GTBL Champions: Year Winner Finalist Pennant 2019 Pickering Red Sox Thornhill Reds Newmarket Hawks 2018 Thornhill Reds Martingrove White Sox Thornhill Reds 2017 Pickering Red Sox Thornhill Reds Pickering Red Sox 2016 Thornhill Reds Pickering Red Sox Leaside Leafs 2015 Newmarket Hawks Pickering Red Sox East York Bulldogs 2014 Thornhill Reds East York Bulldogs Leaside Leafs 2013 Thornhill Reds East York Bulldogs Peterborough Riverdogs 2012 Leaside Leafs Martingrove White Sox Peterborough Riverdogs 2011 Markham Mariners Leaside Leafs Thornhill Reds 2010 Leaside Leafs Markham Mariners Leaside Leafs 2009 Leaside Leafs East York Bulldogs Oshawa Royals 2008 Leaside Leafs East York Bulldogs Oshawa Royals 2007 Leaside Leafs Thornhill Reds Leaside Leafs 2006 Newmarket Hawks Leaside Leafs Oshawa Royals 2005 East York Bulldogs Peterborough Riverdogs Peterborough Riverdogs 2004 Northumberland Whisky Jacks Newmarket Hawks Newmarket Hawks 2003 Thornhill Reds Newmarket Hawks 2002 Leaside Leafs Thornhill Reds 2001 Northumberland Whisky Jacks Leaside Leafs Northumberland Whisky Jacks 2000 Thornhill Reds North York Thunder North York Thunder 1999 North York Thunder 1998 North York Thunder Newmarket Hawks North York Thunder 1997 Etobicoke Rangers North York Shooters North York Shooters 1996 Etobicoke Rangers East York Bulldogs North York Shooters 1995 Leaside Leafs North York Shooters North York Shooters 1994 Etobicoke Rangers North York Shooters North York Shooters 1993 Etobicoke Rangers Leaside McSorley’s Etobicoke Rangers 1992 Etobicoke Indians North York O’Tooles East York Quinns 1991 North York O’Tooles East York Bulldogs Leaside Hurricanes 1990 East York Quinns Leaside Hurricanes East York Bulldogs 1989 Leaside Hurricanes East York Quinns Leaside Hurricanes 1988 Leaside Hurricanes East York Quinns Leaside Hurricanes 1987 Leaside Hurricanes York Pioneers Leaside Hurricanes 1986 Leaside Maple Leafs York Pioneers Leaside Maple Leafs 1985 East York Quinns Leaside Maple Leafs Leaside Maple Leafs 1984 Leaside Maple Leafs Etobicoke Indians Leaside Maple Leafs 1983 Leaside Maple Leafs Etobicoke Indians Leaside Maple Leafs.