HYROX: if you want to improve, don't underestimate the running

Q: Is running really the key to HYROX?

It accounts for roughly 50% of total race time and is the component most strongly associated with overall performance across almost 40,000 analysed results. But running more isn't enough: strength determines whether you can hold that speed between stations.

Q: Should I lose weight to get faster at HYROX?

Not necessarily. Muscle mass helps on some stations, but carrying useless mass over eight kilometres is expensive. Be strong enough that stations aren't limiting, without chasing mass for better gym numbers.

When people think HYROX, they think sled push, sled pull, burpees, wall balls, SkiErg, rower. Fair enough — those give the race its identity. Yet if your goal is a better finishing time, there's a far less spectacular part you absolutely shouldn't neglect: the running.

Eight kilometres that are anything but ordinary

A HYROX includes eight running segments of roughly one kilometre. On paper that isn't much for a runner. The problem: you never run those kilometres under normal conditions.

You run after the SkiErg. Then after pushing a heavy sled. Then after pulling it. Then after burpee broad jumps. Then after the rower. Then after a farmer's carry. Then after lunges. Then before wall balls.

💡 The real question

Not: "How fast can you run 8 km?"

But: "How fast can you keep running once the stations disrupt your mechanics, your breathing and your ability to produce force?"

What almost 40,000 results show

A 2026 study in Frontiers in Physiology analysed 39,696 performances in PRO and ELITE categories across the first seven HYROX seasons (11,842 female and 27,854 male). The headline finding is clear: running accounts for roughly 50% of total race time and is the component most strongly associated with overall performance.

Another striking figure: among the top 100 athletes, total time dropped by about 13 minutes in men and 17 minutes in women between the first and seventh seasons. Of that improvement, around 8 minutes (men) and 10 minutes (women) came from the running.

So it's no detail. But the conclusion isn't "to be good at HYROX, just run" either. That would be wrong.

Strength still matters enormously

Strength-based stations can completely reshuffle the field: sled push, sled pull, farmer's carry, wall balls. An excellent runner lacking strength can lose huge chunks of time there. And the more a station costs you, the more it degrades the run that follows.

The authors indeed show that some strength-oriented stations cause significant ranking redistribution, particularly among lower-performing athletes.

🔑 The right framing

Running controls a large share of the clock; strength and station efficiency determine whether you can hold that speed.

🎯 Find your limiting factor

The Full Test (2 h, in Gland) measures strength, power, strength-endurance and asymmetries — the fastest way to know whether your time is capped by running, by strength, or by pacing.

Book my Full Test

The trap: only training like you race

Run. Burpees. Run. Sled. Run. Rower. Repeat. Those sessions have their place. But if every session looks like the race, it becomes hard to develop each quality precisely.

To get better at running, sometimes you just run. To get stronger, sometimes you just train strength. To improve sled technique, sometimes you train it while fresh. Then, progressively, everything gets combined — the same logic as in any other sport, as covered in our article on why gym training doesn't need to look like your sport.

Not everyone has the same limiter

Athlete 1 — strong but slow

Great strength, struggles at 5:30/km. Improving running capacity is worth a lot.

Athlete 2 — blocked runner

Strong runner, but collapses once the sled gets heavy. Shaving 10 s off a 5 km matters far less than getting stronger.

Athlete 3 — fades

Has both qualities but falls apart after four stations. A fatigue-resistance or pacing problem.

Same sport. Different individual problem. Three athletes, three different programmes.

Should you get lighter?

More muscle helps on some stations. But carrying mass that provides no functional advantage over eight kilometres has a cost. There's a trade-off: be strong enough that stations stop limiting you, without chasing mass or strength purely for better gym numbers.

How to think about your HYROX training

1. Is my running capacity sufficient? Not just your 1 km speed: aerobic base, ability to hold a hard pace and to recover quickly all count.
2. Is one station disproportionately expensive? If you bleed time on the sled or wall balls, more running won't fix it.
3. What degrades when fatigue arrives? Pace? Technique? Strength? Transitions? Your ability to restart immediately after a station?

That's where training must become genuinely individualised — exactly what our physical preparation is for.

Running stays central. But HYROX is still HYROX.

The study doesn't prove that running more automatically improves your result: it analyses race performances, showing what separates results, not how each athlete should train. Still, with nearly 40,000 performances analysed, the message is hard to ignore: if you're preparing a HYROX and running is a small side-part of your programme, there's probably a problem.

✅ Running is ~50% of total race time.
✅ Elite improvements came mostly from running.
✅ Strength determines whether you hold that speed.
✅ Not every session should look like the race.
✅ The best HYROX athlete is neither the strongest nor the fastest runner — it's the one who combines both.

FAQ

Is running really the key to HYROX?

It accounts for roughly 50% of total time and is the component most strongly associated with overall performance. But strength determines whether you can hold that speed between stations.

Should every session look like the race?

No. Simulations have their place, but if every session is a mini-HYROX it becomes hard to specifically develop running, strength or sled technique.

Should I lose weight to get faster at HYROX?

Not necessarily. Be strong enough that stations aren't limiting, without carrying useless mass over eight kilometres.

🎯 Prepare your next HYROX

Objective testing, then a plan that addresses your real limiter — not your training partner's.