American Tyler Hamilton will be able to keep his gold medal from the 2004 Athens Olympics.
Hamilton tested positive in 2004 for blood transfusions
Hamilton tested positive for a blood transfusion after winning the Olympic time-trial title.
He was initially allowed to keep his prize after his B or second sample was destroyed by being deep-frozen.
Russia appealed to the Court of Arbitration for Sport on behalf of silver-medallist Vyacheslav Ekimov, but that bid was rejected.
"Tyler Hamilton can retain the gold medal he won at the time-trial event in Athens and the ranking of this race is definitively confirmed," the CAS said in its ruling.
The 34-year-old is serving a two-year ban after testing positive for blood transfusions at the 2004 Tour of Spain, weeks after winning his Olympic title.
That ban was upheld by the CAS in February.