The 1940 National Football League Championship Game, December 8, 1940, Bears 73, Redskins 0.
Super Bowl XXIV
UNLV Running Rebels
45
19-0 goal scorers: dan gladstone 8 (og) , ryan nelson 3(og) AND darren mee (4) jake greener (4)
52
16 Oct 2006 Brazil 95 - 0 Costa Rica
The largest margin of victory was 30 pts in a champtionship game. Not sure about just tournament games.
52-2
I'm pretty sure UNLV beat Duke by 30pts in the 1990 title game
7
The largest margin of victory in an NFL game was 73 by the Chicago Bears in the 1940 NFL Championship game. The Bears beat the Redskins 73-0.