The Athletics Integrity Unit (AIU) confirmed the decision in a statement released on Thursday, October 23, 2025.
According to the AIU, the 31-year-old Kenyan athlete tested positive for Hydrochlorothiazide (HCTZ), a banned substance often used by athletes to hide traces of other performance-enhancing drugs.
The test was carried out on March 14, 2025, and laboratory results showed the presence of the substance in her urine sample.
“Women’s marathon world record-holder Ruth Chepng’etich has been banned for three years after admitting to anti-doping rule violations regarding the presence and use of Hydrochlorothiazide,” the AIU said in its statement.
The AIU explained that while HCTZ is not completely banned, the World Anti-Doping Agency (WADA) has set a limit for how much can be found in an athlete’s system.
In Chepng’etich’s case, the detected levels went beyond the allowed limit, leading to her suspension.
Ruth Chepng’etich, who made headlines in October 2024 after setting a new women’s world marathon record of 2:09:57, has been one of Kenya’s most celebrated long-distance runners.
Her performance was widely praised and brought pride to the nation. However, the latest development has left many athletics fans shocked and disappointed.
The AIU stated that Chepng’etich’s decision to admit her wrongdoing helped reduce the punishment period. Athletes who cooperate with investigations often receive shorter bans than those who deny the charges.
The ban means that Chepng’etich will not be allowed to participate in any official competitions until 2028. Her absence will be felt in upcoming international marathon events where she has always been a strong contender.
This case adds to the growing list of Kenyan athletes who have been caught up in doping scandals in recent years, raising concerns about the country’s reputation in global athletics. The AIU said it remains committed to maintaining integrity and fairness in the sport.
As of now, Chepng’etich and her management team have not released any personal statement about the ruling. The athletics world now waits to see how Kenya’s anti-doping agencies respond to this latest setback.
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