Use the Sunday 42K schedule at Pine Trailhead
The event page contains extensive 100-mile instructions before the 42K section. Use the 42K-specific map, start address and aid table when making a plan. The longer race’s qualification standards, pacer arrangements and drop-bag system should not be assumed to apply to the shorter race simply because they share a webpage.
This is a mountain trail course around the Mogollon Rim rather than a road marathon. The listed 26.7-mile distance also exceeds 26.2 miles. Prepare for sustained climbing, careful descending and time on uneven ground, and assess checkpoint progress using realistic trail effort rather than a road pace extrapolation.
The 42K begins along the Arizona Trail and Highline Trail before climbing toward the rim via the Donahue Trail. That opening sequence makes restraint useful: settling into the first runnable miles should leave capacity for the climb that follows. Download the current 42K track and review the transitions with the official course description before relying on phone coverage.
The organizer lists Friday collection at Old County Inn and Sunday morning collection at Pine Trailhead for the 42K. Confirm the final window, parking and finish transport instructions in the participant information. Some linked material is explicitly a 2026 100-mile guide; it cannot establish the new 42K operations. Check the final required gear and weather guidance, practise carrying supplies and follow withdrawal or cutoff instructions if conditions or your progress change.
Confirmed race date
Mogollon Monster 42K: September 12, 2027. Verified on October 14, 2026 against the official event information.
2027 date status
The confirmed next race date is September 12, 2027. Match the year and distance on your entry confirmation before arranging travel.
Current race identity
These details identify the race. Previous-edition start, route and transport information must be checked against the next participant guide. The elapsed race date is removed until the organizer publishes an exact future date.
Training calendar anchors
Calendar arithmetic does not prove that a runway is appropriate. Choose the opening week only after it matches recent consistency and recovery.
Use the training start-date calculator, compare the trail ultra training path, and use the printable plan overview only as a planning map. Do not compress missed weeks to force a date.
What the organizer still needs to confirm
Recheck the represented distance, registration, venue, start waves, course, cutoff, aid, equipment, cancellation terms and participant guide. Use the race-week forecast rather than historical averages.
Prepare for the confirmed edition
The useful work now is training you can repeat. Start training with 26weeks after choosing a real finish line and a runway that fits current readiness.