US track and field star Sha’Carri Richardson was Tokyo bound for the 2020 Summer Olympics (which begin this month after being delayed due to COVID-19), until a positive test for THC handed her a 30-day ban. That ban, the result of a World Anti-Doping Agency test, means Richardson will no longer be able to compete at the games.
Richardson has said that she used marijuana to help cope with the pressure of qualifying for the Olympics while also mourning the recent death of her mother. Her positive test came during a time when many other anti-doping agencies, including USADA, are removing marijuana and THC from their banned substance lists.