The Mountains to Sea Trail 100 Endurance Run is designed for speed and agility.

All distances will travel the same out-and-back course heading west from headquarters. The 50 & 100 mile courses will include an additional out-and-back heading east, with turnarounds corresponding to each total distance. Along the scenic course, runners will experience beautiful views of Falls Lake, crossing several bridges and often running right beside the lake.


The 50K distance has a 10 hour time limit.

33 miles

An out-and-back loop with a little tour of the Rolling View grounds
Download GPX file

1,800' elevation

Mostly skirting the lake, this segment is built for speed

3 aid stations

One station half way (visited twice), one at the turnaround

The 50 Mile distance has a 15 hour time limit.

50 miles

Two out-and-back loops in opposite directions from base camp
Download GPX file

3,100' elevation

Including a little more alone-time and a creek crossing

2 additional aid stations

Swing by headquarters, and another one you'll see twice

The 100 Mile distance has a 32 hour time limit.

102 miles

Two out-and-back loops in opposite directions from base camp
Download GPX file

7,700' elevation

Much of the course is rolling, but it adds up over distance

7 aid stations

Plenty of support along the way, with additional help at road crossings


Trail work requirements have been cancelled for this year.

In the coming years, 8 hours of trail work or volunteer participation at a 100 mile ultra will be required.


Details on how to participate, get involved, and gear up.


For Runners

The race packet includes everything you need to know.

  • Race rules & pacer info
  • Terrain & local Wildlife
  • Pre-race agenda

100M Course Map

Get a feel for what the course has in store for you.

  • Map of race path
  • Elevation Chart

For Volunteers

We have a variety of volunteer opportunities including:

  • Race headquarters
  • Road crossings/aid stations
  • Course sweepers
Race Time

6:00am on Mar 9, 2024

32 hour time limit for 100 mile

Volunteer for this year's race

If you have interest in helping in this year's race please let us know. We need volunteers in a variety of capacities, including the following:

1Race Headquarters
Race headquarters will be busy for the entire race and we'll need help with set up, packet pick up, and many other tasks.
Support runner safety and care by assisting with road crossings, traffic management, and nutritional or medical care.
After the runners clear sections of the course, we'll need folks to clean up trash and make sure runners are all accounted for.

Please fill out our contact form and race director Jonathan Frey will send you details and schedules on how to get involved.

Paying it forward

A portion of the proceeds from the MST 100 Endurance Race will be donated to Healing Transitions and the Friends of the Mountains to Sea Trail. As you prepare for the MST 100 Endurance Race, the following opportunities may be of interest:

  • 1
    Bolster your training and community impact by participating in the Oakwood24 beginning December 22-23, 2023. No better way to get in an easy, fun-filled 50 miler before the end of the year. Follow this link to find out more details.

  • 2
    We will be hosting some training runs on the MST 100 Endurance Race course in February and March. We'll post dates here and on Twitter as we get closer to the race.
    • Saturday 2/12 at 0700 at Rolling View Recreation beach area parking lot
    • Saturday 2/26 at 0800 at Blue Jay Point County Park - Blue Jay Point Lodge Trailhead Parking
    • Saturday 3/5 at 0700 at Rolling View Recreation beach area parking lot

Get In Touch

If you have any questions about the race that you don't find answers to on this site, please send us a message.

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2024 Sponsors Coming Soon!



2022 Sponsors

Our sponsors have gone above and beyond to support the MST 100 Endurance Race. If you're in the market for their services and products, we recommend you check them out. You'll have the opportunity to experience their wares during the race.




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Trail Toes

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White Oak Wealth


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