7 Apr 2026

How Three ROXFIT Athletes Broke the HYROX Relay World Record at Warsaw

On April 5 at the 2026 Warsaw Major, a four-person relay team ran 46:47 to set a new HYROX Relay World Record. Three of the four were ROXFIT athletes: Sinéad Bent, Joanna Wietrzyk, and Charlie Botterill, joined by Sebastian Ifversen.

The same weekend, Joanna ran 54:25 in the Women’s Solo Pro to set a new Women’s Solo Pro world record. Sinéad backed it up with a Pro PB of 56:54. Charlie posted 55:02 in Solo Pro. Warsaw was that kind of weekend.

See the relay result on ROXFIT.

How a relay works

In HYROX Relay, four athletes divide the full race between them. Each team member completes a portion of the 1km runs and stations. The load per person is significantly lower than Solo or Doubles, which is what makes times in this format so fast, but the coordination between runners and the efficiency of transitions is what separates a good relay from a world record one.

At the elite level, the relay format rewards teams who can put four athletes together with complementary strengths: running pace, station speed, and the ability to arrive at a handoff point clean and composed.

The team and how they were selected

This wasn’t a team assembled on the start line. Three of the four athletes are on ROXFIT. We knew what they were capable of individually. Sinéad with her distance running background. Joanna with her raw speed across the stations. Charlie with his cycling-built aerobic engine. When Sebastian Ifversen came into the conversation as the fourth, the pieces were there.

The Warsaw Major was the right race: fast course, strong field, good energy.

How they ran it

The relay team finished in 46:47, averaging just under 12 minutes per athlete across their combined share of running and stations.

What makes this result stand up isn’t just the total time. It’s that three of the four athletes were also racing Solo Pro at the same event. Sinéad ran 56:54 in Solo Pro. Joanna ran 54:25 for the Women’s Solo Pro world record. Charlie ran 55:02. The relay came on top of, or alongside, full individual efforts across the same race weekend. The level of fitness required to contribute to a world record relay while also running personal bests in Solo Pro is not the norm.

Station efficiency was a key factor. In a relay format, each athlete’s station reps are shared across the team, which means the athletes arriving at each station can go harder, knowing they’re not carrying the full load. The ROXFIT athletes understood this going in. Rather than holding back in the early stations, they committed early and trusted the splits.

The transitions were clean. Handoff points in relay HYROX require the incoming athlete to complete their final run and arrive ready to pass to the next. Hesitation there costs seconds. This team didn’t hesitate.

What the splits show

The full result is on ROXFIT. You can see every station split, every run split, and how the relay times compare to the field.

A few things stand out in the data:

The run splits were fast across the board. HYROX Relay teams often sacrifice running pace for station speed, or vice versa. This team didn’t give anything up on the runs. The aerobic capacity across all four athletes meant no one needed to jog in to recover.

The Ski Erg and Sled splits were aggressive. These tend to be where relay teams either gain or lose significant time. Going hard on a Ski Erg when you know your total rep count is halved changes how you approach the movement. The team used that.

Wall Balls at the back end were clean. By the time a relay team reaches Wall Balls, fatigue is typically stacking. The station split here held up.

Three athletes, one relay, three individual records

The broader context of what happened at Warsaw matters. Joanna Wietrzyk broke the Women’s Solo Pro world record in the same event. Sinéad Bent ran the third-fastest Women’s Pro time ever recorded. Charlie Botterill ran 55:02 in Solo Pro. All three then combined with Sebastian Ifversen for a relay world record on top.

That’s not coincidence. It’s the result of athletes who train at a level where a world record relay effort doesn’t require anything extra. It’s just what happens when you put four people who are in that kind of shape in the same building on the same day.