Lightning 6, Senators 4: Ryan Malone's second goal of the third period snapped a tie with 7:02 remaining as Tampa Bay opened its season-high five-game homestand by handing Ottawa its first loss.
Steven Stamkos collected a goal and two assists and defensemen Victor Hedman and Matt Carle netted their first goals of the season. Tom Pyatt added an empty-net goal and Anders Lindback turned aside 32 shots for the Lightning.
Jason Spezza and reigning Norris Trophy winner Erik Karlsson scored 15 seconds apart to highlight the Senators' four-goal second period. Kyle Turris added his fourth goal of the season and Erik Condra also tallied for the Senators, who defeated Tampa Bay in all four outings in 2011-12.
After deflecting defenseman Sami Salo's shot from the point to tie the game at 3:39 of the third period, Malone gave Tampa Bay a 5-4 lead by settling the puck following Vincent Lecavalier's wide shot and beating Ben Bishop from the left faceoff circle.
Pyatt's empty-net goal sealed the win for Tampa Bay, which has outscored its opponents by an 11-1 margin in the third period.
GAME NOTEBOOK: Prior to the contest, Lecavalier was honored with a silver stick in a ceremony to commemorate him playing in his 1,000th NHL game on Monday. Lecavalier is one of 49 players to reach the plateau while playing for just one franchise. ... Bishop, who was making his season debut, finished with 25 saves. ... Former Lightning D Mike Lundin sat out with a broken finger and Senators LW Guillaume Latendresse was scratched with an undisclosed minor injury.