Race pace

Marathon du Mont-Blanc pace calculator

23K · Sat, June 27, 2026 · 24.2 km · 1613 m D+

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

6h 00

Hours Minutes Stopped min

Clock pace

6:49 / km

Finish time including stops.

Moving pace

6:29 / km

What your watch needs while moving.

Effort pace

3:54 / km

Uses climb and descent adjusted distance.

Cutoff buffer

+3h 15

At the selected finish target.

Course from GPX

24.2 km

1613 m D+ · 0 m D-

Adjusted workload

40.3 effort-km

100 m climb = 1 km; 300 m descent = 1 km.

Hardest block

Split plan will appear below.

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

Start 08:00