1930-31 OHA Senior B Season

This is the 1930-31 Ontario Hockey Association Senior B season:

Group 1
Note:Oshawa dropped out before season started.

Group 2
This group was also the Western Section of the 1930-31 Intermediate Intercollegiate Series.

Group 3
Windsor MicMacs (only team)

Semi Final
2 games total goals

Windsor MicMacs beat University of Toronto 6 goals to 3.

Final
2 games total goals

Windsor MicMacs beat Belleville 9 goals to 3.

Windsor MicMacs advanced to the Senior A-Senior B Final.