21.1 km
6:10 /km
Reforma both ways.
City, altitude, monumental.
One of the world's highest big-city marathons — 2,240 m of altitude.
Because the streets themselves have carried footsteps for centuries — you are joining a very long relay, not starting a new one.
Altitude changes everything. Hold every effort one gear below intuition.
A physical profile — respect the ascents; let the descents restore the breath.
Warm to hot. Early start, shade-line and salt matter — carry more water than you think you need.
A warm regional start — clubs in matching kit, coffee vans, a local mayor with a microphone. Human-scale and unhurried.
Steady, generous local support along the main boulevards and finish straight; genuine strangers-turned-friends handing out orange slices in the suburbs.
Nearly the whole race is a quiet segment. Save the deepest presence for kilometres 17–25 where the land narrows.
Sealed city tarmac — closed to traffic on race day
Race day is genuine trail terrain with elevation. Wheelchair and stroller access is not viable on the official line — a paved shorter alternative in the host city is suggested under recovery variations.
Chapultepec walk, cacao, long night.



6:10 /km
Reforma both ways.
6:50 /km
Chapultepec loops.
5:00 /km
Even splits, altitude honest.
Soft, restorative · step-free, wheelchair friendly
Only forward · run with the land
Forest-grounded · deeper trails, longer days
Long, open lines · quiet lanes, long horizons
Shared maps · shared GPX engine · shared Soul Signature language. Whichever door you enter, the craft standard is the same.