Lilydale sent out a vicious warning to all premiership contenders, defeating East Coast 12.11 (83) to 4.11 (35) at Pyengana.
Playing in the Swans' annual celebration of the North-East's contribution to Tasmanian football, the Demons came out to play in the third quarter, piling on six goals to take the game away.
Thane Bardenhagen shrugged off his injury concerns, joining Billy Tuckerman on three majors in a strong performance from Louis Venn and Nick McKinnon, who has impressed since coming over from George Town.
Nick Child was East Coast's sole multiple goalkicker as returning pair Shaun Cannon and Corey Bosworth were named the best.
The Demons' win left them as the only undefeated side in the league.
Old Launcestonians rained on St Pats' party, defeating the Saints 10.17 (77) to 6.8 (44) as they celebrated the 1936 premiership.
The Saints had their history on display but Laine Cleaver's Blues kept them at arm's length throughout the contest with Will Archer booting six and Patrick Power two as Luke Wheldon claimed best-on-ground honours.
Jake King and Josh Bellchambers kicked multiple for St Pats, with Mathew Williams and Liam Brown the side's best.
Meander Valley Suns shook off the embarrassment of their first home game with a 12.9 (81) to 6.12 (48) win over Evandale.
The home side kicked away in the last, only leading by five points but, led by a five-goal haul to Brodie Langley, they sealed the deal.
Jesse Warren, Kane Brugeaud and Langley were Meander's best as Lachie Groves (three goals), James Conroy and captain Jackson Davey were good for Evandale in Shane Cackett's 50th game.
Bridport got itself back on the winners' list after a tough run, defeating UTAS 18.11 (119) to 6.8 (44).
Setting the tone with a six-goal opening term, the Seagulls broke three figures for the first time this season as Jake Blackwell (four goals), Matthew Taylor, Scott Fenton and Nathaniel Barnett (all three) enjoyed the spoils.
Cody Kerrison was Bridport's best while John Morgan booted three of UTAS' six and Chris Smith continued his run of form.
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