How Many Calories Does Hyrox Burn?

Overview

Hyrox burns a significant number of calories compared to most fitness activities, primarily because it combines sustained running with repeated high-intensity resistance work across 60 to 120 minutes of continuous effort. Exact numbers vary based on body weight, fitness level, and pace, but the estimates below give you a practical planning framework for race-day fueling and post-race recovery nutrition.

Total Calorie Estimates

Approximate total calories burned during a Hyrox race by finish time:

60-minute finish: 700 to 900 calories
75-minute finish: 800 to 1,050 calories
90-minute finish: 900 to 1,200 calories
105-minute finish: 1,000 to 1,350 calories
120-minute finish: 1,100 to 1,500 calories

These estimates use a combined metabolic equivalent value for running and functional resistance exercise. Individual variation is high, particularly for body weight differences.

By Body Weight

Heavier athletes burn more calories at the same relative effort. Approximate total burn for a 90-minute finish by body weight:

60kg: 820 to 950 calories
70kg: 950 to 1,100 calories
80kg: 1,080 to 1,250 calories
90kg: 1,200 to 1,400 calories
100kg: 1,350 to 1,550 calories

By Finish Time

Faster finish times do not automatically mean fewer total calories burned. Elite athletes finishing sub-60 burn at a very high rate per minute because their pace is significantly faster. A 60-minute elite race may burn as many total calories as a 90-minute recreational race because the calories-per-minute rate increases with intensity faster than the time reduction decreases it. Intensity matters as much as duration for total calorie calculation.

Station Breakdown

Estimated calorie cost per station for a 90-minute finisher at 70kg:

Running total (8 by 1km at 5:30 pace): approximately 450 to 500 calories
SkiErg 1000m: 60 to 80 calories
Sled push and pull combined: 80 to 110 calories
Burpee broad jumps 80m: 70 to 90 calories
Rowing 1000m: 65 to 85 calories
Farmers carry 200m: 30 to 45 calories
Lunges 100m: 50 to 70 calories
Wall balls 100 reps: 75 to 95 calories

How To Fuel For The Burn

For races under 90 minutes: a standard pre-race meal 2 to 3 hours before your wave start is sufficient. You do not need to fuel during the race itself. For races between 90 and 120 minutes: one energy gel between stations 4 and 5, just after burpee broad jumps and just before the rowing, provides a useful glucose top-up without causing GI distress. For races over 120 minutes: two gels, one at station 4 and one at station 6, are appropriate.

Tracking Tools

Wrist-based heart rate monitors calculate calorie burn from HR data and are reasonably accurate for sustained aerobic work. For Hyrox specifically, they tend to underestimate the calorie cost of strength-based stations, which have high mechanical output relative to heart rate readings. Chest strap monitors are more accurate for HR-based estimates. The estimates in this article are sufficient for practical fueling planning regardless of tracking method.