Rask turned aside 22 of 24 shots in Sunday's 4-2 win over the Maple Leads in Game 6 of their first-round series.
Rask will start between the pipes in Sunday's Game 6 road matchup with Toronto.
Rask will tend the twine for Friday's Game 5 home clash with the Maple Leafs, NHL.com reports.
Rask stopped 38 of 42 shots in Wednesday's 6-4 win over the Maple Leafs in Game 4 of their first-round series.
Rask will guard the cage in Wednesday's Game 4 against the Maple Leafs in Toronto, Joe Haggerty of NBC Sports Boston reports.
Rask stopped 31 of 34 shots in Monday's 3-2 loss at the hands of Toronto in Game 3 of the best-of-seven series.
Rask will start Monday's playoff game against the Maple Leafs.
Rask made 30 saves Saturday in a 4-1 win over the Maple Leafs in Game 2 of their opening-round series.
Rask will be in goal Saturday when Boston looks to even the best-of-seven series against Toronto, Matt Porter of The Boston Globe reports.
Rask will get the starting nod for Game 1 at home versus Toronto on Thursday, Joe Haggerty of NBC Sports Boston reports.