Known as Division A from 48-49 thru 66-67; as Division AA from 67-68 thru 71-72. Became Division 3A with the formal creation of OFSAA in 72-73.

YEAR CHAMPION COACH FINAL RUNNER-UP
27-28 Windsor-Walkerville Vocational J.L. McNaughton 38-24 Ottawa Glebe
28-29 Windsor Assumption John Higgins   T: 36-33  Kingston Collegiate 
29-30 Windsor Assumption John Higgins  T:58-25  Newmarket Pickering 
30-31 Newmarket Pickering    T:85-49   Niagara Falls Stamford  
31-32 Windsor-Walkerville Vocational John Murray  (2-g1) Niagara Falls Stamford 
32-33 Windsor-Walkerville Vocational John Murray 33-17 Hamilton Westdale
33-34 Toronto Humberside C.S. Patterson T:67-59 Ottawa Glebe
34-35 Windsor Patterson Ed Dawson 37-29 Ottawa Glebe
35-36 Windsor-Walkerville Vocational Ian Allison 35-20 Ottawa Glebe
36-37 Windsor W.C. Kennedy George Chapman 44-17 Hamilton Central
37-38 Windsor W.C. Kennedy George Chapman 24-23 Ottawa Glebe
38-39 Windsor-Walkerville Vocational Arnold Harrison 29-23 Ottawa Glebe
39-40 Windsor-Walkerville Vocational Arnold Harrison 33-30 Ottawa Lisgar
40-41 Ottawa Lisgar Harold Rothwell 28-15 London Central
41-42 Windsor Patterson   41-22 St. Catherine’s CI
42-43 St. Catharines CI Jim Weaver 32-22 Toronto Riverdale
43-44 St. Catharines CI Jim Shaver 34-29 Toronto West End Y
44-45 Toronto Western Tech Dalton White 40-28 Kitchener-Waterloo CI
45-46 Toronto East York   39-33 Toronto Oakwood
46-47 Windsor Patterson Joe Mencel 47-46 Toronto Runnymede
47-48 Windsor Patterson Joe Mencel 53-46 Ottawa Glebe
48-49 Toronto East York B. Miller 41-37 Sudbury Tech
49-50 Sault Ste. Marie CI Tom Tipton 54-35 Niagara Falls CVI
50-51 Niagara Falls CVI Jimmy Rose 43-32 Toronto Humberside College
51-52 Niagara Falls CVI Jimmy Rose 65-63 Windsor Patterson CI
52-53 Niagara Falls CVI Jimmy Rose 62-44 North Toronto Collegiate
53-54 Windsor Patterson Joe Mencel 65-59 Niagara Falls C.V.I.
54-55 Niagara Falls Stamford CI Johnny Lees 54-47 Windsor Patterson CI
55-56 Windsor Assumption Father Matt Sheedy 66-56 London Sir Adam Beck CI
56-57 London Sir Adam Beck CI Roger McCaulay 67-35 Toronto East York CI
57-58 Windsor Assumption Father Matt Sheedy 60-55 Sudbury HS
58-59 Toronto Runnymede CI Terry Housley 52-45 Sudbury HS
59-60 Toronto Runnymede CI Terry Housley 44-24 Sudbury St. Charles
60-61 Windsor John L. Forster Bill Burleigh 56-46 Ottawa Fisher Park HS
61-62 Niagara Falls CVI Jimmy Rose 62-38 Niagara Falls District HS
62-63 Niagara Falls CVI Jimmy Rose 57-34 Sudbury St. Charles
63-64 WEST: Niagara Falls CVI
EAST: Brantford St. John’s 		Jimmy Rose
Brother Harvey Roach 		69-42
51-39 		Hamilton Hill Park SS
Sudbury St. Charles
64-65 WEST: Hamilton Hill Park SS
EAST: Sudbury Sheridan Tech 		Bob Leedale
Alex MacPherson 		43-40
57-54 		Windsor Walkerville
Sault Ste. Marie Collegiate
65-66 WEST: Windsor Walkerville CI
EAST: Ottawa Ridgemont HS 		Fred Montour
Bruce Campbell 		47-40
68-45 		Sault Ste. Marie Collegiate
Oshawa Central CI
66-67 WEST: Windsor Assumption
EAST: Peterborough Adam Scott 		Jack Hool
X 		45-39
46-34 		Hamilton Cathedral
Oshawa Central CI
67-68 Hamilton Cathedral Father Kyran Kennedy 57-37 Sudbury St. Charles
68-69 Windsor Assumption Jack Hool 60-35 Brantford Pauline Johnson
69-70 Kitchener Forest Heights Don McCrae 67-61 Tillsonburg Glendale
70-71 Burlington Nelson John MacLennan 58-56 Kitchener Forest Heights
71-72 Windsor F.J. Brennan Ron Innocente 54-48 Welland Notre Dame
72-73 Kitchener Eastwood Hugh Heibein 56-38 Toronto George Harvey
73-74 Ottawa Lisgar Larry Hale 48-39 Tillsonburg Glendale
74-75 Niagara Falls Stamford C.I. Robert Coull 60-51 Sault Ste. Marie Bawating
75-76 Windsor W.D. Lowe SS Gerry Brumpton 66-53 Tillsonburg Glendale
76-77 Windsor W.D. Lowe SS Gerry Brumpton 62-56 Toronto Runnymede
77-78 St. Catharines Gov. Simcoe Ken Walsh 77-60 Brantford St. John’s
78-79 Sarnia Central John Thrasher 54-49 Windsor W.D. Lowe
79-80 Windsor W.F. Herman SS Chris McCaffrey 77-68 Toronto Oakwood
80-81 Windsor W.F. Herman SS Chris McCaffrey 54-52 Windsor W.D. Lowe
81-82 Toronto Eastern Commerce Ernie Armstrong 76-61 Windsor W.D. Lowe
82-83 Kitchener Cameron Heights Court Heinbuch 44-42 Windsor W.F. Herman
83-84 Hamilton Cathedral Mark Walton 57-53 Toronto Runnymede
84-85 Toronto Runnymede John Petruschak 59-55 Toronto Eastern Commerce
85-86 Toronto Runnymede John Petruschak 58-56 Niagara Falls Stamford
86-87 Kitchener St. Jerome’s Tom Kieswetter 53-51 Agincourt Stephen Leacock CI
87-88 North York Bathurst Heights Bob Maydo 72-55 St. Catharines Governor Simcoe
88-89 Toronto Runnymede John Petruschak 80-64 Ottawa Sir Robert Borden
89-90 Toronto Runnymede John Petruschak 68-66 Toronto Oakwood CI
90-91 Hamilton St. Mary’s Joe Raso 73-70 Windsor W.D. Lowe
91-92 Oshawa O’Neill Craig Andrews 64-56 Toronto Runnymede
92-93 Toronto Oakwood Terry Thomson 58-36 Brantford St. John’s
93-94 Hamilton Cathedral Mark Walton 54-29 Ottawa Sir Robert Borden
94-95 Toronto Eastern Commerce Simeon Mars 49-47 Mississauga Westwood
95-96 Toronto Eastern Commerce Simeon Mars 65-54 Toronto Runnymede
96-97 Scarborough Dr. Norman Bethune Bob Selkirk 67-42 Toronto Oakwood
97-98 Hamilton Cathedral Mark Walton 50-49 Toronto Eastern Commerce
98-99 Guelph St. James Bob Sharp 83-59 Hamilton Cathedral
99-00 North York Bathurst Heights Bob Maydo 73-43 Ottawa St. Patrick’s
00-01 Burlington Nelson Bob Stacey 54-45 Burlington Notre Dame
01-02 Toronto Central Commerce Larry Laughlin 64-55 Dundas Highland
02-03 Kingston Frontenac Suche James 58-49 Toronto Central Commerce
03-04 Toronto Emery Bob Maydo 48-46 Sarnia St. Claire
04-05 Sarnia St. Patrick’s Adam Aquilina 68-63 Toronto Emery
05-06 Windsor Catholic Central Pete Cusumano 69-66 Toronto Vaughan Road
06-07 Cambridge Southwood Rob Baird 39-37 Windsor Catholic Central
07-08 Ottawa St. Patrick Mike Rowley 63-62 Thornhill Vaughan
08-09 Ottawa St. Matthew Jason Wren/Will Hinz 57-47 Toronto Emery
09-10 Etobicoke Martingrove Shawn Gray 56-54 Oakville St. Ignatius of Loyola
10-11 Whitby Anderson Dean Hutchcroft 69-64 Newmarket Dr. John M. Denison
11-12 Whitby Anderson Dean Hutchcroft 62-60 Burlington Notre Dame
12-13 Windsor Catholic Central Pete Cusumano 75-51 Ottawa St. Patrick
13-14 Stoney Creek Saltfleet Dave Ormerod 54-50 Windsor Catholic Central
14-15 Windsor Catholic Central Pete Cusumano 66-58 Toronto West Humber
15-16 Etobicoke Father Henry Carr Paul Melnik 61-53 Toronto Oakwood
16-17 Toronto St. Michael’s Jeff Zownir 71-90 Cambridge St. Benedict
17-18 Pickering Pine Ridge Cameron Nekkers 76-72 Mississauga St. Francis Xavier
18-19 Pickering Pine Ridge Cameron Nekkers 51-48 Kingston LaSalle
19-20  North York Crestwood  Ro Russell  79-55  Windsor W.C. Kennedy  
20-21  CANCELLED  (covid-19 pandemic)  —–   ———————————
21-22  CANCELLED    (covid-19 pandemic)  —–   ———————————
22-23  Toronto Oakwood  Anthony Miller 69-51   Chatham Ursuline
23-24Toronto Oakwood Anthony Miller53-38Stoney Creek Saltfleet
24-25Ajax PickeringDavid Jackson69-56London Mother Theresa