A marked hillside circuit sets the tone: rough grass underfoot, uneven ground, and small rock clusters demand attention to your line. Harry's King of the Hill is a "last-person-standing hill repeat event," offering a stripped-back backyard-ultra feeling with a sharper vertical challenge.
Each hour requires another lap featuring "two major climbs and one steep descent." Anyone who "fails to finish a lap within the hour is eliminated." The event is for adults only, with support crews operating from a designated personal rest area, live results tracking on-site, and a global livestream running. Specific quirks for trail runners include an ice bath recovery zone, an on-site tattoo artist, and the fact that a previous livestream ran for 90 consecutive hours.