Ultra Trail Chattanooga by UTMB 50K
Works· 51 km, +1,163 m · 6–8.4 h on your feet · 3 wk easy running after
23 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