This event is NOT sold out.
Due to the uncertainty with COVID-19 we have made registration for this event a waitlist only because we feel it is irresponsible to continue to collect registration fees. We have no plans to cancel or reschedule this event and the event is not sold out as this page suggests. If the race goes on as planned, you will receive an email from Ultrasignup asking you to accept the invitation to register for this race. No money will be collected until you accept this registration. Please continue to check back for updates!
The Mogollon Monster 100 is a rugged, challenging trail race taking place about 90 minutes northeast of Phoenix, Arizona just outside the small town of Pine, Arizona. This is an advanced degree endurance race of 100 miles with the addition of a 105 kilometer race and a 35 kilometer race! The races navigate up, down, around and through the beautiful Mogollon Rim (Pronounced: mug-ee-yun or muggy-own by locals, we'll call it MOG100 to keep it simple.)
The Rim rises out from the earth 2,000 some feet for a span of 200 miles across Arizona and into New Mexico, defining much of the eastern part of the state. This Rim takes the race from elevations of 5,500 feet at the start to upwards of 7,900 feet at the top of the Rim, changing ecosystems along the way in distinct flora changes as the elevation changes switch the scenery from high Sonoran Desert to the largest contiguous Ponderosa Pine forest in the world.
The 100 mile race climbs the Rim in four separate locations spending a lot of miles along the Rim, on top of the Rim and the challenging climbs up and down. Expect to climb a total of 22,000 feet along the way in the 100 mile race never below 5,000 feet and never above 8,000 feet in elevation. While other races are certainly at higher elevations, and/or with more climbing, they certainly do not contain as rugged a terrain that is found on this course. This is a VERY technical course in many areas, specifically the Highline Trail, Donahue and the soon to be revered, Myrtle Trail. Coupled with the mileage, the terrain, the moderate elevation, and the Arizona sun, this race will certainly take it's toll on each runner.
As the race takes place in late September temperatures should be in the low 70's to 80's below the Rim but can be drastically lower (read: below freezing) on top of the Rim at night. Thunderstorms from the summer monsoon season in Arizona are still possible and with that comes major wind, lightning and flash flood rains. Snow is a possibility, if unlikely in the higher elevations of the course. For the most part we can expect sunny skies, great temperatures and the start of some great fall foliage, especially on top of the Rim with all the ash, oak, maple along the trails.
Qualifying for The Monster: The 100 mile distance is not an easy race and as such, all entrants will be required to have completed, at minimum, a 50 mile race or greater before race day.
Hardrock 100 Qualifier
As the Hardrock Hundred was canceled in 2019, the current qualifying race for the next Hardrock will be the 2019 & 2020 Mogollon Monster 100 Mile. This finish will go towards the 2021 Hardrock lottery. See additional details here: Hardrock 100 Qualifying Races
The Monster is NOT a Western States 100 qualifier.
UTMB Qualifying Race!
The 2020 Mogollon Monster 100 mile race will award 6 points towards the 2021 UTMB races. The 105K distance will award 4 points towards the 2021 UTMB races.
Anything else you may need to know is located on the Mogollon Monster website! Information on the website includes: course maps, race day schedule, pacer & crew information, and more.
Local time: 8:46 PM
Race entries are non-refundable and non-transferable. For other options, please check out our Race Withdrawal Policy.