For the first time since May 26, the Red Sox don't sit atop the American League East.
Their 60-day reign came to an end Friday after Boston fell to the Orioles, 6-0, and the Rays, who began the day a half-game back, topped the Yankees, 10-6.
The Orioles are firmly in the hunt for the division crown as well, sitting just 3 1/2 games behind the Rays.
The O's hope to gain more ground with the second-place Red Sox in town over the next two days, sending Scott Feldman to the mound Saturday night to face Ryan Dempster.
Despite Boston's success against most of the league, the Orioles seem to have the Red Sox's number. Baltimore has won six of eight meetings this season and is 19-7 against Boston dating back to last year.
"This is a team that I think, over the last couple of years, has kind of had its way with us," said Red Sox manager John Farrell. "We need to play better and find ways to win games more regularly than maybe we have and this is a team that plays a very sound style of game. They're built around power offensively. Very good defensive team. Their bullpen has been outstanding and with the addition of [Francisco] Rodriguez, strengthens it even further."
Boston has scored more runs than any team in the Majors, but is going through a bit of a slump recently. After totaling just four hits and being shut out Friday, the Sox have scored seven runs over their last four games.
Feldman will try to keep Boston in check as he's slated to make his fifth start since coming over from the Cubs.
Along with Wei-Yin Chen, Feldman has helped solidify the rotation and was stellar in his last outing, giving up two runs and five hits over eight innings in a win against the Royals.
Dempster hasn't been as effective lately, as he was unable to record a quality start in each of his previous two outings.
He surrendered three runs over 5 1/3 innings in his last outing against the Yankees and has a 5.40 ERA in his last three starts.
Red Sox: Iglesias slumping
• Red Sox infielder Jose Iglesias was batting .415 to start July, but after going 0-for-3 on Friday, his average has dipped down to .338.
He has just 13 hits in his last 69 at-bats, but Farrell has continued to show confidence in the young infielder, starting him 32 straight games.
Despite the slump, Iglesias is confident he'll find his stroke again soon.
"Like I say, I'll continue to work and continue to get better and get back on track where I was," he said. "If I don't do it with the bat, I'll do it defensively or baserunning. Anything I can do. You always do something to help this team win."
Orioles: Jones' power surge leads Orioles
• Adam Jones blasted two home runs off Boston starter John Lackey during the Orioles' 6-0 win Friday, continuing a hot stretch for the All-Star center fielder over the past couple of weeks.
Jones has six home runs since July 12 and seven in the month, matching the most he's had in any month this season. Overall, the slugger has 22 long balls on the season to go along with 74 RBIs and a .294 batting average.
The Orioles belted four home runs against the Red Sox on Friday. They lead the Majors with 141.
• The Red Sox are 3-4 since All-Star break, with all seven games coming against AL East opponents. They are 26-19 against the AL East.
• The Orioles have homered in 11 straight games against Boston dating back to Sept. 28, 2012.
Michael Periatt is an associate reporter for MLB.com. Follow him on Twitter @Michael Periatt. This story was not subject to the approval of Major League Baseball or its clubs.