The night went down hill after the Bourque appearance/By S. Bradley

BOSTON — Some people fear Friday the 13th.

If you play for the Bruins, you should fear May the 14th.

For the fifth straight time that the Bruins played on May 14, they lost a postseason game. Tonight it was a 5-2 debacle at the hands of the Tampa Bay Lightning in Game 1 of the Eastern Conference Final at the TD Garden.

The Lightning now lead the best-of-seven series 1-0.

The Bruins’ season ended each of the last two years in Game 7 defeats on May 14. They haven’t won on the date since 1988.

Luckily for the Bruins, May 14 only happens once a year.

Here’s a quick glance at the box score:

•Sean Bergenheim scored his league-leading eighth postseason goal to get the Lighnting on the board first 11:15 into the game. The Lightning scored three goals for a 3-0 lead in a matter of just 1:25, with Brett Clark and Teddy Purcell adding the other scores.

•Purcell’s goal was the direct result of an egregious giveaway by Tomas Kaberle as the veteran defenseman attempted to carry the puck out from behind his own net.

“He didn’t take it from me, the puck slid on my blade and I tried to make a move. Those things you have to put behind you, the past behind you,” said Kaberle. “I felt good in the first period, I thought I had good legs, when you make a mistake, you have to put it behind you, that’s all you have to do. If you keep thinking about it it’s not going to make you any better.”

•Tyler Seguin scored a goal on his first NHL postseason shot. Johnny Boychuk scored Boston’s other goal when the game was already decided with 1:01 left in regulation.

•In net, Tim Thomas finished with 29 saves on 33 shots for the Bruins. Dwayne Roloson made 31 saves for Tampa Bay.