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
James Norris Memorial Trophy is named in honour of James E. Norris, owner of the National Hockey League's Detroit Red Wings from 1932 to 1952. The trophy was first awarded at the conclusion of the 1953–54 NHL season. Bobby Orr of the Boston Bruins won the award for a record eight consecutive seasons (1968–75). Doug Harvey and Nicklas Lidstrom have won the award seven times, while Ray Bourque won it five times. The Boston Bruins have had the most Norris Trophies winners with 14; the Montreal Canadiens have had the second most with 12. Only two players have won both the Norris and Hart