Pacing Plan

GPX 1.1 supported. Waypoints become aid station markers.

Start from

What you get

Set a target finish time — get pace, arrival clock time and cutoff buffer for every aid station, adjusted for climb and fatigue.

Example · Western States 100sample
100.2 mi18.1k ft23.0k ft
Aid stationCumPaceArrive
Start0.0 mi05:00
Lyon Ridge10.8 mi13:1207:26
Robinson Flat30.7 mi15:3011:57
Foresthill62.0 mi14:0619:06
Finish100.1 mi16:4005:00 +1

How it's calculated

  • Grade-adjusted pace (GAP): a Minetti energy model turns each climb and descent into flat-equivalent effort — you slow on the ups, speed up on the downs, automatically.
  • Fatigue fade: your decline rate (default 18%) runs you a touch faster early and slower late, like a real race.
  • Trail factor: road 1.0 · fire road 1.15 · technical 1.25 scales every segment for terrain.
  • Hits your target: the solver back-calculates the base pace so every segment adds up to exactly your goal finish time.