Rask gave up three goals on 22 shots en route to a 3-2 loss to the Senators on Tuesday.
Rask will start Tuesday's game against the Senators.
Rask allowed two goals on 27 shots in Monday's 4-2 loss against the Maple Leafs.
Rask will be in the crease for Monday's game in Toronto, and might get the start on Tuesday against Ottawa as well, Joe Haggerty of CSN New England reports.
Rask was pulled after surrendering five goals on 17 shots Thursday in Edmonton.
Rask will tend the twine Thursday against the Oilers, Fluto Shinzawa of the Boston Globe reports.
Rask allowed three goals on 29 shots in a 6-3 win over Vancouver on Monday.
Rask led the Bruins on the ice for warmups and will start Monday in Vancouver.
Rask is projected to start Monday's game against the Canucks.
Rask had the answer for all but one of Philadelphia's shots in a 2-1 win on Saturday afternoon. He made 25 saves.