PITTSBURGH (AP) - Pascal Dupuis had two goals and the Pittsburgh Penguins moved closer to clinching home-ice advantage in the first round of the playoffs with a 4-2 win over the New Jersey Devils on Tuesday night.

Jordan Staal and Chris Kunitz also scored for the Penguins, who won their regular season home finale to move three points ahead of fifth-place Tampa Bay in the Eastern Conference standings with two games to play. The Lightning lost 4-2 at Buffalo.

Pittsburgh remained three points behind conference-leading Washington, which won 3-2 in a shootout at Toronto.

David Steckel and Brian Rolston scored for the Devils, who were officially eliminated from playoff contention with their defeat to Montreal on Saturday.

TORONTO (AP) - Mike Knuble scored in the fourth round of the shootout to lift Washington.

Alex Ovechkin and John Erskine scored in regulation for the Capitals, who clinched the Southeast Division title for the fourth straight year and moved into first overall in the Eastern Conference. Knuble had the only goal in the shootout.

Nikolai Kulemin and Joffrey Lupul scored for the Maple Leafs, whose postseason push ended when Buffalo beat Tampa Bay 4-2. Toronto will miss the playoffs for franchise-record sixth straight season.

MONTREAL (AP) - P.K. Subban scored a power-play goal at 1:19 of overtime and Montreal clinched a playoff spot.

Carey Price made 42 saves for Montreal, which went on a 4-on-3 advantage 37 seconds into the extra period when Chicago captain Jonathan Toews was called for hooking Subban in the Canadiens' zone.

Subban drove a slap shot past Corey Crawford after Montreal coach Jacques Martin used his timeout going into the overtime. The rookie Canadiens defenseman turned and skated towards Price, who checked Subban to the ice as the Canadiens gathered around their teammates to celebrate their return to the postseason.

Michael Cammalleri scored in the second for Montreal, which is sixth in the Eastern Conference with 93 points.

NASHVILLE, Tenn. (AP) - Jordin Tootoo and Sergei Kostitsyn each had two goals and an assist, and Nashville moved closer to clinching a playoff berth.

The Predators jumped to fourth in the West with 97 points, and they need only one more point in their final two games or a Dallas loss to clinch their sixth playoff berth in the past seven seasons.

Matt Halischuk had a goal and an assist, Mike Fisher added a power-play goal and Patric Hornqvist had three assists for Nashville. The Predators finished off their 23rd win on home ice this season, making them the only NHL team to win that many each of the past six seasons.

Blake Wheeler scored twice in the third, and Nik Antropov also added a goal to pull the Thrashers within 6-3 at 17:10.

OTTAWA (AP) - Jason Spezza had a goal and three assists to lead Ottawa.

Ryan Shannon and Bobby Butler each had a goal and an assist, and Nick Foligno and Milan Michalek also scored for Ottawa. Craig Andersen stopped 27 shots and Filip Kuba added two assists.

The Senators have won two of three and four of their last five at Scotiabank Place to improve to 15-20-5 at home.

Mike Richards scored both goals for the Flyers, who failed to clinch the Atlantic Division title. Philadelphia lost its fourth straight and fifth in the last six. The Flyers also fell out of first place in the Eastern Conference, and now trail Washington by two points after the Capitals won at Toronto.

DALLAS (AP) - Kari Lehtonen made 23 saves for his 17th career shutout, Steve Ott scored his second goal in 25 games on the power play, and Dallas pulled closer to the final Western Conference playoff spot.

Loui Eriksson and Brenden Morrow had empty-netters in the final 53 seconds to secure the win for Dallas, which improved to 91 points, tied with idle Calgary for the No. 9 seed in the conference. The Stars and Flames are two points behind Chicago and Anaheim, tied at No. 7.

The Blackhawks got a point when they lost 2-1 in overtime at Montreal earlier Tuesday night. Anaheim and Calgary did not play. Dallas, Chicago and Anaheim all have three games left, and Calgary has two remaining.

ST. LOUIS (AP) - Kevin Shattenkirk had a goal and an assist against his former team, Andy McDonald added a goal and two assists, and St. Louis beat Colorado.

David Backes also scored to help St. Louis win for the fifth time in the last seven games. The Blues also snapped a seven-game losing streak to the Avalanche, beating Colorado for the first time since April 12, 2009.

Kevin Porter scored his career-best 14th goal of the season for the Avalanche, who have lost six of seven and 16 of their last 19.

Shattenkirk converted on a 5-on-3 power play early in the second period to give the Blues the lead for good 2-1. McDonald added an empty-netter with 40 seconds to go in the third.

BUFFALO, N.Y. (AP) - Thomas Vanek scored three times to lead Buffalo within a point of clinching a playoff berth.

Tim Connolly had a goal and two assists and Jhonas Enroth made 23 saves to improve to 3-0-1 in filling in since starter Ryan Miller was sidelined after taking a shot off the collarbone last week. Buffalo moved a point ahead of the seventh-place New York Rangers and five up on ninth-place Carolina.

Vincent Lecavalier and Ryan Malone scored for the Lightning, who had a five-game winning streak snapped and lost for the first time in four road games. The loss leaves Tampa Bay in fifth place after opening the night a point behind Pittsburgh in the race for home-ice advantage in the first round of the playoffs.

EDMONTON, Alberta (AP) - Devan Dubnyk made 26 saves, Ryan Jones and Magnus Paajarvi scored, and last-place Edmonton beat first-place Vancouver for the second consecutive game.

Dubnyk got his second shutout of the season for the Oilers, who won 4-1 at Vancouver on Saturday to snap an 11-game winless streak. Edmonton now has 61 points, topping the franchise-worst 60 it had in 1992-93.

The Canucks have lost consecutive games after winning 12 of 13 to clinch the Presidents' Trophy for the league's top record.