MONACO (AP) 鈥 Women鈥檚 marathon world record-holder Ruth Chepngetich was provisionally suspended for a positive doping test on Thursday.
Track and field鈥檚 Athletics Integrity Unit said Chepngetich tested positive for a banned diuretic and masking agent in March and 鈥渙pted for a voluntary provisional suspension while the AIU鈥檚 investigation was ongoing."
The Kenyan runner set the world record by almost two minutes at the Chicago Marathon last October in 2 hours, 9 minutes, 56 seconds. It was her third win in Chicago.
She also in Qatar, where the women's race started at midnight to avoid extreme daytime heat.
The AIU gave no timetable for a disciplinary case for the 30-year-old runner.
Chepngetich was interviewed in person in Kenya in April and 鈥渃omplied with requests regarding our investigation,鈥 AIU official Brett Clothier said in a statement.
The substance Chepngetich tested positive for, hydrochlorothiazide or HCTZ, can be used to disguise the use of performance-enhancing drugs.
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