1917 Toronto & District League
By March 3, 1917 eleven clubs had entered the T. and D. League. These clubs were Ulster United, Old Country, Royal Canadian Dragoons, British Imperial, Dunlop Rubber, Baracas, Danforth Albions, Toronto Street Railway, Wychwood, Corinthians and Sunderland Albions.
With the formation of the Provincial League Sunderland left the league. Baracas joined the new league but returned to the T. & D. before the start of the season.
The league started the the season in May 1917 with ten teams: Baracas, British Imperials, Corinthians, Dunlop Rubber, 48th Highlanders, Old Country, R.C. Dragoons, Toronto Street Railway, Ulster United and Wychwood Lancashire.
Corinthians withdrew in May 1917 after having played one league game and joined the Provincial League.
By June 1917 the members of the T. & D. were nine teams: Baracas, British Imperials, Dunlop Rubber, 48th Highlanders, Old Country, R.C. Dragoons, Toronto Street Railway, Ulster United and Wychwood Lancashire.
1917 Ontario Provincial Football League
The Ontario Provincial Football League was formed in March 1917 by clubs that were disgruntled by the way soccer was run in Ontario. The new league applied for membership in the Ontario Football Association. This led to a full fight with the T. & D. League.
Teams (5): Corinthians, Flying Corps, Irish-Canadians, Toronto Scottish, Sunderland
Corinthians joined the league in May 1917.
1917 Shamrock Cup Final
Champions: Flying Corps
1917 Ontario Cup