Ultra Trail Chattanooga by UTMB 20K
Works· 21 km, +410 m · 2.1–2.9 h on your feet · 1 wk easy running after
20 m of climb per km — rolling; you will run almost all of it.
Course, cutoffs and race-day guide
There is time for a full build before this one.
the dark row marks weeks with real climbing in them