Barclay was informed by the directors that Toronto would not be permitted to play in the 1917–18 season due to the difficulty of operating a five-team league, both in scheduling and availability of players during wartime.
At the November 10, 1917 annual meeting of the NHA Livingstone was represented by J. F. Boland, who stated that if the league operated that the Toronto franchise intended to be a full member.
With the club losing money and no hope of catching Ottawa and Montreal in the standings in a three-team league, they requested permission to suspend operations for the season in late February 1919.
In October 1923, a ruling was made that Arena Gardens had abused its position as a trustee of the assets of the Toronto Hockey Club—its player contracts—and finding damages of CA$100,000 (equivalent to $1,707,609 in 2023) in favour of Livingstone.
[20] The following day, Querrie reached agreement with the owners of the amateur St. Patrick's club of the Ontario Hockey Association to purchase the franchise, allowing him to maintain an ownership stake in the team.
[23] Among the officers of the St. Patrick's Professional Hockey Club Ltd. at the start of the 1919–20 season were president Fred Hambly, vice-president Paul Ciceri, secretary-treasurer Harvey Sproule, Charlie Querrie, and player-coach Frank Heffernan.
Led by the "Kid Line" (Busher Jackson, Joe Primeau and Charlie Conacher) and coach Dick Irvin, the Leafs would capture their third Stanley Cup victory during the first season in their new home.
Undeterred, the Leafs would reach the finals five more times in the next seven years but would not win, bowing out to the now-defunct Maroons in 1935, the Detroit Red Wings in 1936, the Black Hawks in 1938, the Bruins in 1939, and the Rangers in 1940.
Three years later, with their heroes from 1942 dwindling (due to either age, health, or the war), the Leafs turned to lesser-known players like rookie goalie Frank McCool and defenceman Babe Pratt.
[37] The powerful defending champion Montreal Canadiens and their "Punch Line" (Maurice "Rocket" Richard, Toe Blake and Elmer Lach) would be the Leafs' nemesis two years later when the two teams clashed in the 1947 finals.
Ted "Teeder" Kennedy would score the game-winning goal late in game six to win the Leafs their first of three straight Cups — the first time any NHL team had accomplished that feat.
And then, Toronto was able to reel off another three straight Stanley Cup victories from 1962 to 1964, with the help of Hall of Famers Frank Mahovlich, Red Kelly, Johnny Bower, Dave Keon, Andy Bathgate and Tim Horton, and under the leadership of coach and general manager Punch Imlach.
[43]It was Bathgate's one-way ticket to the floundering Red Wings, but Toronto would, for a few more years, keep "The Big M." In 1967, the Leafs and Canadiens met in the Cup Finals for the last time.
He also blocked Keon from signing with another NHL team when his contract ran out in 1975, forcing him to jump to the Minnesota Fighting Saints of the World Hockey Association.
During the 1970s, with the overall level of talent in the league diluted by the addition of 12 new franchises and the rival WHA, the Leafs, led by a group of stars such as Darryl Sittler, Lanny McDonald, enforcer Tiger Williams, Ian Turnbull and Borje Salming were able to ice competitive teams for several seasons.
They only once made it past the second round of the playoffs, besting the New York Islanders, a soon-to-be dynasty, in the 1978 quarter-finals, only to be swept by their arch-rivals the Montreal Canadiens, in the semi-finals.
He had never forgiven the WHA for nearly decimating his roster in the early 1970s, and the addition of three Canadian teams (the Nordiques, Winnipeg Jets and Edmonton Oilers) significantly reduced the Leafs' revenue from Hockey Night in Canada broadcasts (which was now split six ways rather than three).
During the emotional post-game ceremony, legendary Canadian singer Anne Murray performed "The Maple Leaf Forever" while wearing a Toronto jersey.
The first Maple Leafs game at the new Air Canada Centre took place on February 20, 1999, against the Montreal Canadiens, where they won 3–2 with an overtime goal by Steve Thomas.
Mats Sundin, who had joined the team from the Quebec Nordiques in a 1994 trade involving Wendel Clark, had one of his most productive seasons, scoring 31 goals and totaling 83 points.
Sergei Berezin scored 37 goals, Curtis Joseph won 35 games with a 2.56 GAA, and enforcer Tie Domi racked up 198 penalty minutes.
The Leafs eliminated the Philadelphia Flyers and Pittsburgh Penguins in the first two rounds of the playoffs, but lost in five games to the Buffalo Sabres in the Eastern Conference Finals.
Joseph left to go to the defending champion Red Wings in the 2002 off-season; the team almost immediately found a replacement in veteran Ed Belfour, who came over from the Dallas Stars and had been a crucial part of their 1999 Stanley Cup run.
[48][49] Paul Maurice, who had previously coached the inaugural season of the Maple Leafs' Toronto Marlies farm team, was named as Quinn's replacement.
[59] Toronto faced Vancouver two times during the 2008–2009 season, losing in both showdowns, most notably during a shoot out decision on February 21, 2009, where Mats Sundin was honored at the ACC.
[61] On June 26, 2009, Burke made his first appearance as the Leafs GM at the 2009 NHL Entry Draft, selecting London Knights forward Nazem Kadri with the seventh overall pick.
[63] On January 31, 2010, the Leafs made another high-profile trade, this time with the Calgary Flames in a seven-player deal that brought defenceman Dion Phaneuf to Toronto.
[65] On February 18, 2011, the team traded long-time Maple Leafs defenceman Tomas Kaberle to the Bruins in exchange for prospect Joe Colborne, Boston's first-round pick in 2011, and a conditional second-round draft choice.
[97] As a result of the COVID-19 pandemic and travel restrictions at the Canada–United States border, the Leafs were temporarily moved to the North Division for the 2020–21 season alongside the NHL's other Canadian teams.
Aided by the arrival of goaltender Carter Hutton from the Arizona Coyotes on February 21, 2022, and the acquisition of defenceman Mark Giordano and center Colin Blackwell from the Seattle Kraken on March 21, the team cruised throughout the regular season.