Due to the abbreviated 48-game schedule, the Maple Leafs played only teams from their own Eastern Conference. Within their division, they played the Boston Bruins and Buffalo Sabres four times each, and the Montreal Canadiens and Ottawa Senators five times each. The Maple Leafs played all non-divisional Eastern Conference opponents three times each.
Toronto qualified for the playoffs for the first time in nine years and the first time in eight seasons (as the 2004–05 season was not played due to the 2004–05 NHL lockout). The Leafs lost Game 7 in the first round against the Boston Bruins despite holding a 4–1 lead with 11 minutes to go in the third period, though Toronto had battled back from a three games to one deficit just to force the seventh game. The Leafs would not qualify for the playoffs again until the 2016–17 season.
†Denotes player spent time with another team before joining the Maple Leafs. Stats reflect time with the Maple Leafs only.
‡Traded mid-season
Bold/italics denotes franchise record
Transactions
The Maple Leafs have been involved in the following transactions during the 2012–13 season.
The Toronto Maple Leafs' third-round pick went to the Los Angeles Kings as the result of a June 26, 2010, trade that sent a 2010 third-round pick to the Maple Leafs in exchange for this pick.
The Toronto Maple Leafs' fourth-round pick went to the New Jersey Devils as the result of an October 4, 2011, trade that sent Dave Steckel to the Maple Leafs in exchange for this pick.
a The Anaheim Ducks' sixth-round pick went to the Toronto Maple Leafs as a result of a June 25, 2011, trade that sent a 2011 sixth-round pick to the Ducks in exchange for this pick.
The Toronto Maple Leafs' seventh-round pick went to the Calgary Flames as the result of a July 27, 2009, trade that sent Wayne Primeau and a 2011 second-round pick to the Maple Leafs in exchange for Colin Stuart, Anton Strålman and this pick.
b The New York Rangers' seventh-round pick went to the Toronto Maple Leafs as a result of a February 28, 2011, trade that sent John Mitchell to the Rangers in exchange for this pick.