[5] Due to the midseason departure of the Thief River Falls Norskies, the remaining teams played between 37 and 45 regular season games.

[6] The second place Red Lake Miners won the league championship Bill Salonen Cup for the first time in its 9-year history, after defeating the Kam River Fighting Walleye in game 6 of the final, and went on to compete for the 2022 Centennial Cup national championship.

[7] In previous years, the SIJHL champions would go on to compete with the champions of the Northern Ontario Junior Hockey League and the Ontario Junior Hockey League for the Dudley Hewitt Cup regional championship, with the winner advancing to the national championship tournament to play for the Centennial Cup.

[3][8] In 2022, due to scheduling difficulties, Hockey Canada decided not to hold regional championships, and instead expanded the national tournament to include teams from each of the 9 leagues.

[7][9] At the nationals, the Red Lake Miners were eliminated from contention after losing to the Brooks Bandits of the AJHL (11–2), Pickering Panthers of the OJHL (9–2), Collège Français de Longueuil of the QJHL (6–1), and Estevan Bruins of the SJHL (6–2).