Hyrox tightens rules after Joanna Wietrzyk incident at Beijing race

Hyrox has revised its rules and event procedures after women's world record holder Joanna Wietrzyk soiled herself during a Hyrox race in Beijing, the episode reported on September 15, 2026. Wietrzyk completed the course and won the women's event despite suffering severe fecal incontinence.

Moritz Fuerste, the German co-founder of Hyrox and a former Olympic field hockey champion, apologised to everyone "directly or indirectly" affected by the incident. "Hyrox made a mistake by not reacting immediately during the race," Fuerste said in a statement on social media. "Of course, we started improving event processes, plus making rulebook changes immediately. As of this moment, there are new rules and procedures in place to prevent situations like this from happening again."

The episode prompted scrutiny because Wietrzyk continued through a demanding, standardised indoor course after suffering severe fecal incontinence. She later posted on social media, writing "a win is a win" and thanking people for their support. Organisers carried out a major cleanup operation after the incident, and concerns were raised about other competitors who had used the same course and equipment.

Hyrox acknowledged its existing protocols, saying it already had "clear bio-contaminant and medical procedures" but that those protocols became "blurred" during the Beijing event. The organisation said the sport was continuing to evolve and that increasingly complex situations could test existing procedures, and it accepted responsibility for reviewing what happened and making changes.

Founded in Germany in 2017, Hyrox has expanded from a niche fitness competition into a global racing series built around standardised indoor races. Those races pair eight 1-kilometre runs with eight workout stations, with exercises such as sled pushes, sled pulls, rowing and burpee broad jumps designed to test both endurance and strength.

Wietrzyk, one of the leading athletes in the sport and the women's world record holder, divided opinion with her decision to finish the race: some praised her determination while others questioned whether allowing her to continue was appropriate from a hygiene and safety perspective. Hyrox has said its rule changes are aimed at ensuring officials have clearer procedures for dealing with similar situations during races.

Hyrox says it has already begun implementing the rulebook changes and procedural updates that Fuerste described, and the organisation has committed to reviewing the incident and its handling to prevent comparable occurrences in future events.