Seth Griffith scored three times and Michael Houser made 25 saves for the shutout, in a 5-0 Knights win over the Spits on Thursday night at the WFCU Centre.
Josh Anderson and Jared Knight had the other goals for London (39-11-0-1).
Jordan DeKort was solid in his Spitfires debut, spelling Jaroslav Pavelka at the 13:34 mark of the first period. The rookie goaltender made 17 saves and was solid throughout.
Pavelka was victimized for three goals on just eight shots.
Former Spitfires forward Austin Watson and Tampa Bay prospect Vlad Namestnikov chipped in two assists each.
The loss leaves Windsor (23-25-3-2) two points back of Saginaw for sixth in the Western Conference.
The Spits are right back at it on Saturday night, as the Erie Otters head to town. Gametime is 7:05.
SCORING
FIRST PERIOD
LDN KNIGHT (20) (MCKEGG, DOMI) 6:44
LDN ANDERSON (8) (NAMESTNIKOV, FERRY) 11:23
LDN GRIFFITH (37) (WATSON) 13:34 PP
SECOND PERIOD
LDN GRIFFITH (38) (HORVAT, TINORDI)
THIRD PERIOD
LDN GRIFFITH (39) (NAMESTNIKOV, WATSON) 11:34
SHOTS
WSR 5 - 12 - 8 = 25
LDN 11 - 5 - 12 = 28
PPS
WSR 0-FOR-2
LDN 1-FOR-3