Western Sydney claimed the A-League's Premiers' Plate in empathetic style with a 3-0 win over Newcastle to continue their fairytale maiden season and put the final nail in the the Jets' coffin.
The Wanderers' triumph makes them the first expansion club in Australian football history to win a trophy in their debut season.
The Jets meanwhile, who needed a win to keep alive their finals hopes, finish the season in eighth place.
Sydney FC will be hoping Perth Glory lose to visitors Adelaide United in the penultimate game of the season, which is the only way the Sky Blues will remain in the sixth and final playoff place.
The two-time A-League football champions the Brisbane Roar kept their title defence alive by beating Sydney FC 3-1 in Brisbane on Thursday to lock up fifth spot.