Hardest Ultra Marathon Relay | IRONHIKE OLYMPUS MONS - TRAIL FAMILY FLEX RELAY | Amicalola Falls State Park, Georgia | Team of 3-4 Athletes | 180 Miles | 84 Hour | Hardest Ultra on Earth | Run, Power Hike, Walk. | 72,480 feet of elevation gain and loss split across a 3 to 4 person Trail Family, up and down 604 stairs per lap for a total of 144,960 stairs on the AT Approach Trail staircase above Amicalola Falls. This is the hardest ultra on Earth, or Mars, built for your crew. We are redefining race day. 2026
- Date
- Wednesday, December 9, 2026
- Start time
- 11:59 PM start (New York)
- Location
- Dawsonville, Georgia
- Entry fee
- From $2520
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Events and entry fees
| Event | Distance | When | Entry fee | Cap |
|---|---|---|---|---|
| Olympus Mons Ultra - powered by Skratch Labs ® - Trail Family (Team of 3 or 4) | Ultra | Dec 9, 202611:59 PM | $2520 | – |
Entry fees exclude processing fees. Prices and dates come from the race's registration page and refresh nightly.
Race day planning
Entry fee schedule
- $2520 until Dec 9.
Online registration closes Dec 9, 2026, unless the race fills first.
Light and altitude
Sunrise on race morning is at about 7:31 AM, and the Olympus Mons Ultra - powered by Skratch Labs ® - Trail Family (Team of 3 or 4) starts at 11:59 PM. The start sits about 1,350 feet above sea level.
Fees exclude processing fees. Comparisons use current entry fees and published results from races nearby.
Start location and course
418 Amicalola Falls Lodge Rd, Dawsonville, GA 30534
The pin marks the address the race lists, which is usually the start. The organizers have not shared a course map with us yet.
Typical race-day weather
Around December 9 the day usually runs from 37°F at dawn to 53°F in the afternoon, with measurable rain on about 31% of days. Cold snaps dip to 27°F and hot years reach 64°F.
Based on 75 days within a week of the date over the last 5 years, from historical weather for the start area. Not a forecast.
Race details
- Where
- 418 Amicalola Falls Lodge Rd, Dawsonville, GA 30534Map
- Course
- Trail
- Start elevation
- About 1,350 feet
- Distances
- Ultra
- Editions
- 2026 (Dec 10, 2026)
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Quick answers
- When is Hardest Ultra Marathon Relay | IRONHIKE OLYMPUS MONS - TRAIL FAMILY FLEX RELAY | Amicalola Falls State Park, Georgia | Team of 3-4 Athletes | 180 Miles | 84 Hour | Hardest Ultra on Earth | Run, Power Hike, Walk. | 72,480 feet of elevation gain and loss split across a 3 to 4 person Trail Family, up and down 604 stairs per lap for a total of 144,960 stairs on the AT Approach Trail staircase above Amicalola Falls. This is the hardest ultra on Earth, or Mars, built for your crew. We are redefining race day.?
- Wednesday, December 9, 2026, starting at 11:59 PM.
- How much does it cost?
- Entry starts at $2520 before processing fees.
- When does registration close?
- Online registration closes Dec 9, 2026, unless the race fills first.
- What distances can I run?
- Ultra.
- Where does it start?
- 418 Amicalola Falls Lodge Rd, Dawsonville, GA 30534.
From the organizers
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