The race that became a reference
From December 4 to 7, 2025, the ExCeL London convention center received more than 40 thousand athletes over four days of competition. The organization described the event as the biggest Hyrox edition ever held, with more than 30 thousand spectators expected over the weekend and a single-loop running course, a first in the United Kingdom.
In Brazil, growth followed the same pace. The Hyrox São Paulo took place on September 20, 2025, at São Paulo Expo, one of the country's biggest venues, with the Open, Pro, Doubles and Relay divisions and broad age categories, starting at 16. Choosing a space of that size says a lot about the demand: Hyrox stopped being a niche event to occupy large arenas.
What Hyrox is, in one sentence
The format is the key to understanding the fever. Every Hyrox race is identical anywhere in the world: 8 kilometers of running divided into eight 1 km laps, and between each lap the athlete faces one of the eight functional stations, always in the same order.
- SkiErg (1000 m on the ski ergometer)
- Sled push (pushing the sled)
- Sled pull (pulling the sled)
- Burpee broad jumps (burpees with a jump)
- Rowing (1000 m on the rower)
- Farmer carry (walking with kettlebells)
- Sandbag lunges (lunges with a sandbag)
- Wall balls (ball throws at the wall)
Since the sequence never changes, the time of someone racing in São Paulo can be compared directly with someone racing in London or Las Vegas. That global comparability is rare in amateur sport and helps explain why so many people engaged.
From a garage in Hamburg to hundreds of thousands of athletes
Hyrox was born in April 2018, in Hamburg, Germany, created by Christian Toetzke and Moritz Fürste, an Olympic field hockey champion. The first race had about 650 participants. The jump since then is what sustains the fever narrative.
In 2023, there were 65 races in several countries and about 175 thousand competitors. The 2024/2025 season reached approximately 650 thousand participants, spread over more than 85 cities in 30 countries. For the 2025/2026 season, the organization itself projected passing 1.3 million participants over the calendar.
There is even academic interest in the phenomenon. A descriptive analysis published in Research Quarterly for Exercise and Sport examined participation patterns of more than 275 thousand athletes in the sport, a sign that Hyrox stopped being a passing fad to become an object of study.
What explains the explosive growth
No single factor explains the fever. Evidence points to a combination of elements that reinforce each other.
Standardization and replicability. Since it is always the same race, Hyrox is easy to reproduce in any city. That allows scaling the calendar quickly without changing the product's character. The athlete knows exactly what they will face before buying the ticket.
Global comparability. World rankings only make sense when the test is identical. Hyrox turned every race into a comparable data point, creating the same addictive logic of a personal best in road running, but with strength and endurance together.
Accessibility. The sport accommodates everyone from beginners to elite athletes, with doubles, relay and broad age divisions. You do not need to be a specialist to participate, and much of the audience competes for the first time.
Community and arena atmosphere. Races take place indoors, with crowds, sound and thousands of people going through the same stations throughout the day. The social and collective component weighs as much as individual performance.
How to face Hyrox with feet on the ground
The format's appeal does not dispense with preparation. Combining running with strength stations under fatigue demands a conditioning base and some technical familiarity with the movements, especially the sled, wall ball and loaded lunges. If you are starting out, gradual progression reduces injury risk and improves the race experience.
The London number impresses, but the most relevant data point may be the pace: a sport that went from 650 people to hundreds of thousands in a few years. Whether in São Paulo or at the ExCeL, Hyrox became a meeting point where the same test, anywhere in the world, puts very different people on the same start line.
