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Mystery Mountain Marathon

Chatsworth, GA
Sunday, October 18, 2026


  4 Stars from 2 Reviews

Course Description
The Mystery Mountain Marathon traverses difficult, sometimes technical but stunningly beautiful trails, featuring panoramic views of fall foliage displayed on the surrounding mountains.

The course climbs and descends more than 15,000 feet. The course is single track, rugged mountain bike, and smooth horse trails over and around Fort Mountain, passing the mysterious rock wall built at the top of the mountain over 1,000 years ago.

October Other Marathons in October Other Marathons in Georgia Marathons near Chatsworth, GA



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Race Information

Race Dates

2026: Sunday, October 18, 2026
2025: Sunday, October 12, 2025

Course Information

Profile: Very Hilly
Type: Loop
Surface: Trail

Boston Qualifier?: No
World Marathon Major Qualifier?: No

Race Day Weather

Mean Temp.: 61°F (16°C)
Average High: 70°F (21°C)
Average Low: 51° F (10°C)

PR Score & Course Score

PR Score: N/A
Course Score: N/A

Race Size

2025: No Results
2024: No Results
2023: 77 Finishers
2022: 68 Finishers
2021: No Results
2020: No Results

BQ Percentages

2025: N/A
2024: N/A
2023: N/A
2022: N/A
2021: N/A
2020: N/A

Miscellaneous Information

Pace Groups?: No




Mystery Mountain Marathon Rankings, Course Speed & Boston Qualifier Statistics

Marathon rankings for the Mystery Mountain Marathon will be listed once the 2025 race results have been posted, if the race was not cancelled.



Mystery Mountain Marathon Elevation Chart


No course elevation available at this time.




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Comparison Tool

If you ran the Mystery Mountain Marathon in 4:06:00, what would your time in other marathons be?

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Race Reviews


4.0
Based on 2 reviews
Write Your Own Review

I keep coming back

Full Review:

I am a glutton for punishment and every time I run the 12 or full I ask myself why do I keep doing this to myself? It's addictive. It's gorgeous. It's a true trail race. Climbing, crossing water, using my entire body with all its senses, not just slogging out miles shuffling my feet down some paved road somewhere. It's extremely well organized, friendly people, great aid stations. One year there even was beer at the top of the power line climb.

Race Tips:

If doing the full marathon, pace yourself for the second loop. For me the down was more challenging than the up. Be aware of your feet.
Yes, there are rocks, slick single track, roots, water, yellowjackets (only happened to me one year), and lots of climbing. It's glorious.

Travel/Logistics Tips:

Highly recommend a soak in the lake at the end of the race
Reviewed by Md About 2017

Full Review:

Toughest race I have ever attempted. It is exactly as advertised. Slippery from an early morning rain. Very narrow single track for much of the first half. Really not thrilled with the yellow jackets around mile 3. Loved it, hated it, loved it, hated it, loved it. Not sure if I'm tough enough to go back next year.

Race Tips:

Hopefully you are better prepared than me. I've done marathons on the road and trail half marathons, but this one caught me by surprise at how tough it was. I thought I went out slowly enough, but I learned a hard lesson.

Run extremely well by the group in charge - G.U.T.S. Great people, very encouraging all the way around. Food looked good at the end, but my stomach just wasn't going to handle it this day.

Travel/Logistics Tips:

Get there early to get the lowdown on the course. It still may not help. Words will not do the course justice.
Reviewed by AG About 2014