Women's marathon world record-holder Ruth Chepngetich has been provisionally suspended by the Athletics Integrity Unit for the presence and use of the prohibited substance hydrochlorothiazide (HCTZ).

Ruth Chepngetich, the marathon world record-holder, tested positive for the banned diuretic HCTZ in a urine sample collected on March 14, 2025. After an internal investigation, Chepngetich voluntarily accepted a provisional suspension on April 19 while the Athletics Integrity Unit continued its case.

Sifan Hassan stars in the women's mile at the 2025 London Athletics Meet as fans will also see a Noah Lyles v. Letsile Tebogo rematch in the 100m.

Ruth Chepngetich, the women’s marathon world record holder, sent shockwaves across the athletics world on Thursday (July 17) when shewas provisionally banned by the Athletics Integrity Unit (AIU).

The organiser of the London Marathon achieved a record surplus last year as pre-tax profit almost doubled to £12m. London Marathon Events, which also runs several other mass participation races, grew revenue from £48.

It's been 3 years since I have raced London as an ALL OUT effort. It didn't quite play out as I had hoped. But we don't give up.. Ever!

Chepngetich, who ran a world record time at the 2024 Chicago Marathon, tested positive for a banned diuretic and masking agent in March and "opted for a voluntary provisional suspension."

Kiplimo made his marathon debut at the 2025 London Marathon in April, a performance that turned heads globally and signaled the birth of a new long distance contender on the roads.