Peninsula will get an opportunity to claim its first-ever senior flag in the VAFA after they proved too strong for Caulfield Grammarians with a 16-point win at Trevor Barker Oval.
Leading by five points at the first break, the Pirates gradually increased the margin as the game went on, with William Crowder starring in front of goal on his way to a bag of five.
Adam Smrdel left nothing in the tank in a dominant best-on-ground performance, while George Fletcher, Stefan Barbour, Alexander Marshall and Will Harbinson bothered the scorers with two each.
Thomas Small was nothing short of inspirational for the Fields, who now leave the finals race on the back of two consecutive losses after claiming the minor premiership.
The Pirates will meet Mazenod in a Premier C blockbuster next week and follow it up with elevation to Premier B.