Athlete Joyline Chepngeno, the first woman to cross the finish line at the 2025 edition, tested positive during the anti-doping control carried out at Sierre-Zinal. She admitted to having injected a prohibited substance. The Athletics Integrity Unit (AIU) confirmed the violation of anti-doping rules and imposed a two-year suspension on September 8, 2025.
In line with Sierre-Zinal’s regulations and zero-tolerance commitment, she has been disqualified from the 2025 race and is banned from participating during her entire suspension period.
In her very first appearance at Sierre-Zinal, Caroline Kimutai — who tested negative — is officially crowned winner, ahead of Katie Schide and Maude Mathys.
All details, along with the race’s commitments, are available in our official press release.
download the press release
