Splitshape

39 courses, real data

Marathon & half marathon pacing plans, by race

Real elevation profiles, typical race-day weather, and a live AI-generated sample strategy for each course, not a generic template with the city name swapped in.

39 races

October 2026

November 2026

December 2026

February 2027

March 2027

April 2027

May 2027

August 2027

September 2027

October 2027

Your race isn't here?

Upload the course GPX from the organizer or your watch and get the same km-by-km plan.

Build a plan from a GPX