ATHX

ATHX is a continuous fitness competition structured across six zones, designed to test strength, endurance, and metabolic conditioning within a single two-and-a-half hour event window. Unlike most fitness events, athletes move through the competition in a fixed sequence of zones rather than a repeated circuit — progressing from warm-up through strength, refuel, endurance, recovery, and MetCon X.

The zone structure and timing are consistent across all events. The Strength Zone rewards maximum barbell output, the Endurance Zone tests sustained aerobic capacity, and the MetCon X Zone combines functional movements under time pressure. The specific workouts within each zone are announced annually — see the Event Breakdown for current season detail.

Divisions are available for individuals and pairs across three levels — Lite, ATHX, and Pro — with weight and distance prescriptions varying by division.

Most ATHX events are held in large indoor arenas across Europe. However the event has expanded to outdoor settings — most notably the ATHX Invitational Miami Beach in March 2026, held outdoors on South Beach. Environment conditions vary by event and location, so check the official listing for the event you are entering.

• Continuous 2.5-hour competition structured across six sequential zones, each with its own time window
• Zones in order: Warm-Up (30 min) → Strength (20 min) → Refuel (10 min) → Endurance (30 min) → Recovery (30 min) → MetCon X (30 min)
• Strength Zone: Three barbell lifts — strict press, back squat and deadlift — each scored on the heaviest weight lifted for the prescribed reps
• Endurance Zone: Laps of a marked running track and distance on a rowing machine, taken in turn within a 22-minute cap and scored on total metres covered
• MetCon X Zone: A sequence of functional movements scored on time, including dumbbell ground to overhead (GTOH), lifting a dumbbell from the floor to locked out overhead
• Workouts and loading are updated each season — current details are in the Event Breakdown.
• Lite, ATHX and Pro: The same zones at three levels. Loads and distances rise with each level, and Lite uses easier versions of some movements, such as stepping over the box rather than jumping
• Pairs: Two athletes share one score. In the Endurance Zone one runs carrying a baton while the other rows, swapping once the run is complete. In MetCon X the pair divides the reps as they choose, but neither moves to the next movement until the current one is finished
• ATHX Finals: The top four in each category at every ATHX event, plus places by age group, are invited to the season's ATHX Finals
• Movement standards are strictly judged. A repetition that does not meet the standard is called as a no rep: it does not count, and the athlete must return to their last successful position before continuing. Full detail is in the published movement standards.

ATHX is open to anyone who trains regularly and wants a structured multi-discipline challenge. There is no qualifying time, no technical prerequisite, and no Olympic lifting in any division — the event is built around compound barbell movements, running, rowing, and functional exercises that are learnable for most gym-trained athletes.

You do not need a competition background to attempt ATHX. You do need a realistic baseline:

• If you regularly lift in a gym, can work up to a one-rep maximum strict press and a five-rep maximum deadlift with reasonable confidence, and can sustain effort on a rower or treadmill for 20+ minutes, you have the foundation for the ATHX division.
• If you are newer to structured lifting or want a lower-intensity entry point, the Lite division offers shorter running distances and lighter loads — six months of consistent gym training is a reasonable baseline.
• If neither description fits yet, ATHX publishes workouts each season in advance, which means you can train specifically to the standard before your event — the preparation timeline is concrete, not open-ended.

The three divisions — Lite, ATHX, and Pro — are available as individual or pairs. The Pro division significantly increases barbell loads and running distances and is suited to experienced athletes with a strong strength and endurance base. Pairs is available across all divisions, which halves the individual workload and is a practical route in for those tackling the event for the first time.

ATHX began in the UK in 2023 and has grown into a series running across the UK and mainland Europe, including Germany, France, Spain, Italy and the Netherlands. Its North American calendar opened with the ATHX Invitational Miami Beach, held outdoors, and the 2027 season is the largest in its history, with more than twenty cities across the UK, Europe and North America.

The series now has a competitive structure of its own: the leading finishers in each category at every event are invited to a season-ending ATHX Finals. ATHX is also an official CrossFit Partner Event Series, and holds a four-year global partnership with adidas as its performance partner.

For an athlete deciding whether to commit, these are signs of a series built to last. There is a defined season, a route from a single event to a Finals, and partners committed over several years. A result at any ATHX event now counts for more than the day itself.