Ernest Glassco was the brother of fellow lawn tennis player Malcolm Glassco. They were two of the children of William Henry Glassco (1820-1899) and Sarah Ann Glassco (née Bond; 1820-1904).
Preliminary Round
Ernest Spencer Glassco 1 *
Mr. Blight
6-3
6-4
Round 1
Ernest Spencer Glassco 1 *
Mr. Morrow
6-5
???
6-4
Round 2
Ernest Spencer Glassco 1 *
Archibald Daniel McLean
6-4
6-3
Quarterfinals
Ernest Spencer Glassco 1 *
Mr. Witchell
6-1
6-1
Semifinals
Ernest Spencer Glassco 1 *
Thomas McAvity Stewart
6-3
7-5
Final
Ernest Spencer Glassco 1 *
Robert Baird
6-1
5-7
6-2
3-6
6-3
Challenge Round
Ralph A. Burns 1 *
Ernest Spencer Glassco
3-6
6-4
6-4
8-10
7-5
Round 1
Ernest Spencer Glassco 1 *
Harold Donly (Harry) Kirkover
6-1
6-3
Quarterfinals
Ernest Spencer Glassco 1 *
Henry M. Hall
6-3
6-3
Semifinals
Ernest Spencer Glassco 1 *
Alexander Tertius Carson McMaster
4-6
8-6
6-0
Final
Edwin Philip Fischer 1 *
Ernest Spencer Glassco
3-6
6-3
6-4
6-1