The draw for the first round of the Ontario Cup was made on Saturday night 8 June 1918.
First round
Toronto Scottish vs Royal Flying Corps.
Hamilton vs Baracas
Ulster United vs Davenport Albions
Old Country vs Brantford
Semi-finals
July 3, 1918 University of Toronto Stadium
Toronto Scottish 10, Old Country 0
Toronto Scottish qualified for the Ontario Cup final
July ??, 1918
Davenport Albion qualified for the Ontario Cup final
Ontario Cup final
September 28, 1918 Varsity Stadium, Toronto
Toronto Scottish 1 (Fidler)
Davenport Albion 0
Toronto Scottish: Steve Smith; Geordie Campbell, William Brownlie; Harry A’Court, Young, James; Harry Anderson, H. Fidler, Houison, Ernie Fidler, Hunter.
Davenport Albion: Enfield; Robinson, Buchan; Brown, Adams, Brookes; Barron, A. Walker, McNeilly, S. Walker, Simpson.
Toronto Scottish won the 1918 Ontario Cup