A couple of critical decisions went against the Jets, who have played one game more than Victory.
Replays suggested the corner which led to Ryan's equaliser shouldn't have been given, with the last touch appearing to come off a Victory player.
Four minutes later, Valentino Yuel had a headed goal overturned after a VAR review revealed Stamatelopoulos was just offside.
Victory threatened early with the excellent Ben Folami prominent.
He had a fierce fifth-minute shot pushed away by Jets' goalkeeper Lewis Italiano and was wide with another attempt a few seconds later.
Newcastle then created some chances with Yuel blazing over from close range and Ramy Najjarine shooting just wide, before Stamatelopoulos netted.