It was a five-set thriller as the home favourite faced off against the two-time Melbourne quarter-finalist.
But as the clock ticked towards midnight on Rod Laver Arena, it was Rublo who got a decisive double-break at the start of the fifth, powering on to triumph 6-4, 6-7 (5), 6-7 (4), 6-3, 6-0.
The fifth seed will now play in his tenth Grand Slam quarter-final.
“Two days ago I said I hope we will show an amazing match that spectators will enjoy – now I regret about that!” joked Rublo on court afterwards after the gruelling late-night epic.
It won’t be long until the Australian has his chance for revenge, though, because the pair will meet again soon – they have both been drawn in Group B for UTS Oslo, which begins on February 9 at the Telenor Arena.