This is the 1969-70 Manitoba Senior Hockey League Playoffs.
Regular Season[]
Teams[]
Semi-Finals[]
Series A[]
Best of 7
| Game | Visitors | Goals | Home Team | Goals | Date | Venue |
| 1 | Selkirk | 2 | Warroad | 8 | Thursday, February 19, 1970 | Warroad Memorial Arena |
| 2 | Warroad | 2 | Selkirk | 1 | Friday, February 20, 1970 | Selkirk Arena |
| 3 | Selkirk | 3 | Warroad | 4 | Sunday, February 22, 1970 | Warroad Memorial Arena |
| 4 | Warroad | 5 | Selkirk | 8 | Tuesday, February 24, 1970 | Selkirk Arena |
| Warroad Lakers defeated Selkirk Fishermen 4-games-to-none | ||||||
Note: Prior to Game #4, League President Ron Sorby informed Selkirk management that if the two Selkirk junior Steelers players, Ron Ramsay and Don Revel, used in Game #3, participated in the game, the series would automatically be awarded to the Warroad. Selkirk ignored the warning and dressed both players.
Series B[]
Best of 7
| Game | Visitors | Goals | Home Team | Goals | Date | Venue |
| 1 | Kenora | 4 | St. Boniface | 8 | Thursday, February 19, 1970 | Bertrand Arena |
| 2 | St. Boniface | 4 | Kenora | 3 | Friday, February 20, 1970 | Kenora Recreation Centre |
| 3 | Kenora | 4 | St. Boniface | 3 | Sunday, February 22, 1970 | Bertrand Arena |
| 4 | St. Boniface | 3 | Kenora | 1 | Monday, February 23, 1970 | Kenora Recreation Centre |
| St. Boniface Mohawks defeated Kenora Thistles 4-games-to-none | ||||||
Pattison Cup Championship[]
Best of 7
| Game | Visitors | Goals | Home Team | Goals | Date | Venue |
| 1 | St. Boniface | 6 | Warroad | 7 | Friday, February 27, 1970 | Warroad Memorial Arena |
| 2 | Warroad | 5 | St. Boniface | 6 | Sunday, March 1, 1970 | Bertrand Arena |
| - | St. Boniface | 2 | Warroad | 8 | Tuesday, March 3, 1970 | Warroad Memorial Arena |
| 3 | Warroad | 4 | St. Boniface | 6 | Sunday, March 8, 1970 | Bertrand Arena |
| 4 | St. Boniface | 4 | Warroad | 3 | Monday, March 9, 1970 | Warroad Memorial Arena |
| 5 | Warroad | 3 | St. Boniface | 6 | Wednesday, March 11, 1970 | Bertrand Arena |
| St. Boniface Mohawks defeated Warroad Lakers 4-games-to-1 | ||||||
Note: St. Boniface protested Game #3, claiming Warroad used an ineligible player. League President Ron Sorby launched an investigation and called in the Manitoba Amateur Hockey Association. George Allard secretary-manager of the MAHA, awarded the game to St. Boniface. However, MAHA President Bill Addison threw out the ruling, and ordered the game replayed.
- St Boniface Mohawks advanced to the 1969-70 Western Canada Allan Cup Playoffs