If you train at a box or follow functional fitness at all, ATHX has been showing up more and more. It's the hybrid fitness competition that walked straight out to challenge HYROX — backed by adidas and, as of 2026, an official CrossFit partner event. Past the hype, though, most people still have the same questions: what exactly is ATHX, what does a competition look like from the inside, and how is it any different from what's already out there?
If you still want the big-picture frame of competitive fitness, keep what HYROX is handy — it's the benchmark everyone measures against. Here we take ATHX apart piece by piece. And since all of it is trained and contested on a box floor, we'll also get to what that floor has to survive: our artificial turf for the box.
01What ATHX is
ATHX (full name, ATHX Games) is a hybrid fitness competition: one day that measures your strength, your endurance, and your ability to keep working while tired. It isn't an obstacle race and it isn't a standard CrossFit meet — it's its own format, built for the "complete" athlete, the one who lifts, runs, and holds on without having to be the best at any single one.
Where it comes from: the merger that made it
ATHX started in the UK in 2023, when two functional-fitness organizers — Strength in Depth and National Fitness Games — folded their events into a single series. It's grown fast since: more than 25 competitions across Europe and the United States, and a community that keeps adding numbers.
Why everyone's talking about it now
Two things put it on the map. First, the adidas backing, which gave it brand muscle and production value. Second, and more recent: ATHX became an official CrossFit partner event — a nod that pulls thousands of box athletes toward a competition format that used to sit somewhere between their sport and HYROX.
02What a competition looks like
Here's the big ATHX difference: it isn't one continuous test, it's a two-and-a-half-hour day split into zones. You compete in blocks, with set rest between them, and that changes everything about pacing. You're not holding one effort start to finish — you're arriving fresh to each zone that counts.
The six zones, one by one
An ATHX competition runs through six zones, in this order:
- Warm-Up, ~30 min. Guided prep. Doesn't score.
- Strength, ~20 min. First scoring zone.
- Refuel, ~10 min. Rest and recharge between blocks. Doesn't score.
- Endurance, ~30 min. Second scoring zone.
- Recovery, ~30 min. Second set rest. Doesn't score.
- Metcon X. Third and final scoring zone.
The key detail, the one a lot of people don't learn until they compete: of the six, only three score — Strength, Endurance, and Metcon X. The other three are warm-up, refuel, and recovery. That structure with built-in rest is exactly what lets you chase max strength in one zone and empty the tank in a metcon a little later.
What each scoring zone involves
- Strength. This is what really sets ATHX apart. In the 2026 season you string together three lifts to a max: strict press at 1RM, back squat at 3RM, and deadlift at 5RM. Your score is the total weight moved. Real maximal strength — not light-weight, high-rep "strength endurance."
- Endurance. About 22 minutes to cover as much ground as possible, alternating running and rowing, switching every 750 meters (1,000 in the Pro division). This is the pure aerobic engine: no fine technique saves you here, you need a base.
- Metcon X. The classic "chipper": a list of functional movements done straight through, as fast as you can, with a 25-minute cap. The work under fatigue — the part that shows whether you've got gas left at the end of the day.
How scoring works: the sum of placings
This is what confuses people most at first, and it's also what explains the strategy. ATHX doesn't add kilos to meters to reps (different units). Instead you're ranked within each scoring zone, and then your placings get added up. Lowest total wins.
An example makes it clear: finish 5th in Strength, 12th in Endurance, and 3rd in Metcon X, and your result is 5 + 12 + 3 = 20. Someone who wins Strength but lands 20th in Endurance and 10th in Metcon totals 31 — behind you, even though they won a zone. That's the all-around lesson in a nutshell: better to be solid across all three than to crush one and crater in another.
03How it differs from HYROX
The question everybody asks, and the answer's clearer than you'd think. HYROX is a continuous, standardized race: eight kilometers broken into eight 1,000-meter runs, each followed by a functional station, with no real breaks from gun to finish. It runs 60 to 90 minutes and, because it's identical worldwide, lets you compare times down to the second.
ATHX plays a different game. It's longer — about two and a half hours — it's built in zones with rest, and above all it puts maximal strength into the mix: in HYROX you never chase a 1RM, in ATHX it's a third of the score. Put simply: HYROX rewards the athlete who runs hard and holds a measurable pace; ATHX rewards the most complete athlete, the one who also lifts. Neither is "better" — they measure different things. (The deep, station-by-station comparison is its own article; here we're staying with the big picture.)
04Who ATHX is for (and who it isn't)
Like any format, ATHX fits some profiles perfectly and others not at all. Worth knowing before you sign up.
It's going to fit you if:
- You come from CrossFit or a strength gym and don't want to give up heavy lifting to compete.
- A long, complete challenge appeals to you more than a one-hour sprint — you like managing a multi-hour day.
- You want an event that measures your max strength on top of your cardio, not just the second one.
HYROX (or something else) might suit you better if:
- Running is your thing and you want a short, intense, second-by-second measurable race.
- Maximal strength work doesn't interest you and you've no desire to go near a 1RM.
- You'd rather have a worldwide-identical format so you can compare your time with anyone's.
And if you're just starting out, don't count yourself out: that's what the Lite division is for, with scaled loads and demands. ATHX isn't only for veterans — it's for anyone who wants to test all three legs of fitness at their own level.
05The divisions: from Lite to Pro and Pairs
The competition splits into several divisions so almost anyone can enter:
- Lite: the scaled version, with loads and demands adjusted for newcomers.
- ATHX: the standard individual division, the "reference" format.
- Pro: for high-level athletes, with the heaviest loads and longest distances (this is the one running 1,000 meters per leg in Endurance).
- Pairs / Teams: the work is split between two, one running while the other rows, for example.
That ladder is part of the appeal: you can start in Lite and have years of progression ahead without ever changing competition.
06How to train for ATHX
Because three very different capacities score, preparing for ATHX isn't about hammering one. The trick is to train all three without one stealing from the others:
- Maximal strength. Work the press, squat, and deadlift in low rep ranges (sets of 1 to 5), because the Strength zone is won with kilos, not stamina. It's also what cardio-first athletes take longest to build.
- Aerobic engine. Put in rowing and running intervals, and train the transitions between them: switching movement every few hundred meters taxes you more than it looks. The rower is your best friend here.
- Metcon under fatigue. Do functional circuits when you're already tired, so you learn to hold technique with your heart rate pinned. That's what decides the last block.
The usual trap is spending all your time on what you're already good at. The strength athlete who won't row and the runner who won't lift both show up short for half the zones. ATHX rewards balance, and training has to reflect that.
07What a box needs to train for ATHX
This is where ATHX becomes a facility question, not just an athlete one. A box that wants to prep its members for ATHX has to cover the three scoring zones, and that demands a floor that takes very different things at once: deadlifts and squats at the limit (loaded bars that drop), running and rowing intervals, and a Metcon X with movement and floor work.
That's exactly where a lot of floors fall down. Rubber marks and smells under dragging; hardwood won't forgive a deadlift bar at 5RM. Which is why technical turf has become the standard for these zones: our artificial turf for the box absorbs the impact of a dropped bar, takes dragging without matting down, gives constant grip for sprints, and — because the fiber has no grain — wears evenly even when everyone trains on the same lane. A floor built so ATHX's three zones can share one room without tearing it up.
08The bottom line
ATHX is the hybrid fitness competition that showed up as the big alternative to HYROX: a roughly two-and-a-half-hour day, in zones, where only Strength, Endurance, and Metcon X score, and your placing comes from the sum of your rankings across the three. Its signature is putting maximal strength where HYROX puts only running and stations, which makes it the test of the most complete athlete. With divisions from Lite to Pro, adidas and CrossFit behind it, and training that forces you to mind all three legs at once, it has every look of sticking around.
If you run a box and want the room ready for your members to train the three zones without wrecking the floor, tell us about it and we'll look at it with your measurements.
