SYDNEY — Petro Papathomas and Vinnie Gibaldi will face off in the MasterChef Australia 2026 Grand Finale after a tense semi-final service challenge eliminated Aaron Kher on Monday night. Petro and Vinnie advanced to the Grand Finale, scheduled for Sunday, August 9, at 7 p.m. on Channel 10. "Going into the semi-final, I just wanted to cook dishes that truly represented me and my journey on MasterChef," he said. The Grand Finale will consist of two challenges. With the Grand Finale days away, attention turns to how the two remaining cooks will handle the combination of creative freedom in the Mystery Box and the precision required by Finden's multi-element dessert.