Presidents' Trophy Prior to 1926–27, the Stanley Cup was then awarded as a "World Series" trophy between the champions of the NHL and a rival league (first the Pacific Coast Hockey Association, then the Western Canada Hockey League). Instead, the NHL championship trophy during this era was the O'Brien Trophy. From 1917–18 to , the NHL season was split, requiring separate standings, with a single playoff series between the winner of the first half of the season and the winner of the second half of the season. After the 1925–26 season, the NHL became the only league left competing for the Stanley
Vezina Trophy GAA not to be a member of the team that allowed the fewest goals. The Vezina continued to be awarded to the goaltender who started the most games for the team that allowed the fewest goals, but the Vezina winners of , , and did not have the lowest GAAs. The National Hockey League began allowing teammates to split the Vezina Trophy following the 1964–65 NHL season. The Toronto Maple Leafs allowed 173 goals against, barely beating out Montreal's 175 goals against and Chicago's 176 goals against. Terry Sawchuk played 36 games for the Leafs with a GAA of 2.56,