Federer and Nadal produced one of the finest contests their rivalry has ever seen but it was the Swiss that prevailed, winning 6-4 3-6 6-1 3-6 6-3 after three hours and 38 minutes on Rod Laver Arena.
It means Federer has secured his fifth Melbourne crown and a first grand slam success since Wimbledon in 2012.
If this was to be the last grand slam duel between this pair, perhaps the two finest players the sport has ever seen, it was more than a fitting finale.