Alex Dubeau bounced back from a disastrous performance on Sunday.
The Wildcats goalie made 25 saves to earn the shuout as Moncton blanked the top-ranked Halifax Mooseheads 3-0 in Quebec Major Junior Hockey League action.
Dubeau had given up three goals on 12 shots in Saturday's 6-5 win over the Baie-Comeau Drakkar. He was pulled after the first period in favour of Cole Holowenko.
But Dubeau was given the start again Sunday and did not disappoint head coach Danny Flynn.
The loss ended Halifax's four-game win streak. The Mooseheads (21-3-1) still have the best record in the QMJHL.
Moncton (16-10-0) is still sixth overall in the league.
Elsewhere in the QMJHL it was: Saint John 5 Baie-Comeau 4; Blainville-Boisbriand 5 Gatineau 2; Chicoutimi 2 Quebec 1 (SO) and Drummondville 5 Victoriaville 2.
Sea Dogs 5 Drakkar 4
At Saint John, N.B., Sebastien Auger made 38 saves as the Sea Dogs (13-12-0) fended off Baie-Comeau (17-7-3), which scored three unanswered goals in the third period. The final play of the game was particularly rough with nine penalties being handed out to five players.
Armada 5 Olympiques 2
At Boisbriand, Que., Tommy Giroux capped off his hat trick with a short-handed empty-net goal as the Armada (20-5-2) skated past Gatineau (9-15-1).
Sagueneens 2 Remparts 1 (SO)
At Chicoutimi, Que., Guillaume Asselin was the lone scorer in the shootout as the Sagueneens (13-11-3) edged Quebec (19-5-1).
Voltigeurs 5 Tigres 2
At Victoriaville, Que., Jerome Verrier scored twice as Drummondville (14-12-0) scored four unanswered goals in the third period to rally past the Tigres (10-10-5).