BALTIMORE -- Rather than getting giddy, Oakland Athletics manager Bob Melvin says his team has become "greedy.''

Oakland's 13-game winning streak ended Sunday as Austin Hays hit a pair of home runs, starter John Means had another stellar performance and the Baltimore Orioles beat the Athletics 8-1.

The A's, who opened the season with six straight losses, put together their third-longest winning streak since moving to Oakland in 1968.

"You do want to win the series but you also want to get greedy,'' Melvin said. "We've been greedy here recently. It's about winning every game that you go out there and play."

"At the end of the day, if you leave and you win a series, it's a good thing," he said. "But we wanted to win bad today. We just didn't do enough offensively to give ourselves a chance."

Oakland won 14 in a row in 1988 and a then-American League record of 20 consecutive wins in 2002. Cleveland broke that mark with 22 straight in 2017 -- the Athletics' recent string had been the longest in the majors since that run by the Indians.

Means (2-0) had an additional two days of rest heading into this start because manager Brandon Hyde wants to keep his pitchers fresh. The left-hander allowed just one run on two hits with six strikeouts over 6⅓ innings, lowering his ERA to 1.50 -- best among AL starters.

"I just feel very comfortable right now with my mentality and stuff,'' Means said. "I'm just going try to keep that going.''

Hays hit his first two homers of the season. Cedric Mullins had three hits, raising his average to .350 for Baltimore.

The Orioles broke open the game with five runs in the eighth that began with a solo home run by Maikel Franco and a bases-loaded walk by A's reliever Deolis Guerra to Ryan McKenna, who earned his first major league RBI. A bases-loaded error by shortstop Elvis Andrus gave the Orioles their sixth run before Trey Mancini delivered a two-run single.

"We're definitely a confident group and knew that if we kept playing our game and kept working to get better, things we're going to turn around,'' A's third baseman Matt Chapman said.

"We started putting together good at-bats. Once we get hot, we get rolling, I don't know if we could have predicted we were going to win 13 in a row like that, but who would have thought we would have lost six in a row to start the season. It all evened itself out and we're right where we need to be to make a run at this thing."

A's left-hander Jesus Luzardo (1-2) allowed three runs and seven hits with eight strikeouts and two walks over a season-high 6⅔ innings.

But he was outdueled by Means, who kept the A's off-balance for most of the day with his four-seam fastball, slider and changeup.

"I think this was a pretty solid outing," Luzardo said. "Obviously, we didn't get the win. It wasn't what we wanted. Hays got me twice. I am not happy that we lost. I feel like taking back a pitch or two, but other than that, I feel really good.''

Hays gave the Orioles the lead with a solo shot to center in the second. Ramon Laureano tied it at 1 in the fourth when he homered into Baltimore's bullpen.

Hays answered in the bottom half with an opposite-field, two-run homer that gave Baltimore a 3-1 lead. It was the second multihomer game of the 25-year-old's career.

"You hope that something like this kick-start the offense and really gets us going,'' Hays said. "Hopefully, we can carry what we did today into tomorrow against the Yankees.''