BALTIMORE - The Baltimore Orioles' week just keeps getting stranger.

They played 17 innings and infielder Chris Davis earned the win against Boston Sunday. Two days later, they surrendered four homers to Texas Rangers slugger Josh Hamilton.

And in the front end of Thursday's doubleheader, the Orioles became the first team in American League and club history to start a game with back-to-back-to-back homers.

"Nothing surprises me when you're dealing with this level of skill," Baltimore manager Buck Showalter said. "These are the best players in the world, but they're also human beings who are susceptible to things and capable of doing great things.

"It's always an honor to sit there and watch them. There's not a day that goes by that something doesn't happen."

Ryan Flaherty opened the contest with his first career home run, a solo shot to right for Baltimore's first leadoff blast of the season.

J.J. Hardy followed with a homer to left, his eighth. Nick Markakis finished the run by hammering an 0-2 pitch to right for his fifth of the year.

While it was the first time an AL team has done it, it was the fourth in baseball history.

The Milwaukee Brewers were the last team to hit three in a row to start a game, when they did it on Sept. 7, 2007. Oddly enough, Hardy was also a part of that one, as he homered in between Rickie Weeks and Ryan Braun.

The Orioles finished with five homers in the 6-5 Game 1 win over the Rangers for their first five-homer game since June 30, 2010.