ATHX Training in Flatiron NYC

What is ATHX

ATHX is a hybrid fitness competition that combines strength, endurance, and metabolic conditioning into one continuous 2.5-hour event. Athletes move through six dedicated workout and recovery zones, testing strength, stamina, and endurance. A unique aspect of ATHX is that roughly half the event is spent on refueling and recovering between tests, placing the format somewhere between a Hyrox race and the CrossFit Games.

Compared to Hyrox, ATHX focuses more on strength and less on running. Compared to CrossFit, ATHX places no emphasis on high-skill Olympic lifting or gymnastics. Originally developed in Europe, where it is now well established, ATHX is expanding in the United States. The result is a demanding but accessible test of overall fitness — and a unique training program.