Bruins 1, Senators 0 .

OTTAWA - Tuukka Rask made 33 saves for his second shutout, Nathan Horton scored early in the third, and the Boston Bruins won their season-high sixth straight, all on the road, with a 1-0 victory over the Ottawa Senators on Tuesday night.

Rask stopped 10 shots in the first period, 14 in the second and nine in the third for his eighth career shutout, his first since a 41-save effort in a 4-0 win over Florida on Nov. 18.

Horton scored his 18th goal 1:43 into the third when he put a loose puck into a gaping net off a goalmouth scramble.

Boston's 6-0 road trip matched the team's longest perfect trip since 1971-72, when the eventual Stanley Cup champions won six straight from Feb. 17-26.

The winning streak is the Bruins' longest in nearly two years. Boston, which leads the Northeast Division with 81 points, had a six-game streak from Mar. 22-Apr. 4, 2009.

Craig Anderson made 20 saves in his fifth straight start for Ottawa. Anderson is 3-2-0 with the Senators since he was acquired from Colorado on Feb. 18 in a trade that sent goalie Brian Elliott to the Avalanche.

Ottawa had won two in a row at home following a 10-game losing streak at Scotiabank Place. The Senators, who fell to 11-17-5 at home, are last in the Eastern Conference with 51 points.

Ottawa right wing Bobby Butler hit the top corner of the right post with less than a minute remaining in the second.

There was a lengthy video review moments later after Anderson made a pad save on Bruins captain Zdeno Chara's shot from the right side. The replay confirmed that the puck had not crossed the goal line.

NOTES: The Bruins had a 10-game winning streak earlier in the 2008-09 season, from Dec. 12-Jan. 1 ... Boston G Tim Thomas is second in the NHL with seven shutouts, one behind the New York Rangers' Henrik Lundqvist ... Senators D Filip Kuba played his 700th regular season game ... Ottawa G Curtis McElhinney, who was picked up from Tampa Bay on waivers Monday, dressed as Anderson's backup ... The Senators next play Thursday in Atlanta against the Thrashers (7 p.m., Sportsnet East, Team 1200).