Race pace

KAT100 by UTMB pace calculator

Marathon Trail 51K · Sat, August 8, 2026 · 51 km · 3250 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
12h 00
Clock pace
12:00 / km
Finish time including stops.
Moving pace
11:42 / km
What your watch needs while moving.
Effort pace
7:09 / km
Uses climb and descent adjusted distance.
Cutoff buffer
+1h 48
At the selected finish target.
Course from GPX
51.0 km
3250 m D+ · 0 m D-
Adjusted workload
83.5 effort-km
100 m climb = 1 km; 300 m descent = 1 km.
Hardest block
Loading
Split plan will appear below.

Course-aware split plan

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

Start 07:00