2018 Manitoba Saskatchewan Senior Playoff

Due to the 2018 Allan Cup being held in Rosetown, Saskatchewan the 2018 Rathgaber Cup was not needed due to the fact that no team from Quebec was participating in Allan Cup qualifying. Traditionally, the host branch would receive the unused bid and the regional bid would go to the team that would have been the final opponent in qualifying.

Manitoba
The Ile des Chenes North Stars and South East Prairie Thunder have confirmed they are playing at the Senior AAA level for 2017-18. The provincial representative/champion would at this point qualify for the 2018 Allan Cup as Western region representative as the two Saskatchewan Senior AAA teams qualify as the host team and the other in an unused Quebec spot. South East Prairie Thunder defeated the Ile des Chênes North Stars three games to none to win the Pattison Cup and qualified for the 2018 Allan Cup.

Saskatchewan
The Rosetown Red Wings qualify for the 2018 Allan Cup as host team.

The Bethune Bulldogs have announced they are participating at the Senior AAA level for 2017-18. '''The Bethune Bulldogs qualify for the 2018 Allan Cup via the unused Quebec spot. ''' The Saskatchewan Hockey Association still scheduled a series to have a provincial tournament to determine the Province's Senior AAA champion.