Arrive at a climb heavy 50K with a body that can climb for hours, a gut that still works at hour five, and legs that can run the descent home.
This is the structure I used to finish the Pikes Peak Ultra, 49 miles and 10,561 feet of climbing, two years after being told in a hospital that I might not run again, scaled to the 50K. Same weekdays, same strength, same fueling progression as my 50 mile plan; only the weekend long runs are shorter, because a 50K does not need a 22 mile training run.
Written by a retired Army Infantry Major, Ranger School graduate and former instructor, Best Ranger competitor, and UESCA Certified Running Coach.
How it works:
Sixteen weeks: three base, three build, deload, three build, deload, three peak with a full dress rehearsal, taper, race. Every week builds on the last and every fourth week backs off.
Heart rate discipline is the pacing engine. A Week 1 field test sets your Threshold Heart Rate, every run is a percentage of it, and a Week 11 retest keeps it current. The 82 percent easy day guardrail and the 88 percent climbing guardrail are information to learn your own normals, never a reason to stop a run.
Back to back weekends from Week 4: a flat aerobic run on Saturday so the Sunday mountain run starts tired, because running tired is the ultra skill. Sunday long runs grow from 10 to 18 miles, with race effort segments on the climbs from Week 8.
Thursday vert sessions from 1,000 to 2,500 feet with descent practice, and a treadmill version for athletes without mountains.
Three strength sessions a week, run first and lift later, plus a ten minute nightly Durability Block for the three places ultra runners break: lateral hip, thoracic spine, lower leg.
Fueling built in: 30 to 60 grams of carbohydrate an hour with a sodium protocol, rehearsed on every long run so race day is a habit.
What you get:
Fully structured workouts in percent of Threshold Heart Rate with RPE alongside, so they sync to Garmin, Coros, Wahoo and Apple Watch and scale to you. A Read This First guide on Day 1 with three attachments: Durability Block, Fueling Progression, and the Race Logistics Pack (drop bag SOP, crew sheet, pacing card, and the two rules from my own race, one of which cost me seventy minutes). A short note every Monday telling you what the week is for.
Who this is for:
Trail runners with a marathon or two behind them, or a road half and real trail time, running 20 to 25 miles a week, about sixteen weeks from a climb heavy 50K with 4,000 to 8,000 feet of gain. Five to eight hours of running a week at peak plus two to three hours of strength. If this is your first race past a marathon, this is the plan. When it is done, Mountain 50 Miler: Run Strong is the next step on the same structure.
Equipment needed:
Hills or a treadmill that reaches 12 to 15 percent. Dumbbells or kettlebells, a band, a bench, a pull up bar or a place to row. A running vest or belt. A heart rate monitor, chest strap recommended. Poles if you will race with them.
Communication: self guided plan. Questions are welcome through TrainingPeaks messaging, and one on one coaching with Pacheco Endurance is available if you want the plan built around your race and your numbers.
The structure works. The work is up to you.
UESCA Certified Running Coach and retired Army Infantry Major. Ranger School graduate, former Ranger instructor, Best Ranger competitor. Medically retired in 2024 and told in the hospital I might not run again. Rebuilt through running: two marathons, a half marathon, 15 laps at a Backyard Ultra, and the Pikes Peak Ultra 50 miler. Author of the Run Strong plans on TrainingPeaks: half marathon, AFT two mile, CFT, and mountain 50K and 50 miler. Your body adapts to what you ask of it. Ask more.