
cloudy 62°
partly-cloudy-day 64°
partly-cloudy-day 67°
partly-cloudy-day 69°
partly-cloudy-day 72°
partly-cloudy-day 73°
partly-cloudy-day 75°
Feel56°60°62°64°67°69°72°73°75°
Rain---------
Wind0mph
2mph
5mph
6mph
7mph
6mph
7mph
6mph
7mph
Dew55°55°55°55°57°59°58°59°59°
RunScoreRun Score: 8Run Score: 8Run Score: 9Run Score: 9Run Score: 9Run Score: 8Run Score: 8Run Score: 8Run Score: 8

Mystery Mountain Marathon 2017

Sep 24, 2017
Partly cloudy throughout the day.
Low: 61°, High: 84°
Time8AM9AM10AM11AM12PM1PM2PM3PM4PM
Temp
cloudy 61°
partly-cloudy-day 65°
clear-day 70°
clear-day 75°
clear-day 81°
partly-cloudy-day 82°
partly-cloudy-day 82°
partly-cloudy-day 83°
partly-cloudy-day 84°
Feel61°65°70°75°83°83°84°84°86°
Rain---------
Wind0mph
0mph
0mph
0mph
5mph
0mph
1mph
0mph
2mph
Dew61°65°67°67°65°65°64°63°64°
RunScoreRun Score: 8Run Score: 8Run Score: 7Run Score: 7Run Score: 7Run Score: 6Run Score: 6Run Score: 6Run Score: 6

Mystery Mountain Marathon 2016

Oct 9, 2016
Clear conditions throughout the day.
Low: 52°, High: 74°
Time8AM9AM10AM11AM12PM1PM2PM3PM4PM
Temp
clear-day 52°
clear-day 56°
clear-day 59°
clear-day 63°
clear-day 68°
clear-day 70°
clear-day 72°
clear-day 74°
clear-day 74°
Feel52°56°59°63°68°70°72°74°74°
Rain---------
Wind14mph
15mph
15mph
15mph
20mph
14mph
19mph
15mph
21mph
Dew41°41°41°39°37°39°39°37°37°
RunScoreRun Score: 7Run Score: 7Run Score: 7Run Score: 7Run Score: 6Run Score: 7Run Score: 6Run Score: 7Run Score: 6

Mystery Mountain Marathon 2015

Oct 11, 2015
Partly cloudy throughout the day.
Low: 54°, High: 72°
Time8AM9AM10AM11AM12PM1PM2PM3PM4PM
Temp
cloudy 57°
cloudy 57°
cloudy 59°
cloudy 63°
cloudy 64°
cloudy 68°
partly-cloudy-day 70°
partly-cloudy-day 68°
clear-day 72°
Feel57°57°59°63°64°68°70°68°72°
Rain---------
Wind0mph
0mph
3mph
0mph
0mph
5mph
4mph
0mph
4mph
Dew57°57°59°59°59°61°59°57°57°
RunScoreRun Score: 8Run Score: 8Run Score: 9Run Score: 8Run Score: 8Run Score: 9Run Score: 8Run Score: 7Run Score: 8

Mystery Mountain Marathon 2014

Oct 12, 2014
Partly cloudy throughout the day with rain.
Low: 63°, High: 75°, Heavy Rain
Time8AM9AM10AM11AM12PM1PM2PM3PM4PM
Temp
clear-day 63°
partly-cloudy-day 66°
partly-cloudy-day 69°
partly-cloudy-day 70°
cloudy 72°
partly-cloudy-day 74°
partly-cloudy-day 75°
partly-cloudy-day 75°
partly-cloudy-day 74°
Feel63°66°69°70°72°74°75°75°74°
Rain---------
Wind0mph
0mph
0mph
0mph
4mph
3mph
9mph
4mph
0mph
Dew63°65°69°69°69°68°68°68°68°
RunScoreRun Score: 8Run Score: 7Run Score: 7Run Score: 7Run Score: 8Run Score: 8Run Score: 8Run Score: 8Run Score: 7

Mystery Mountain Marathon 2013

Oct 13, 2013
Clear conditions throughout the day.
Low: 51°, High: 79°
Time8AM9AM10AM11AM12PM1PM2PM3PM4PM
Temp
partly-cloudy-day 51°
clear-day 56°
clear-day 62°
clear-day 67°
clear-day 73°
clear-day 76°
clear-day 77°
clear-day 79°
clear-day 79°
Feel51°56°62°67°73°76°77°79°79°
Rain---------
Wind0mph
0mph
0mph
2mph
9mph
10mph
11mph
10mph
12mph
Dew51°55°60°61°61°60°59°59°59°
RunScoreRun Score: 8Run Score: 8Run Score: 8Run Score: 8Run Score: 8Run Score: 7Run Score: 7Run Score: 7Run Score: 7

Mystery Mountain Marathon 2012

Oct 14, 2012
Partly cloudy throughout the day.
Low: 58°, High: 73°
Time8AM9AM10AM11AM12PM1PM2PM3PM4PM
Temp
partly-cloudy-day 59°
cloudy 61°
cloudy 63°
cloudy 64°
cloudy 65°
cloudy 65°
cloudy 69°
partly-cloudy-day 71°
partly-cloudy-day 73°
Feel59°61°63°64°65°65°69°71°73°
Rain---------
Wind3mph
2mph
4mph
7mph
6mph
6mph
8mph
8mph
9mph
Dew55°56°56°57°59°60°61°62°63°
RunScoreRun Score: 9Run Score: 8Run Score: 9Run Score: 9Run Score: 9Run Score: 9Run Score: 8Run Score: 8Run Score: 8

Mystery Mountain Marathon 2011

Oct 9, 2011
Partly cloudy throughout the day.
Low: 52°, High: 72°
Time8AM9AM10AM11AM12PM1PM2PM3PM4PM
Temp
clear-day 53°
clear-day 55°
clear-day 61°
clear-day 65°
clear-day 68°
clear-day 70°
clear-day 70°
clear-day 71°
clear-day 72°
Feel53°55°61°65°68°70°70°71°72°
Rain---------
Wind0mph
0mph
0mph
4mph
4mph
1mph
1mph
0mph
2mph
Dew52°53°54°52°52°54°54°54°55°
RunScoreRun Score: 8Run Score: 8Run Score: 8Run Score: 9Run Score: 8Run Score: 7Run Score: 7Run Score: 7Run Score: 8

Mystery Mountain Marathon 2010

Oct 10, 2010
Clear conditions throughout the day.
Low: 43°, High: 83°
Time8AM9AM10AM11AM12PM1PM2PM3PM4PM
Temp
clear-day 43°
clear-day 47°
clear-day 56°
clear-day 63°
clear-day 72°
clear-day 77°
clear-day 79°
clear-day 81°
clear-day 83°
Feel43°47°56°63°72°77°79°80°81°
Rain---------
Wind0mph
0mph
0mph
0mph
0mph
0mph
3mph
0mph
1mph
Dew43°46°51°53°53°51°49°45°44°
RunScoreRun Score: 7Run Score: 7Run Score: 8Run Score: 8Run Score: 7Run Score: 7Run Score: 7Run Score: 7Run Score: 7

Mystery Mountain Marathon 2009

Nov 7, 2009
Clear conditions throughout the day.
Low: 38°, High: 70°
Time7AM8AM9AM10AM11AM12PM1PM2PM3PM
Temp
clear-night 38°
clear-day 41°
clear-day 50°
clear-day 55°
clear-day 59°
clear-day 63°
clear-day 65°
clear-day 68°
clear-day 70°
Feel38°41°48°55°59°63°65°68°70°
Rain---------
Wind0mph
0mph
4mph
5mph
8mph
6mph
6mph
7mph
6mph
Dew37°39°41°41°43°43°43°38°39°
RunScoreRun Score: 7Run Score: 7Run Score: 9Run Score: 9Run Score: 9Run Score: 9Run Score: 9Run Score: 9Run Score: 8

Mystery Mountain Marathon 2008

Nov 2, 2008
Clear conditions throughout the day.
Low: 32°, High: 72°
Time7AM8AM9AM10AM11AM12PM1PM2PM3PM
Temp
clear-night 32°
clear-day 36°
clear-day 45°
clear-day 50°
clear-day 56°
clear-day 63°
clear-day 68°
clear-day 70°
clear-day 72°
Feel32°36°45°50°56°63°68°70°72°
Rain---------
Wind0mph
0mph
0mph
0mph
0mph
3mph
4mph
3mph
0mph
Dew32°36°41°43°45°43°45°43°43°
RunScoreRun Score: 6Run Score: 6Run Score: 7Run Score: 8Run Score: 8Run Score: 9Run Score: 9Run Score: 8Run Score: 7