bt Marat Safin 7-6 6-4 6-2
A semi-final win over Juan Carlos Ferrero saw Roger Federer topple Andy Roddick and become world number one for the first time. It was the start of a record 237-week reign which ended on 18 August 2008.
He fully justified his status as the world's best player with a commanding display against Safin, who had equalled the record for the number of sets played at a Grand Slam during the tournament.
"To win the Australian Open and become number one in the world is a dream come true," he said.