Canberra has again proven fertile ground for Greater Western Sydney, who flogged Port Adelaide by 86 points for their biggest ever AFL win on Sunday.

The dominant 22.19 (151) to 9.11 (65) victory at Manuka Oval was the expansion club’s highest score and winning margin since joining the competition in 2012.

It marked their second win in two games at the ground this season, having beaten Geelong in round two, and takes their record in the nation’s capital to four from their past five.

They had 14 individual goalscorers – youngster Rory Lobb stepped up with four goals, while Callan Ward, Steve Johnson, Ryan Griffen and Rhys Palmer each booted two.

Dylan Shiel was once again hugely influential, as was Shane Mumford who dominated the ruck against opposite Matthew Lobbe.

The Giants, out to avenge last week’s loss to Sydney, were full of energy and intent against a Power outfit that lacked any spark or passion.

Leon Cameron’s men kicked the first three and last three goals of the opening term for a 23 point lead at the first break.

It was their highest-scoring first quarter ever, and set them up for their biggest ever half of AFL.

Eight goals in the second term stretched the score to 14.10 (94) to 5.3 (33) – eclipsing their previous record of 64 points posted in the first half against Western Bulldogs in late 2014.

They only managed two majors in a quieter third quarter but still extended their advantage to 66 points.

That blew out to 86 points in a breezy final term in front of just over 10,000 fans.

It bettered their last best win over Carlton by 81 points at Spotless Stadium in round 22 last year.

Chad Wingard, who missed last week with a hamstring complaint, kicked two goals and had 14 touches, while fellow returning star Hamish Hartlett was fairly quiet with 15 disposals.

Robbie Gray could find himself in hot water for an off-the-ball hit on Ward; a suspension Port coach Ken Hinkley can ill afford.

They host Geelong next week, while the Giants face St Kilda at Etihad Stadium.