Ultra
The long stuff. 50k and up, with aid and cutoffs.
The line
Ultra is a different sport wearing the same shoes. It's about eating while you move, pacing the dark, and not quitting at mile 40.
How we map it
distance 50k → 100mi cutoffs logged per aid aid water + calories best for the stubborn
When to run it
Once you've run a season of long trails and still want more. Build slow, practice the night, and respect the cutoff.