Hyrox Sled Push: The Complete Guide (Technique, Strength, Pacing)

At Hyrox London in 2025 I spent two full waves near the sled zone. I watched dozens of first-timers fail the sled push through the same technical errors: too upright, stride too long, head down, breath held. Athletes stopping at 20 metres, breathing for 40 seconds, restarting half-broken. The sled push is station 2. It isn't a finisher. It's a test of your capacity to produce force without emptying yourself.

Official Hyrox weights: what's actually on the sled

Hyrox is explicit in the 26/27 rulebook: the announced weight includes the sled. Standards:

• Open Men: 152 kg total, roughly 30 to 40 kg sled plus plates.
• Open Women: 102 kg total.
• Pro Men: 202 kg total.
• Pro Women: 152 kg total.

Distance is fixed at 50 metres, split into 4 × 12.5 m out-and-backs. That format is what makes the station so treacherous, because every turnaround resets the sled's inertia. You can never coast on the previous segment's momentum. You have to re-accelerate four times. Watching splits at events I've worked, the variance between the fastest and slowest segment for the same athlete can reach 15 seconds.

Sled push biomechanics

The sled push is a resisted sprint effort under an extremely heavy load. The scientific literature on sled push training (Cross et al., International Journal of Sports Physiology and Performance 2017; Petrakos et al., Strength and Conditioning Journal 2016) shows that optimal posture under heavy load diverges significantly from unresisted sprinting.

Trunk lean: around 45°

Under 152 kg to push over 50 metres, your torso should sit near 45° to the ground. This forward lean maximises the horizontal component of the force you apply to the sled. A study by Cross and Brughelli (JSCR 2019) on sled load and the force-velocity profile shows that as load increases, trunk lean increases, and it's adaptive: the body seeks the geometry that minimises the resistance lever arm. On Hyrox weights, at 60-80% of body mass, the lean has to be pronounced.

Short stride, high cadence

Counter-intuitive for many, but confirmed by biomechanics: under heavy load, stride length shortens and cadence rises. Rakovic et al. (Journal of Strength and Conditioning Research 2018) on sled pushes in adolescent sprinters report a 30 to 40% reduction in stride length at 40-50% of body weight. That's the natural neuromuscular organisation. If you try to keep your usual running stride, you spend too long airborne and the sled decelerates.

Hand and arm position

Hands at hip height or slightly above. Arms straight, elbows locked. Force doesn't come from the arms, they're transmitters between your legs and the sled. If you bend your elbows, you absorb propulsion into your triceps and scapular girdle and lose 20% of horizontal force. Coach cue: pretend your arms are iron bars.

Push vs pull: the physiological difference

Hyrox has both: sled push station 2, sled pull station 3. The classic mistake is training them the same way. It's wrong.

The push mostly recruits hip and knee extensors in a closed chain with horizontal propulsion. Quads, glutes, calves, secondary posterior chain. The pull loads a more vertical posterior extension chain, with heavy involvement of hamstrings, lats, and traps. Metabolically the pull looks slightly cheaper at equal load, but it fatigues the trunk and forearms, both of which show up again on the farmer's carry and the wall ball.

Practically for your training: push and pull sessions should be separated, or at least 20 minutes apart. The Cross et al. review cited above recommends treating each modality as its own exercise.

Building specific sled strength without a sled at home

The most frequent question I get. Most standard gyms don't have a Hyrox-grade sled. Substitutes ranked by biomechanical closeness:

• Prowler push or a CrossFit sled: available in most affiliated boxes. Load at 60-80% of body weight, 4 sets of 25 m with 90 seconds rest. Almost identical, closest match.
• Heavy belt squat marches: reproduce the hip extension pattern under external load. 4 sets of 20 steps.
• Loaded walking lunges with dumbbells or a 20-30 kg bag, torso pitched forward: reproduce the push geometry and the unilateral fatigue. 4 sets of 20 metres.
• Car pushes on a private car park if you have access: the strongman classic, perfect under sensible safety conditions.

A note: the total absence of sled work in your training is not a disqualifier. You can build a respectable base over 3 months on pure general strength (heavy squats, hip thrusts, leg press) plus aerobic conditioning. But you'll pay for the opening sled push a bit more than a specialist.

Pacing: what percentage of max on the sled?

The most important strategic question. The answer draws on the physiology of compromised effort.

For a beginner, the simple rule: 80% perceived exertion on the first segment. You should be able to speak a short sentence at the end of the 12.5 metres. If you can't say your own name, it's too hard. That perceived exertion scale is validated in applied physiology (Borg, Perceived Exertion Scale) and remains the best field tool when you don't have a heart-rate monitor.

For an intermediate athlete targeting sub-1h30, you can push to 85%. Beyond that, you enter a zone where muscular acidosis will compromise your remaining 6 kilometres. Remember you're at station 2. You still have 6.5 kilometres and 6 stations left. Physiology doesn't forgive early pacing mistakes.

The most common mistake: going too hard off the line

At Hyrox Berlin, I watched a guy leave the ski erg zone like a rocket, take his stance behind the sled, blast the first 12.5 metres in 15 seconds. I glanced at the clock and knew he'd pay. He crawled on the second segment. Stopped twice on the third. The fourth took 40 seconds. His total sled: 2 minutes 20. A time he'd have hit at 80% in 1 minute 45 without a single stop. 50 seconds gifted to station 2, and a frustration that followed him to the finish line.

The sled push is the most metabolically expensive station of the race per second of effort. You produce huge power output on very large muscle chains. Lactate spikes fast, and worse, it drops slowly because you have no real active recovery afterwards (you go straight into the sled pull). Going 100% off the line drops you into a hole you don't climb out of until the rower, station 5.

The winning strategy segment by segment

After several editions watching splits, here's the pacing frame I recommend for a beginner targeting sub-1h45:

• Segment 1 (0-12.5 m): 80%, high cadence, short stride. Goal: clear the zone with fuel in the tank.
• Segment 2 (12.5-25 m): same intensity, no temptation to accelerate even if you feel good. That's the trap.
• Segment 3 (25-37.5 m): this is where fatigue lands. Slow slightly, drop the amplitude, keep cadence high. One-second standing micro-pause allowed if you must.
• Segment 4 (37.5-50 m): now let the horses out, aim for the line, save nothing. Last 5 metres at 100%.

How ForgeSport helps you here

The adaptive programme includes sled work when your gym has the kit, and automatically switches to biomechanical substitutes (heavy lunges, prowler, belt squat) when you declare the absence of equipment in your profile. The Alt button gives you a sled-push-specific progression for the final 6 weeks, with loads calibrated on your squat 1RM. The AI coach can build you a personalised pacing plan if you feed it your target time and your physiological profile. Free to try, no card required.