You simulate a HYROX race in a normal gym by running the eight 1km runs on a treadmill or nearby loop and substituting each station with the closest available equivalent. SkiErg or hard rowing, a heavy prowler or plate push, a rope or band pull, burpee broad jumps, real rowing, dumbbell carries, walking lunges with a plate, and wall balls or thrusters. A faithful simulation is about replicating the sequence and the fatigue, not owning official kit. The point of the exercise is that a normal commercial gym already holds most of what you need: a treadmill, a rower, dumbbells, a wall and a medicine ball cover six of the eight stations outright.

Why simulate at all?

Because HYROX is a sequencing and pacing problem as much as a fitness one, and you cannot rehearse either in isolated sessions. A simulation teaches you what your compromised running actually feels like, where your form breaks under fatigue, and whether your pacing plan survives contact with reality. In my coaching experience, the athletes who blow up on race day are almost always the ones who never ran the whole thing end to end. You do not need the exact stations. You need the accumulated fatigue in the right order.

What substitutes work for each station?

Match the physical demand, not the apparatus. In a normal gym the two genuine gaps are the SkiErg and the sleds, and both have honest stand-ins. The SkiErg is common now, but hard rowing or even fast band pull-downs cover the same overhead-pull fatigue. For the sleds, a loaded prowler, a plate on a towel, or heavy leg press supersets replicate the horizontal grind. The pull becomes a rope or heavy band row. Burpees, rowing, carries, lunges and wall balls you can reproduce almost exactly. The one rule that separates a real simulation from a circuit is keeping the distances and rep counts honest, so the fatigue lands in the right order.

How do you actually run the simulation?

Treat it like race day so the rehearsal is worth something. Follow this sequence.

1. Warm up as you would for a race, then start with a 1km run at target pace.
2. Move immediately to station one, keeping transition time under a minute to mimic the roxzone.
3. Alternate run and station through all eight, holding your planned pacing rather than racing early legs.
4. Record every 1km split and station time so you can analyse your fade afterwards.
5. If a full simulation is too much, run a half (4 runs + 4 stations) and build up over the block.

"You do not need a HYROX venue to learn what HYROX does to you. Give me a treadmill, a rower and a wall, and I will show an athlete exactly where their race falls apart, which is the whole point of doing it before race day," says George Wootten, Executive Coach, THETA.

How often should you do it?

One full or part simulation every four to six weeks is plenty. It is a demanding session that eats into your recovery, so it earns its place as a test, not a staple. Use it to check your pacing plan, measure your fade, and expose weak stations, then feed those findings back into your training. Doing it too often just accumulates fatigue and stops you building the underlying qualities. This is why THETA BLUEPRINT drops a full or part simulation into the block roughly every four to six weeks as a readiness checkpoint rather than leaving you to guess when to test. The simulation reveals the gaps, your regular training closes them.

Where gym simulations mislead you, and how to correct for it

A gym simulation is a rehearsal, not a photocopy, and it lies to you in three predictable ways. Correct for each and the numbers you take away are worth trusting.

First, transitions. In a busy commercial gym you will queue for a rower or clear plates off a bar, and that dead time flatters your heart rate because you recover during it. On race day the roxzone is a jog of 30 to 60 metres with no real rest. If you cannot control the gym environment, use a stopwatch: cap every transition at 45 seconds whether or not the kit is free, and if it is not free, hold a plank or march on the spot rather than standing still. The fatigue has to keep stacking.

Second, the sled substitute. A prowler on rubber flooring or a plate on a towel almost never matches the friction of a competition sled on carpet, so your sled surrogate is usually easier than the real thing. Do not read a comfortable plate push as evidence your sleds are sorted. Treat the sled stand-in as leg conditioning and pacing practice, and judge your actual sled readiness at an open gym or a race-format event instead.

Third, the runs. A treadmill paces you; the belt keeps turning whether your legs are cooperating or not, which hides the pacing decisions you have to make outdoors. Set at least 1 per cent incline, and once per block run at least one simulation on a measured outdoor loop so you own the pacing yourself rather than outsourcing it to the machine.

Common questions

Can I do a HYROX simulation without a SkiErg or sled?

Yes. Substitute the SkiErg with hard rowing or band pull-downs and the sled with a prowler, plate push or heavy leg press. The goal is to replicate the effort and the sequence, not to own identical equipment.

How long should a HYROX simulation take?

Expect roughly your target race time plus a little for improvised transitions, so most amateurs finish in 75-110 minutes. If that is too much early in a block, run a half simulation and build up to the full distance.

Should I go all-out in a simulation?

Usually no. Treat it as a race-pace rehearsal rather than a maximal effort, especially early in a block. A controlled simulation teaches pacing and exposes weak points without the deep recovery cost of an all-out race.

How often should I simulate a full race?

Every four to six weeks is ideal. It is a hard, fatiguing session best used as a periodic test of readiness, with your regular training doing the work of building fitness between simulations.

What is the most important thing to measure?

Your run fade. The difference between your first two 1km splits and your last two. That number is the clearest marker of compromised-running ability and usually predicts your finish better than any single station time.

Will other gym members get in my way during a simulation?

Almost certainly at peak times, which is why a simulation is best run in an off-peak window when you can hold a rower, a treadmill and a stretch of floor without queuing. If you cannot avoid the crowds, pick a fixed corner, keep your kit at your feet, and accept that you may have to substitute a busy machine on the day. The one thing to protect is the transition discipline: do not let a queue turn a 45-second roxzone into a two-minute rest, because the accumulated fatigue is the whole point of the session.

Can I simulate on a treadmill?

Yes, though set it to at least 1% incline to better reflect outdoor effort, and be ready for the awkward transitions on and off the belt. Many athletes simulate entirely on a treadmill and rower, which is perfectly valid for training purposes.

Sources

• HYROX official race format, station order and public results (hyrox.com)
• THETA coaching data, 2024-2026
• Established principles of race-specific testing and pacing