It was a thrilling contest between the Peninsula Seagulls and Windsor Wolves in the qualifying final in week one.
Ryan Oldfield was the hat-trick hero for the Seagulls in a narrow four-point win.
Peninsula prevailed for a monumental victory to progress to the preliminary final and are just 80 minutes away from the grand final.
Peninsula 28 (R Oldfield 3, T Leatherby 2, S Short tries; V Ngaro 2 goals) bt Windsor 24 (J Wormleaton 2, D Farkas, B Nangaiti tries; Farkas 4 goals)
Peninsula progress to Week Three of Sydney Shield Finals Series.