Here are 14 franchise marks for the Toronto Maple Leafs.
Most Wins In One Season – 45 (3x – 1998-1999, 1999-2000, 2003-2004)
Fewest Wins in One Season – 20 (2x – 1981-1982, 1984-1985)
Most Losses In One Season – 52 (1984-1985)
Fewest Losses In One Season – 16 (1950-1951) *min
70 GP season
Most Ties In One Season – 22 (1954-1955) *70 game schedule
Most OT Losses In One Season – 10 (2009-2010)
Most Shoot-out Losses In One Season – 7 (3x – 2005-2006, 2006-2007.