BALTIMORE -- Josh Reddick enjoyed a record-setting weekend at Camden Yards, his favorite ballpark in the world.
Unfortunately for him, the rest of the Oakland Athletics weren't nearly as successful.
Reddick hit his way into the club record book, but the A's yielded six home runs Sunday in an 11-3 loss to the Baltimore Orioles.
After collecting seven hits in Saturday's doubleheader, Reddick went 3 for 3 with a walk in the series finale. His run of eight straight hits, which is still alive, matches the franchise mark.
"Look at all the players that have played in this uniform - Hall of Famers that have been there," Reddick said. "To be up there on the top is a really great honor."
Reddick owns a .400 career batting average in 24 games at Camden Yards.
"Every time I come in here I feel like one of the best players on the planet," he said. "I think everybody has that one park they come to, and this is mine."
Reddick's RBI single in the first inning helped stake Oakland to a 3-0 lead, but it was wiped out by a barrage of long balls.
"They have power all the way up and down the lineup," A's manager Bob Melvin said. "You have to make quality pitches, especially in this ballpark, and we didn't do it today."
Manny Machado connected with a man on in the first inning and added his third career grand slam in the eighth. The six RBIs were a career high.
"It's a great day," Machado said. "I was able to go out there, put some great swings and hit some homers."
Machado, Pedro Alvarez, Jonathan Schoop and Mark Trumbo homered off Kendall Graveman (1-4). Joey Rickardadded a solo shot off Ryan Dull before Machado capped the surge against J.B. Wendelken, making his major league debut.
Trumbo finished a double short of the cycle. He singled in the first inning, hit a two-run shot in the third and was credited with a triple when his high fly to right was lost in the sun by Reddick.
Trumbo popped out in his final two at-bats. The last one came against Oakland catcher Josh Phegley, who retired two straight batters in the eighth after Melvin decided against using another pitcher.
"It brings a little levity to what was a tough game at that point in time," Melvin said.
Oakland lost the final two games of the series and has dropped six of seven overall to fall a season-high four games under .500 at 14-18.
Baltimore's Chris Tillman (4-1) gave up three first-inning runs before settling down to win his third straight start. The right-hander allowed six hits over 6 1/3 innings, striking out seven and walking four.
After Oakland jumped on top, Machado answered in the bottom half and Baltimore took the lead in the second inning on back-to-back drives by Alvarez and Schoop. The drive by Alvarez landed on Eutaw Street beyond the right-field wall and hit the B&O Warehouse on one hop.
"That was a big, old boy home run," Orioles manager Buck Showalter said.
Trumbo's ninth homer made it 6-3 in the third.
Graveman gave up six runs in 2 2/3 innings, including a career-high four homers. The right-hander is 0-3 with a 10.53 ERA in his last three starts.
The Athletics recalled Wendelken from Triple-A Nashville and optioned right-hander Jesse Hahn to Nashville. The move was made because the A's needed a fresh arm following Saturday's split doubleheader.
Athletics: RHP Henderson Alvarez (shoulder) probably won't be activated before completing his entire rehabilitative assignment. "We're not going to rush him," Melvin said. ... Oakland has had at least three players on the DL every day since July 30, 2011.
Orioles: RHP Yovani Gallardo (shoulder tendinitis) could begin throwing on the side during the next homestand, May 12-19, Showalter said.
Athletics: The A's continue their East Coast trek Monday night in Boston for the opener of a three-game series.Sonny Gray (3-3, 4.84 ERA) starts for Oakland.
Orioles: Tyler Wilson (1-1, 3.04 ERA) goes for Baltimore on Monday night in Minnesota, where the Orioles will play three games before returning to Camden Yards. Baltimore's 13 wins at home are the most in the majors.