Orioles Manager Buck Showalter removes starting pitcher Scott Feldman in the sixth inning at Camden Yards. (Rob Carr/GETTY IMAGES)

— Scott Feldman’s first home start in a Baltimore Orioles uniform didn’t go as the veteran right-hander planned Monday night.

Feldman was forced to watch from the dugout as the Texas Rangers opened up the game with a six-run sixth inning, charged with a season-high seven runs over 51 / 3 innings as the Orioles dropped an 8-5 decision in the series opener in front of an announced 24,619 at Camden Yards.

The loss was the Orioles’ fifth in their last eight games and their 10th in 14 regular season contests against the Rangers.

The Orioles (49-41), who entered the night tied with the Tampa Bay Rays for second place in the American League East, dropped into third after the Rays’ 7-4 win over the Minnesota Twins.

When the Orioles acquired Feldman from the Cubs in a trade that sent Jake Arrieta and Pedro Strop to Chicago, his career numbers at Camden Yards played a factor. He entered Monday’s start 3-0 with a 2.49 ERA in seven appearances.

But all of those successful starts at Oriole Park were for the Rangers, the team with which he spent his first eight years.

Feldman entered the sixth inning leading 3-2, but the advantage vanished quickly in that frame. With two on and one out, A.J. Pierzynski hit a one-out double that tied the game. After an intentional walk to Mitch Moreland loaded the bases, Elvis Andrus chased Feldman from the game with a go-ahead single.

Left-hander Troy Patton didn’t fare much better, allowing an RBI single to Engel Beltre and a three-run double to Ian Kinsler to put the Rangers (49-39) up 8-3 on their way to their 25th road win, best in the majors.

Feldman, who entered the sixth inning on his way to a quality start, allowed 12 baserunners, including a season-high nine hits and two hit batters.

“I wasn’t too good,” Feldman said. “Got an early lead there and wasn’t able to hold it down. Then to see us come right back after that big inning and get a couple more, that stings a little bit to have a big inning like that and let them get all those runs across.”

Coming off a six-game road trip to Chicago and New York in which their bats sputtered, the Orioles had their chance to break through against Rangers left-hander Derek Holland early but stranded five baserunners, including three in scoring position.

On the night, the Orioles were 1 for 12 with runners in scoring position. As a team, the Orioles stranded 10.

They did, however, capitalize on a key error by first baseman Moreland that fueled a three-run fourth inning.

Orioles third baseman Manny Machado drove in the go-ahead run on a two-out single in the fourth, capping a three-hit night that gave him 122 on the season. Machado also recorded his 35th multihit game.

With Baltimore trailing 2-0 in the fourth, a walk to J.J. Hardy and a Nate McLouth double put two runners in scoring position to open the inning.

Brian Roberts then hit a grounder to the right side that Moreland backhanded, but his toss to Holland covering first was wild, allowing both runners to score and tie the game at 2 with no outs.

Three batters later, Machado hit a two-out single past Andrus at shortstop to score Roberts and give the Orioles a 3-2 lead.

— Baltimore Sun