Hyrox is a mass-participation indoor fitness race that combines running with functional workout stations in a fixed, standardized format. Founded in Hamburg, Germany, in 2017, it now runs more than 100 events in cities including London and Rio de Janeiro, and its co-founder Moritz Fuerste told Reuters the company is planning for roughly 2.2 million participants this running season and about 2.5 million for the 2027 calendar year.
The format is the reason for the growth, and it is worth understanding before you line up. Every Hyrox race is the same eight events in the same order, blending running with functional workouts, and participants can choose from four racing categories. That predictability is unusual in fitness racing, and it changes how you prepare for it. This guide explains what the race involves, how the new Xenom partnership fits in, and how to think about training for a fixed format you can rehearse. This connects to our earlier piece, Zone 2 Cardio: Why Slow Training Builds Your Aerobic Base.
What actually happens in a Hyrox race?
According to Reuters, the standard Hyrox format combines running and functional workouts across eight fixed events, with four different racing categories available to participants. The company does not publish full station-by-station details in the reporting available here, so treat the exact movements and distances as something to confirm on the official event materials for your race.
The fixed structure matters more than the station list. Because the eight events never change, your training can be specific. You are not guessing what race day holds; you are rehearsing a known sequence. That is a genuine difference from formats that vary the workout every time, and it rewards athletes who train the transitions between running and strength work.
Why is everyone suddenly talking about fitness racing?
Mass-participation fitness events are increasingly popular, and the numbers behind that trend are large. Fuerste, a former German hockey player and an Olympic gold medallist, told Reuters that Hyrox wants to enlarge its footprint in Latin America, naming Argentina, Brazil, Mexico and "middle America" as regions with room to grow.
The competitive field is also widening. In October, Hyrox announced a strategic partnership with Xenom, a CrossFit-inspired platform founded in 2026, to work together on marketing, events and education. Fuerste and co-founder Christian Toetzke have invested in Xenom, which raised a $15 million seed round led by Sujay Jaswa, the former Dropbox CFO, with WndrCo, the firm founded by former Walt Disney Studios Chairman Jeffrey Katzenberg, also on its board.
How is Xenom different from Hyrox?
Xenom runs a longer, two-day format. Its competitions involve 10 fixed, standardized events spread across two days, which the company positions as a separate but connected market. "We exist in separate but connected markets on the same spectrum of fitness and we see a future where people will move around that spectrum," Xenom CEO Keith Barlow told Reuters.
The early numbers are small next to Hyrox but growing fast. Xenom's inaugural event in Dallas, Texas, in June drew just over 400 athletes, and its London event drew about 560, which Barlow described as roughly 30% growth between the first two events. A Miami event follows in December, and the company's first full international season opens in Malaga in 2027.
For a reader deciding where to start, the practical difference is scale and duration. Hyrox is a single-day, eight-event race with a huge participant base. Xenom is a two-day, ten-event competition in its first season. Both are fixed formats, which means both reward specific preparation.
Is fitness racing really heading to the Olympics?
That is the stated ambition, with a named timeline and an honest caveat from the man making the claim. Fuerste told Reuters that Hyrox would love to see fitness become an Olympic discipline, possibly by Brisbane 2032. "That's the big goal and the aspiration that we have. And we are working on the technicalities behind that …. Is it super likely? I don't know," he said.
Read that as an aspiration, not a plan. Olympic inclusion depends on processes no company controls, and Fuerste himself declined to call it likely. What the reporting does establish is direction: the money and the participation numbers are pointing at fitness racing as a lasting category rather than a passing trend.
How should you train for a fixed-format fitness race?
The evidence base for Hyrox-specific training is thin in the sources available here, so the honest guidance is structural rather than prescriptive. A race that alternates running with functional stations asks for two engines at once, and the training problem is blending them without letting either fade. Readers following this should also see How Many HIIT Sessions Per Week? What the Evidence Supports.
A few durable principles follow from the format itself:
- The running component makes aerobic development the foundation. Our guide to Zone 2 cardio explains why slower training builds the base that carries you through a long race.
- VO2 max — the ceiling on how much oxygen your body can use — matters in any race that repeats hard efforts. See how to improve your VO2 max for the evidence on raising it.
- High-intensity work has a dose, and more is not automatically better. Our review of how many HIIT sessions per week the evidence supports covers the limits.
- Because the format is fixed, race-specific rehearsals matter, and so does recovering from them. Deload weeks are the standard tool for scaling back before you push again.
None of that is a Hyrox training plan, and no credible one can be built from a press release. What the format does tell you is the shape of the problem: run well, move loads well, and practice switching between the two under fatigue. For personal programming, a qualified coach who knows your history is the right call.
What to watch next
The near-term calendar is set. Xenom holds its Miami event in December and opens its first full international season in Malaga in 2027. Hyrox is targeting 2.5 million participants for calendar year 2027 and pushing expansion in South America. The Olympic question stays open until the "technicalities" Fuerste mentioned resolve one way or the other.
For training-minded readers, the useful takeaway is that fixed-format fitness racing is now a mainstream category with serious backing, and its predictability is a training advantage. If you have ever wanted a race where the course is the same in London as in Rio, that is the pitch — and the participation numbers suggest a lot of people are taking it.
