Key takeaways
- Every load in Hyrox is published and fixed, so “how strong do I need to be” has an exact answer rather than a vague one.
- The first physiological study of the format concluded that Hyrox places moderate to low demands on maximum strength compared with other high-intensity functional formats.
- Finishing time in that study tracked aerobic capacity, endurance training volume and body composition rather than how much anyone could lift.
- Strength-determined stations are still where the field reshuffles, and where slower athletes lose the most absolute time.
- The requirement is not a big one-rep max. It is the ability to move a fixed moderate load again with your heart rate near maximum.
Almost every other endurance event asks you to guess. Hyrox does not. The sled is the same sled in Glasgow and in Chicago, the sandbag weighs what the rulebook says it weighs, and the wall ball target is at a fixed height. That makes “how strong do I need to be” one of the few questions in fitness with a genuinely precise answer — and the answer is probably lower than you fear and higher than you can fake.
The loads are published. Here they are.
Eight one-kilometre runs, each followed by one station, in a fixed order. The running never changes between divisions. Only the loads do.
| Station | Women Open | Men Open / Women Pro | Men Pro |
|---|---|---|---|
| SkiErg | 1,000 m | 1,000 m | 1,000 m |
| Sled push, 50 m (4 × 12.5 m) | 102 kg | 152 kg | 202 kg |
| Sled pull, 50 m (4 × 12.5 m) | 78 kg | 103 kg | 153 kg |
| Burpee broad jumps | 80 m | 80 m | 80 m |
| Row | 1,000 m | 1,000 m | 1,000 m |
| Farmers carry, 200 m | 2 × 16 kg | 2 × 24 kg | 2 × 32 kg |
| Sandbag lunges, 100 m | 10 kg | 20 kg | 30 kg |
| Wall balls, 100 reps | 4 kg | 6 kg | 9 kg |
Sled figures include the weight of the sled itself. Wall ball targets are 2.70 m in the women’s divisions and 3.00 m in the men’s. Every division runs the same 8 × 1,000 m. Loads above are the published 2026/27 singles rulebook figures — check the current rulebook for your season before you set your training loads.
Read it as a specification, not a challenge. Nothing here is a one-rep max for a trained adult, and every line has repetition in common: 50 metres of sled, 200 metres of carry, 100 reps.
What the research says about strength and finish time
The first physiological study of the format put eleven recreational athletes through a simulated Open-division race. Faster finishing times correlated with higher maximal oxygen uptake, greater endurance training volume and lower body fat percentage. The authors concluded that Hyrox is a high-intensity functional format with an emphasis on endurance capacity and moderate to low requirements in terms of maximum strength when compared with other formats in the same family (Brandt et al., Frontiers in Physiology 2025). Eleven athletes is a small sample, and it deserves to be read as a first signal rather than a settled fact.
The much larger dataset points the same way with an important caveat. Across 39,696 individual PRO and ELITE results from the format’s first seven seasons, running accounted for roughly half of total race time and overall performance was most strongly associated with running performance. But the strength-determined stations showed markedly greater rank reshuffling, and their effect on total race time was much larger among slower performers (Rappelt et al., Frontiers in Physiology 2026).
Put those together and you get the honest answer. Strength does not win a Hyrox. Weakness loses one, and it loses it worse the slower you are.
The distinction that matters: nobody is asking you to prove a maximum. They are asking whether a fixed, moderate load is still moderate on your fifth attempt, with a heart rate near its ceiling, after six kilometres of running.
Maximum strength versus strength endurance
These are related but not the same quality, and the training that builds them differs. Lighter loads taken close to failure produce hypertrophy comparable to heavy loads, but strength gains favour the heavier end of the spectrum (Schoenfeld et al., Eur J Sport Sci 2016). For a Hyrox athlete that cuts both ways.
You want enough heavy work that the rulebook loads sit low in your range — a sandbag that is a third of what you can comfortably carry behaves completely differently from one that is most of it. And you want most of your race-specific work done at the actual competition loads for the actual distances, because that is the quality being tested. A block that does the first and then transitions into the second is what Hyrox Strength Build is for. If you have no real lifting base at all, build one first — The 5×5 Method does that in the simplest way available, and progressive overload is the principle underneath it.
The stations that actually test strength
Four of the eight are genuinely load-limited: both sleds, the farmers carry and the sandbag lunges. The rest are not strength problems for anyone who trains.
- Sled push. Less a squat-strength test than a horizontal force-production test with almost no eccentric component. Body position, shin angle and locked arms matter more than your back squat. Notably, in the simulated race the two heaviest stations were completed the fastest — a median of 128 seconds for the push and 155 for the pull (Brandt et al., Frontiers in Physiology 2025).
- Sled pull. A posterior chain and grip problem more than a leg problem. Rhythm, foot placement and hand-over-hand efficiency beat raw pulling strength.
- Farmers carry. Two hundred metres of grip, trunk stiffness and turning under load. Almost nobody fails this fresh, and plenty of people fail it in the race.
- Sandbag lunges. One hundred metres of unilateral work with an awkward axial load while breathing hard. The limiter is usually the ability to keep the trunk upright, not quadriceps strength.
Grip is the sleeper limiter
The sled pull and the farmers carry both bill your hands, and they arrive at stations three and six — after the SkiErg and the row have already asked for them. Worth being precise here: in the simulated race, hand grip strength was measured as a candidate determinant, and it was not among the variables that correlated significantly with finishing time in that small sample (Brandt et al., Frontiers in Physiology 2025). Maximal grip strength is not what predicts a fast race.
The coaching case is different from the correlation. A failed grip is not a slower rep, it is a full stop, and a full stop at 180 metres of a 200-metre carry is expensive in a way an average doesn’t capture. Train carries for distance and time at competition load rather than testing crush strength, and stop gripping the SkiErg and rower handles harder than they need.
One hundred wall balls is a leg-endurance test in a strength costume
Four kilos to 2.70 m, six kilos, or nine kilos to 3.00 m — none of it is heavy. One hundred reps of a full squat-and-press pattern at the end of roughly eighty minutes is a different proposition. In the simulated race, heart rate, blood lactate and perceived exertion all reached their highest values of the entire event at this station (Brandt et al., Frontiers in Physiology 2025).
Train it as squat endurance under fatigue rather than as a strength lift: high-rep sets at competition weight and target height, done after conditioning rather than fresh, with the break pattern you actually intend to use on the day. And practise the standard, because a rep judged short costs exactly as much energy as one that counts.
Four honest tests for “strong enough”
Because the loads are fixed, you can test the requirement directly instead of chasing a strength standard someone invented. Do these fresh, on separate days, at your own division’s load:
- Complete 50 m of sled push without stopping.
- Carry the farmers weight 200 m without setting it down.
- Lunge 100 m with the sandbag without dropping it.
- Complete 100 wall balls to the correct target in one session, broken into sets if needed.
If all four are yes when you are fresh, your strength is sufficient and your race is an endurance problem — go build the engine and rehearse the pairings with Hyrox Prep, or sharpen an existing finish time with Hyrox Race Pace. If any of them is no, that is your first block, and Hyrox Strength Build exists for exactly that. All of them sit in the OPTML Method library.
Keeping the barbell without killing the engine
Most people arriving at Hyrox from lifting are afraid the running will cost them their strength. The concern is real but usually overstated. A meta-analysis of concurrent training found that combining endurance and resistance work does attenuate strength and hypertrophy relative to lifting alone, and that the size of the effect scales with how much endurance work is done and with the modality used (Wilson et al., J Strength Cond Res 2012).
The traffic also runs the other way. Adding heavy resistance training to an endurance programme improved running economy without compromising aerobic capacity (Millet et al., Med Sci Sports Exerc 2002). Lifting is not a tax on the engine — it is part of what makes eight kilometres cost less. Practically: cut lifting volume rather than intensity during race-specific blocks, separate hard lower-body sessions from key running sessions, and put enough protein and sleep behind both. For the full argument, cardio and lifting together and how many days a week to train cover it, the full Hyrox training guide puts it in race context, and protein intake is the input people underdo most.
Bottom line
You need to be strong enough that every published load is comfortably submaximal, and no stronger. Past that point, additional maximum strength is not what buys you a faster Hyrox — aerobic capacity, running under fatigue and the ability to repeat a moderate load at a very high heart rate are. Test the four loads fresh. Whichever one you fail is the block you should be running next.
Educational content, not medical advice. Individual results vary.
