Former 400 metre world champion Amantle Montsho has accepted the results from her failed drugs test and waived her right to appeal before the Commonwealth Games Federation Court.
Montsho, 31, had been provisionally suspended after failing her doping test after the 400m final at the Games in Glasgow last month.
The banned stimulant methylhexaneamine was found in her system and she was excluded from the race.
Her decision not to appeal means the Botswana athlete's results from the Commonwealths, where she finished fourth, have been annulled.
The Commonwealth Games Federation only have the power to disqualify an athlete from the Games, and so have now sent the findings to the relevant international federations, where a further decision will be made.
In WADA's hands
If Montsho is found guilty, the case will be referred to the World Anti Doping Agency, where she could receive a two-year ban.
Heading into the Games in Scotland, Montsho was the defending champion after winning gold in Delhi four years ago. She also took the title at the World Championships in 2011, and silver in 2013, getting pipped on the line by Britain's Christine Ohuruogu.
Second failed test
She is the second athlete to have tested positive from the Games after Nigeria's 16-year-old weightlifter, Chika Amalaha, was stripped of her gold medal after her A and B samples both had banned substances in them.