BEIJING — Russian figure skater Kamila Valieva has been cleared to compete in the women’s figure skating competition at the Winter Olympics despite failing a pre-Games drug test.

The Court of Arbitration for Sport ruled after a hastily arranged hearing that lasted into early Monday morning that the 15-year-old Valieva, the favorite for the women’s individual gold, does not need to be provisionally suspended ahead of a full investigation.

Valieva tested positive for the heart drug trimetazidine on Dec. 25 at the Russian nationals but the result from a Swedish lab didn’t come to light until a week ago, after she helped the Russian Olympic Committee win the team gold.