He ended it perfectly, with a beautiful ace down the center of the court.
The biggest surprise of the match was the fashion in which Murray, who lost to Federer at Wimbledon 2012 in four sets (4-6, 7-5, 6-3, 6-4) just one month ago, handily dispatched the world’s No. 1-ranked tennis player.
His strong return counteracted Federer's normally dominant serve. Fed was helpless as Murray picked him apart all over the court, using pinpoint precision to keep him off balance.
There was never any doubt.
Murray’s home-court advantage may have been a factor for the Brit. Throughout the match, the crowd voiced their support—something Federer had enjoyed himself in these Olympics up until this point.
A look of disbelief began to set in over Federer as he continued to struggle through the onslaught Murray was unleashing on him. As his opponents have felt so many times during his career, he was helpless to do anything against it.
His final stand in the third set was admirable, but it was too little too late for the Swiss tennis legend.
At 30 years old, this may have been the last opportunity for the great Roger Federer to capture the golden slam—a combination of winning all four of the major competitions as well as a gold medal.
Murray, on the other hand, will not likely be as successful as Federer by the time his career is over. In his career, he's appeared in a mere four Grand Slam title matches and he’s been defeated by Federer three times. He has no Grand Slam titles.
However, the hope of Great Britain will always have this amazing gold-medal win to look back on when recounting his career.
It was and will be the best performance of his career. A truly defining moment.
Follow Mike on Twitter @BigHoagowski