Kenyan marathon runner Ruth Chepngetich has been banned from competition for three years following a doping violation, the Athletics Integrity Unit (AIU) confirmed. The 31-year-old admitted to taking a banned diuretic, raising questions about her use of medication and adherence to anti-doping regulations.
Doping Violation and Sanction Details
Chepngetich tested positive for hydrochlorothiazide (HCTZ), a banned diuretic that can be used to mask performance-enhancing drugs. The positive sample was collected on March 14, 2025. While all her achievements and world records set before this date will remain valid, the three-year ban will prevent her from competing until 2028.
The AIU explained that Chepngetich initially could not explain the positive test in April. Later, evidence from her mobile phone suggested “a reasonable suspicion that her positive test may have been intentional.” In July, Chepngetich stated she had taken her housemaid’s medication when she fell ill two days prior to the test, without checking for prohibited substances. The AIU classified this as “indirect intent,” which normally carries a four-year ban. However, because Chepngetich accepted the sanction promptly, the period was reduced to three years.
Career Highlights Remain Intact
Chepngetich holds the women’s marathon world record from the 2024 Chicago Marathon, where she finished in 2 hours, 9 minutes, and 56 seconds. She also won the marathon at the 2019 World Championships in Qatar, which began at midnight to avoid extreme heat.
AIU Emphasises Integrity in Sport
AIU officials noted that the case underscores that no athlete is above the rules. While the HCTZ violation has been resolved, the AIU continues to examine material recovered from Chepngetich’s phone to ensure no further anti-doping violations occurred. The ruling reinforces the importance of vigilance and integrity in athletics.



















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