Doping has become inevitable at the Olympics. And who wins gold in Tokyo might not be certain until 2031

Because of the lag between new drugs coming into sport and the development of reliable drug tests, there’s a 10-year retrospective testing window.

from Moneycontrol Sports News https://www.moneycontrol.com/news/sports/doping-has-become-inevitable-atolympics-and-who-wins-goldtokyo-might-not-be-certain-until 2031_15309261.html