Rask last season had a 19-10-5 record with a goals-against average of 2.00, a .929 save percentage and five shutouts. He followed that by leading all goaltenders in save percentage (.940) during the Stanley Cup Playoffs while finishing fourth with a 1.88 GAA and tying for first with three shutouts.
The Bruins lost the Final in six games to the Chicago Blackhawks.
"That would be an ideal situation, I think, to play here forever," Rask said after the season ended. "I hope we can make that happen."
Rask set a club record with a home playoff shutout streak of 193:16, spanning from Game 4 of the Eastern Conference Final to Game 3 of the Stanley Cup Final.
In 2011-12, Rask appeared in 23 games, with an 11-8-3 record, 2.05 GAA and .929 save percentage. In 2009-10, Rask set a career high in wins (22) and led the NHL with a 1.97 GAA and .931 save percentage, becoming the first Bruins goaltender to have a GAA less than 2.00 since 1998-99. His GAA that season was the lowest by any Bruins goaltender since the 1938-39 season.
"I played good, proved [to] everyone again that I was capable of doing it," Rask said in June, according to The Associated Press. "I mean, you look at the numbers. They're good. If I just analyze my game and by how I felt throughout the year, I thought it was a great year."
In 138 NHL games, all with the Bruins, Rask has a 66-45-16 record with 16 shutouts, a 2.15 GAA and a .927 save percentage. He has appeared in 35 playoff games, with a 21-14 record, 2.15 GAA, .930 save percentage and three shutouts.