ATHX vs Nuts Challenge : distance, stations, prix et difficulté comparés (2026-27)

ATHX is a UK-born hybrid fitness competition, co-founded by coach Ollie Marchon, that now runs events across the UK, Europe and the United States. Each ATHX event is a continuous 2.5-hour session across six zones. Every competitor completes the same three workouts: a Strength zone (20 minutes), an Endurance zone (30 minutes) and a MetCon X zone (30 minutes). These are separated by a warm-up zone, a refuel zone and a recovery zone. The workouts and movement standards are published for each season.

Athletes enter as singles or pairs, in an ATHX or a harder ATHX PRO category, and pairs can be same-sex or mixed. Season results lead to the ATHX Finals, held in Lisbon in 2026. The fixed rest periods and clear divisions make ATHX accessible to first-timers, while the strength element suits athletes who lift as well as run and row.