812Trail Run from Les Houches to Les Plans · 180.6 km · +8432m
Use the pace you can sustain on runnable flat trail. TrailSplits then adds route-specific climbing, descending, and surface load to estimate moving time.
Current flat pace: 12:00 min/km. Climbs and descents are added on top.
How this estimate works: Each 100m of climbing counts as 0.85 extra flat km per 100m at your chosen pace. Descending adds 0.08 extra flat km per 100m when the route is steep or trail-like.
Routing-engine duration for this saved route was 42h 07m; this calculator treats that as metadata and uses the terrain model above for user-facing estimates.