| Men's Open | Men Rec | Women Open (A) | Women Rec (B) | Women Fun (C) | |
| 1978 | Coyotes (Mitchell) | ||||
| 1979 | London Wayne's Fina | ||||
| 1980 | London Clayton Street Metal | ||||
| 1981 | Kitchener Schneiders | ||||
| 1982 | unknown | ||||
| 1983 | St. Pauls Turnips | ||||
| 1984 | Kitchener Maric A's | ||||
| 1985 | Listowel A's | ||||
| 1986 | Amherstburg Courtside | ||||
| 1987 | Indy Lux | ||||
| 1988 | Amherstburg Courtside | ||||
| 1989 | Indy Lux | ||||
| 1990 | Stratford Weed Man | ||||
| 1991 | Kitchener Cougars | ||||
| 1992 | ppd. due to rain | ppd. due to rain | ppd. due to rain | ||
| 1993 | Stratford Weed Man | Monkton | |||
| 1994 | K-W Dodgers | Rubberbands (Stratford) | |||
| 1995 | Cougars (Kitchener) | Stratford Progress Aluminum | |||
| 1996 | Tribe (Stratford) | Stratford Progress Aluminum | |||
| 1997 | Stratford Turner Landscaping | Dirty Dozen (Clinton) | Rubberbands (Stratford) | ||
| 1998 | Stratford Turner Landscaping | Kamakazies (Mitchell) | Rubberbands (Stratford) | ||
| 1999 | Ball Dawgs (Owen Sound) | Stratford Fellinis | |||
| 2000 | Ball Dawgs (Owen Sound) | Sangsters (Stratford) | WWF (Kitchener) | ||
| 2001 | Dodge This (Owen Sound) | Noodles Romanoff (Elmira) | Rubberbands (Stratford) | ||
| 2002 | Waterloo Bama | Natural Edge (Kitchener) | Feelin' It (Cambridge) | ||
| 2003 | Feelin It | Band of Idiots | Rubberbands (Stratford) | ||
| 2004 | Hitmen (Stratford) | McIntyre (New Hamburg) | Feelin' It (Cambridge) | ||
| 2005 | Twins (Kitchener) | ||||
| 2006 | Hitmen (Stratford) | Jimmy's Chicken Shack | Rubberbands (Stratford) | ||
| 2007 | Fish Stix (Stratford) | Jimmy's Chicken Shack | Extreme Heat | ||
| 2008 | Hitmen (Stratford) | Just Enough (Seaforth) | Rubberbands (Stratford) | ||
| 2009 | Weekend Warriors (Stratford) | Magic Sticks (Mitchell) | Rubberbands (Stratford) | ||
| 2010 | Wolfpack (Stratford) | Padres (Mitchell) | WhoozeUp (London) | Biddulph Penner (Lucan) | -- |
| 2011 | Wolfpack (Stratford) | Gord Inc (Exeter) and The Reds (Mildmay) - split | Rubberbands (Stratford) | Polar Ice (Seaforth) | -- |
| 2012 | Castaways (Mitchell) | Seagulls (Zurich) | WhoozeUp (London) | Shooters (Mitchell) | Dirty Dozen (Stratford) |
| 2013 | Underdogs (Mitchell) | You're F'n Out (Mitchell) | Rubberbands (Stratford) | Young and the Balless (Stratford) | Brodhagen Bangers (Brodhagen) |
| 2014 | Castaways (Mitchell) | Coyotes (Mitchell) | Fired Up (Stratford) | Whooze Up (London) | Mangled-Shooters (Mitchell) |
| 2015 | Underdogs (Mitchell) | Shine (Stratford) | |||
| 2016 | Underdogs (Mitchell) | Shine (Stratford) | Brodhagen Bangers (Brodhagen) | ||
| 2017 | Bisons (Stratford) | Waterloo Dodgers | Shine (Stratford) | Pink Flamingos (Mitchell) | Rookies (Seaforth) |
| 2018 | Castaways (Stratford) | Phillies (Stratford) | Bad Decisions (London) | Wildthingz (Stratford) | -- |
| 2019 | ? | ? | ? | ? | -- |
| 2020 | COVID | -- | -- | -- | -- |
| 2021 | COVID | -- | -- | -- | -- |
| 2022 | -- | Rams (Mitchell) | Wildthingz (Mitchell) | -- | -- |
| Men's Open | Men Rec | Women A | Women B | Women Fun (C) |