Perth Glory's 15-year silverware drought is over after Tony Popovic's men secured the A-League's Premiers Plate with a 1-0 win over Newcastle Jets.
Glory, who started Sunday's match five points clear of nearest rival Sydney FC, knew a victory over the Jets would be enough to guarantee top spot with two rounds to spare.
Ivan Franjic's 65th-minute strike gave Glory all they needed in front of 11,349 fans at HBF Park, delivering the club its first piece of silverware since winning the 2004 Championship in the now-defunct NSL.
It also guaranteed Glory a berth in next season's AFC Champions League.
The Jets started as rank underdogs, but gave Glory two massive early scares.
Striker Roy O'Donovan almost produced a goal-of-the-season contender with an audacious 33-metre dipping volley that looped over goalkeeper Liam Reddy before crashing into the crossbar.
A few minutes later, O'Donovan hit the back of the net after latching onto a cross from Ivan Vujica. Glory players were adamant O'Donovan was offside, and referee Kurt Ams decided to send it to the VAR.
Replays showed O'Donovan was slightly offside, with the goal rubbed out.
The VAR was again brought into action in the 20th minute when Glory speedster Joel Chianese was brought down in the box, but the penalty appeal was denied.
Both sides had plenty of chances during a fast-paced opening half, with Glory's best opportunity coming in the 40th minute when Andy Keogh slammed his close-range shot into the crossbar.
Glory midfielder Juande limped off with a knee injury in the 30th minute, forcing Popovic to introduce young gun Jake Brimmer to the fray.
Perth had goals ruled out for offside in the 58th and 62nd minutes, before Franjic finally broke the drought after latching onto a beautiful through pass from Diego Castro.
The Jets pushed hard for an equaliser, but Glory wouldn't be denied their moment in the sun.