Rally for Relief: Roger Federer, Serena Williams and Novak Djokovic play in charity match
Home player Nick Kyrgios raised A$1,600 (£954) in aces alone at Wednesday's Rally for Relief, while Roger Federer and Rafael Nadal - who between them have won 39 Grand Slams - joined together to donate A$250,000 (£132,285).
The firefighters in attendance were given a lengthy, standing ovation by the crowd, while one joined Nadal on court to play doubles.
"Back home in Canberra, I couldn't even go outside. It was emotional," said Kyrgios, who made the first pledge to the appeal.
"I'm so happy we had Roger, Rafa, Novak [Djokovic] - some of the greats to get behind it. We're doing everything we possibly can to overcome this together."