The division was created in 1974-75 during a realignment, for schools with an enrolment of 300-749 students. The champion is awarded the Gary Deman Trophy.
| YEAR | CHAMPION | COACH | FINAL | RUNNER-UP |
| 74-75 | Sherwood Park Archbishop Jordan | Gerry Karpinka | 61-38 | Edmonton St. Mary |
| 75-76 | Sherwood Park Archbishop Jordan | Gerry Karpinka | 86-48 | Medicine Hat McCoy |
| 76-77 | Sherwood Park Archbishop Jordan | Gerry Karpinka | 66-45 | Ponoka Composite |
| 77-78 | Calgary John Diefenbaker | Del Anderson | 58-53 | Medicine Hat McCoy |
| 78-79 | Calgary John Diefenbaker | George Lepard | 67-56 | Sherwood Park Archbishop Jordan |
| 79-80 | Taber W.R. Myers | Tim Rollingson | 64-55 | Sherwood Park Archbishop Jordan |
| 80-81 | Sherwood Park Archbishop Jordan | Wayne Ashton | 67-59 | Calgary Viscount Bennett |
| 81-82 | Calgary Bowness | Daun Daum | 63-49 | Sherwood Park Archbishop Jordan |
| 82-83 | Edmonton Louis St. Laurent | Tom Solyom | 70-68 | Calgary Viscount Bennett |
| 83-84 | Sherwood Park Archbishop Jordan | Wayne Ashton | 65-39 | Leduc Composite |
| 84-85 | Calgary Bowness | Dan Daum | 61-58 | Sherwood Park Archbishop Jordan |
| 85-86 | Calgary Bowness | Dan Daum | 57-54 | Claresholm Willow Creek |
| 86-87 | Calgary Bowness | Dan Daum | 79-54 | Camrose Composite |
| 87-88 | Red Deer Camille J. Lerouge | Bill Holden | 61-51 | Sherwood Park Archbishop Jordan |
| 88-89 | Sherwood Park Archbishop Jordan | 88-78 | Claresholm Willow Creek | |
| 89-90 | Claresholm Willow Creek | Dennis Simpson | 73-68 | Sherwood Park Archbishop Jordan |
| 90-91 | Red Deer Camille J. Lerouge | 89-88 | Coaldale Kate Andrews | |
| 91-92 | Red Deer Camille J. Lerouge | John Johnston | 71-63 | Lethbridge Catholic Central |
| 92-93 | Airdrie Bert Church | Allen Gallup | 97-84 | Cardston |
| 93-94 | Airdrie Bert Church | Allen Gallup | 70-49 | Red Deer Camille J. Lerouge |
| 94-95 | Okotoks Foothills | Garry Tink | 65-50 | Red Deer Camille J. Lerouge |
| 95-96 | Camrose Composite | Neil Johnston | 83-64 | Airdrie Bert Church |
| 96-97 | Ponoka Composite | Blaine Haines | 73-67 | St. Albert |
| 97-98 | Airdrie Bert Church | Allen Gallup | 84-53 | Camrose Composite |
| 98-99 | Edmonton Louis St. Laurent | 82-66 | Airdrie Bert Church | |
| 99-00 | Calgary Springbank | Richard Bohne | 79-54 | Calgary Chestermere |
| 00-01 | Ponoka Composite | Blaine Haines | 71-64 | Airdrie Bert Church |
| 01-02 | Devon John Maland | Vincent May | 89-72 | Edmonton Louis St. Laurent |
| 02-03 | Edmonton Austin O’Brien | Chris Hubick | 78-75 | Calgary Springbank |
| 03-04 | Cochrane | Ted Hellard | 81-77 | Okotoks Holy Trinity |
| 04-05 | Rocky Mountain House Will Sinclair | Derek Durocher/Rob Doig | 69-65 | Camrose Composite |
| 05-06 | Okotoks Holy Trinity | Sam Aiello | 66-39 | Calgary Springbank |
| 06-07 | High River Highwood | Jeromy Hall | 80-74 | Okotoks Holy Trinity |
| 07-08 | Calgary Chestermere | Rob Wilson | 76-68 | Okotoks Holy Trinity |
| 08-09 | Calgary Chestermere | Rob Wilson | 93-88 | Calgary Springbank |
| 09-10 | Medicine Hat Crescent Heights | Lee Woodward | 67-50 | Wetaskiwin |
| 10-11 | Cochrane | Jim Forrest | 67-58 | Wetaskiwin |
| 11-12 | Camrose | James Saby | 60-57 | Cochrane |
| 12-13 | Edmonton Christian | Rob Hofstede | 73-65 | Cochrane |
| 13-14 | Calgary Chestermere | Mitch Turgeon | 96-86 | Lethbridge Winston Churchill |
| 14-15 | Spruce Grove St. Peter the Apostle | Chris Delano | 88-56 | Leduc |
| 15-16 | Calgary Chestermere | Kirby Dugdale | 97-94 | Sherwood Park Strathcona Christian |
| 16-17 | Spruce Grove St. Peter the Apostle | Chris Delano | 74-63 | Camrose |
| 17-18 | Edmonton Christian | Rob Hofstede | 104-93 | Camrose |
| 18-19 | Calgary All Saints | Kurt Luttermerding | 77-69 | Edmonton Christian |
| 19-20 | CANCELLED | (covid-19 pandemic) | —— | Qualifiers undetermined |
| 20-21 | CANCELLED | (covid-19 pandemic) | —— | —————— |
| 21-22 | Cochrane | Patrick Court | 74-64 | Edmonton Mother Mary Margaret |
| 22-23 | Spruce Grove St. Peter the Apostle | Chris Delano | 103-41 | Fort McMurray Holy Trinity |
| 23-24 | Fort McMurray Holy Trinity | Grace Lokole | 85-84 | Strathmore |