Mogollon Monster 100
2026 Mogollon Monster 100
100 Miler
Registration open
Registration open as of research date (2026-08-21); closes Monday, Sept 7, 2026 at 11:59 PM MT.
Race dateSeptember 12-13, 2026
Duration2 days
Whenin 3 days
First held2012
Free, and always will be. NavRun makes money from race-day planning for runners who want it, never from this.
Ultras change constantly, sometimes the morning of. Always confirm with the race director and the official website before you rely on anything here.
Distance
not checked yet
Climb
not checked yet
Descent
not checked yet
High point
not checked yet
Time limit
not checked yet
Aid stations
0
Started
not checked yet
Finished
not checked yet
Finish rate
not checked yet
The race
What this one is
A rugged point-to-point trail race on the Mogollon Rim near Pine, Arizona, about 90 minutes northeast of Phoenix. The 100 Mile distance runs from the Two-Sixty Trailhead to the town of Pine, climbing the Rim on six separate occasions between elevations of roughly 5,200-5,300 ft and 7,900-8,000 ft, through Sonoran desert scrub at the bottom and the largest contiguous ponderosa pine forest in the world on top. A shorter 42K starts the next morning at the Pine Trailhead and finishes alongside the 100 Mile in the center of Pine.
'Mogollon Monster' plays on both the difficulty of the course and local Bigfoot legend on the Rim. Race results are shown on the official site back to 2012, and the founder (Jeremy Dougherty, whose brother Noah is the current Race Director) says he has 'ran hundreds of miles of this course since 2012.' The founder's own account states the race originally ran a 106-mile course and that 'in our first five years... we only saw 99 runners finish.' Aravaipa Running has directed the race since 2016. A 2017 wildfire (the Highline Fire) damaged trail east of Washington Park and, combined with flooding that followed within two months, forced a reroute that also affected the neighboring Zane Grey 50 in 2018 and 2019; the site records a separate 'Old Courses' course-record table for the pre-reroute route. The current point-to-point layout (Two-Sixty Trailhead to Pine) has been used since roughly 2021 -- the 2025 crew manual calls that year 'the fifth year with the point-to-point route.' No result year appears for 2020 in the site's own year-by-year results list.
Getting in
Getting in
Entry, lottery and what the race asks of you before race day.
- Lottery
-
No
aravaiparunning.com
- Lottery opens
-
not checked yet
- Lottery draw
-
not checked yet
- Field cap
-
not checked yet
- Registration
-
UltraSignup
ultrasignup.com
- Qualifying
-
not checked yet
- Minimum age
-
not checked yet
- Transfers
-
No
aravaiparunning.com
- Deferrals
-
No
aravaiparunning.com
Crew access, pacers and drop bags
The rules that shape your day
Anything marked "not checked yet" is a gap in what we hold, never a no from the race.
- Crew allowed
-
not checked yet
- Vehicles per runner
-
not checked yet
- Pacers
-
not checked yet
- Muling
-
not checked yet
- Drop bags
-
not checked yet
- Cupless
-
not checked yet
- Course marking
-
not checked yet
- Night running
-
not checked yet
- Dogs
-
not checked yet
- Headphones
-
not checked yet
- Crew rules
-
not checked yet
- Pacer rules
-
not checked yet
- Drop bag rules
-
not checked yet
- Cutoff philosophy
-
not checked yet
Same race, other lines
Other distances and other years
What it looks like out there
Somebody has been out there with a camera
the tables say the climb is long. these say what long feels like.
Nobody has been out there with a camera or a microphone yet. A gap means nobody has found it, not that it is not out there. Seen a course preview or a film of this one? Send us the link.
Add to this page
What you know
every one of these is read by a person before it changes anything
Ran this race? Tell the next runner what you know.
Nobody sees it until we have read it. No account, no sign-in.
See something wrong or out of date? Suggest an edit.
This changes nothing on the page on its own. Somebody checks it against the race first.
Seen a course preview or a film of this one? Send it over.
Somebody watches it before it goes anywhere near this page. What we are after is footage of this course, on the ground. If it would be just as true of any other race, it is not this.
Have the GPX? Send us the link.
We want the address of the file the race publishes, not the file. We download it from there so the page can say where the line came from.
Are you the race director? Get in touch and we'll make it right.
We read every one of these and we write back. Every fact here carries the source it came from, and the way a wrong one gets fixed is a person checking it against what you tell us.
Where this came from.
Every fact on this page records its source and when we last checked it: 33 sources for this race. Hover a source link to read the sentence it came from.
0% of what we track for a course is filled in. The rest says "not checked yet" rather than guessing.
Ultras change. We will tell you when this one does.
Cutoffs move, races get postponed, lotteries open and close. We read the race's own sources and record where every fact came from. Put your email in and we will send you what changed, and where we read it.
No account, and nothing to cancel.
What happens to your email. Nothing else. I do not sell it, and I will not send you anything except this race changing. One click gets you out.
I keep this catalog because the information is scattered and hard to trust. Telling you when it moves is the same job.
Running this one?
NavRun builds your pacing from your own training, then turns it into a plan your crew can follow: when to leave and where to park.
Start free
