Race pace

Marathon du Mont-Blanc pace calculator

90K · Expected Fri, 25 June 2027 · 90.3 km · 6770 m D+

This distance date is a planning estimate. Pace calculations use the mapped course and do not depend on the schedule.

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Race-day pacing plan

Set a finish target and stopped-time budget, then use the GPX-derived split table for where the course should feel slow or runnable.

Official cutoff
26h 00
Clock pace
14:41 / km
Finish time including stops.
Moving pace
14:21 / km
What your watch needs while moving.
Effort pace
7:17 / km
Uses climb and descent adjusted distance.
Cutoff buffer
+3h 54
At the selected finish target.
Course from GPX
90.3 km
6770 m D+ · 6000 m D-
Adjusted workload
178.0 effort-km
100 m climb = 1 km; 300 m descent = 1 km.
Hardest block
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Split plan will appear below.

Course-aware split plan

Five-kilometer blocks from the GPX, weighted by climb and descent load.

Start 04:45