Organisers of the global fitness competition Hyrox have issued an apology and introduced new rules following an incident in Beijing where Australian athlete Joanna Wietrzyk soiled herself during a race but was allowed to continue and ultimately won the event. The competition, held on September 12 in the Chinese capital, features alternating bouts of running and high-intensity exercises using shared equipment, including rowing machines, sled pushes, and medicine ball throws.

Footage and photographs from the event showed faecal matter visibly running down Wietrzyk’s legs onto mats and communal equipment, raising significant health and safety concerns among participants and viewers. The images quickly circulated on social media, sparking widespread debate about the event's health protocols and the responsibilities of both organisers and athletes in such situations.

Hyrox, founded in Germany in 2017 and rapidly expanding internationally—including its debut in mainland China in 2024—acknowledged that prior to this incident, its rulebook addressed only minor infractions such as spitting or littering on the course but did not have explicit protocols for handling incidents involving faecal matter or other bodily fluids that could pose biohazard risks.

Moritz Fürste, the German co-founder and former Olympic athlete, apologised to all those affected directly or indirectly by the incident, taking responsibility for the organisation’s failure to intervene promptly. He confirmed that new rules and safety procedures have been implemented, allowing race directors to withdraw competitors if blood, vomit, urine, or faeces present a contamination or welfare risk during a race. Fürste described the situation as an “unforeseen” one and acknowledged that ambiguity in applying existing protocols contributed to the delayed response.

Hyrox organisers said that after the race, they conducted a thorough cleanup, isolating and deep-cleaning affected lanes, removing contaminated equipment, and replacing venue carpeting overnight before resuming competition. Still, some participants voiced dissatisfaction, calling for refunds or compensation for those who came into contact with potentially contaminated surfaces. Competitor Joe Ho expressed concern about possible physical and psychological effects on athletes exposed to the incident and criticised Hyrox for not offering more concrete remedies.

The incident also drew criticism on Chinese social media, where some accused organisers of favoritism towards the foreign athlete. Chinese state broadcaster CCTV attributed the event to regulatory shortcomings that jeopardised both participant health and the fairness of competition.

Wietrzyk, the world record holder in the Hyrox women’s solo category, posted on social media from what appeared to be a hospital bed shortly after the event, stating: “Go hard or go home … a win is a win," before deleting the post. Organisers defended her, noting that endurance sports often push athletes to extreme physical limits, and incidents of involuntary loss of control are not unprecedented in high-endurance events. They cited examples such as Paula Radcliffe’s well-documented episode during the 2005 London Marathon and former footballer Gary Lineker’s similar experience in the 1990 World Cup.

Following the viral circulation of footage and Wietrzyk’s public exposure, Hyrox warned against abusive behaviour towards athletes, announcing that threats or harassment would result in permanent bans from future events. The organisers emphasised their commitment to balancing athlete resilience with participant safety through updated guidelines aimed at preventing similar situations in future competitions.