Trail race training blueprint
You don't just train for UTMB. You prepare for the mountain.
At 55.5 km with 3,499 m of elevation gain, this is an ultra-distance effort that demands careful fueling, pacing, and mental resilience. With 63 m of vertical per kilometer, expect significant hiking sections — training should emphasise power-hiking and efficient descending. The official cutoff is 14.5 hours, so pace management starts from week one.
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Expect high-alpine passes (2,500 m+), technical descents, and long night sections. Train on varied terrain with significant vertical.
Late August Alps weather is volatile: sun, rain, snow above 2,500 m. Night temperatures drop to near-freezing at altitude.
Swap concrete training days, or mark a day done/skipped without changing the race-specific template.
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Key sessions include route buttons that deep-link into the Planner with pre-filled distance + elevation filters.
The plan is scaled from the race profile, not a generic road-running template.
Training emphasis: sustained climbing, downhill resilience, and efficient hike-run transitions.
If your race has a time limit, this estimates the minimum average pace and whether your target finish time clears the cutoff.
Use the personal subscription URL for a live saved plan. The snapshot .ics is useful for a one-time calendar import or backup.
Disclaimer: this plan is general information, not medical advice. Adjust based on fatigue, experience, and injury history.
At 55.5 km with 3,499 m of elevation gain, this is an ultra-distance effort that demands careful fueling, pacing, and mental resilience. With 63 m of vertical per kilometer, expect significant hiking sections — training should emphasise power-hiking and efficient descending. The official cutoff is 14.5 hours, so pace management starts from week one. This training plan adapts the 16-week structure specifically for 55.5 km with 3,499 m of elevation gain, scaling weekly volume and vert targets so your body is ready for race-day demands.
Ultra-distance trail races require a different approach to training than road marathons. Time on feet matters more than pace, and vertical accumulation is as important as distance. The plan includes back-to-back long days in peak weeks to simulate the fatigue of late race stages, plus dedicated recovery weeks every fourth week.
The 16-week programme is divided into four phases designed around the specific demands of 55.5 km and 3,499 m of climbing:
At 63 m of vertical per kilometer, the UTMB - Ultra-Trail du Mont-Blanc OCC 55K course is significantly steeper than average. Training should include dedicated power-hiking sessions (poles recommended), steep downhill technique drills, and eccentric strength work for quad resilience. Practice eating and drinking on steep climbs — this is where many runners lose time to nausea and energy dips.