Athletics Integrity Unit (AIU) has provisionally suspended Kenyan marathon runner Ruth Chepngetich for doping.
Chepngetich, the women’s marathon world record holder, was suspended yesterday after testing positive for a banned substance.
In a statement, the AIU said that the diuretic hydrochlorothiazide (HCTZ) was detected in a sample collected from her on March 14, 2025.
Chepngetich clocked a time of two hours, nine minutes, and 56 seconds, breaking the world record to win the Chicago Marathon in October 2024.
The previous record was set by Ethiopia’s Tigst Assefa at the 2023 Berlin Marathon, where she completed the race in two hours and eleven minutes.
Use of HCTZ is prohibited under the World Anti-Doping Agency (WADA) code. It is commonly used to treat hypertension and fluid retention.
