Kenyan marathoner Diana Kipyokei has been banned for six years and stripped of her 2021 Boston Marathon title for doping and tampering, the Athletics Integrity Unit said Tuesday. Kipyokei`s urine sample after winning in Boston in October 2021 had traces of triamcinolone acetonide " an anti-inflammatory prohibited at races when an athlete does not have permission to use it as a medication. The AIU said Kipyokei "provided false/misleading information" in trying to explain her use of the substance, "including fake documentation which she alleged came from a hospital."

The Boston Athletic Association announced that Kipyokei`s result in the 2021 Boston Marathon has been disqualified, and that Edna Kiplagat of Kenya has been elevated to winner. Kiplagat is now recognized as a two-time Boston winner, having also won in 2017. The BAA had said in October that it would annul Kipyokei`s result pending completion of the AIU investigation and sanction announcement.