BALTIMORE -- Orioles first baseman Chris Davis' walk-off RBI single off Robbie Ross Jr. in the bottom of the 13th inning gave Baltimore a 6-5 win over Boston in a marathon four-hour-plus game Tuesday night.
After Gerardo Parra drew a leadoff walk, Manny Machado singled off Red Sox reliever Jonathan Aro and Davis lined a ball into right field to seal the victory and give Baltimore its sixth win in its last seven games.
"Don't strike out, that's what I told myself," Davis joked. "No, I was just looking for a pitch over the plate to get it in the infield or through the infield. A lot of times in those situations you get caught trying to do too much, I was trying to not do too much. Even though the first swing I took I almost fell down, it kind of set me up for the next swing."
The two teams swapped solo shots, with Machado going deep in the bottom of the fifth inning and Travis Shaw going yard off O's lefty Brian Matusz in the top of the eighth.
Baltimore used a four-run third inning, which saw red-hot Boston starter Joe Kelly exit with an injury, to take the early lead. The frame was highlighted by Steve Pearce's two-run homer. Boston answered, plating three runs off O's starter Ubaldo Jimenez in his fifth -- and final -- frame, including Pablo Sandoval's ball off the left-field wall. Sandoval, who was tagged out on an overturned call at second base, drove in Xander Bogaerts to tie the game at 4 apiece.
"It was a great effort by the bullpen," said Red Sox interim manager Torey Lovullo. "One after another, they stepped up and did their job."
MOMENTS THAT MATTERED Kelly leaves with injury: As Kelly gave up four runs in the bottom of the third, it was clear that his stuff was greatly diminished from what it had been the last few weeks. Kelly left the game with tightness and fatigue in his right shoulder and will undergo further evaluation. Kelly had won all eight of his starts between Aug. 1 and Sept. 9. More >
"I don't think it's that big of a deal, honestly. I just think it's something I've just been feeling lately," said Kelly. "It's just a little tight. That's about it, I guess."
Machado shines: After watching Boston tie it, Machado immediately put Baltimore back in front with his 29th blast of the season. The third baseman also made a pair of fantastic plays to help Jimenez stay in the game early on and had a key hit in the 13th. More >
"He's been really good, I feel like, this whole year," Davis said of Machado, who is coming off consecutive season-ending knee surgeries. "He made a couple of plays the other night [at third base] that I just shook my head at. It seems like some of the plays he makes are so effortless to him; they're such great plays. I feel like he's been swinging the bat well all year."
Shaw again shows power: Shaw continues to give the Red Sox something to think about as they evaluate for next season. The lefty's game-tying homer homer to right-center against Matusz was his 11th homer this season, and all of them have come since Aug. 1. Interestingly, six of Shaw's homers have come against lefties. According to Statcast™, Shaw's equalizer traveled a projected distance at 413 feet with an exit velocity of 113 mph.
"You get a little crispness back in the air, and it reminds everybody what fall baseball is like. We still feel like [the postseason] it's there for us if we can get the momentum needed. It starts with good pitching, which we had tonight with the exception of that one inning." -- Buck Showalter, on the Orioles' chances down the stretch to still make a playoff run
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Of Shaw's 42 hits this season, 19 have been for extra bases.
The Orioles challenged whether Sanodval, who hit a ball off the left-field wall, was safe sliding into second base and the fifth-inning call was overturned. Second baseman Jonathan Schoop did an excellent job of keeping the tag on Sandoval, who slid headfirst and lost contact with the bag for a second.
"That got us out of that inning," Showalter said of the play. "[Jimenez] would have probably continued if we hadn't taken the lead. That's a new part of baseball now that we have replay, staying with the play and the guy's momentum."
WHAT'S NEXT Red Sox: Rookie lefty Henry Owens draws the start in the finale of this three-game series on Wednesday at 7:05 p.m. ET. Owens took a tough-luck loss to the Blue Jays last time out, giving up three hits and a run over 5 1/3 innings. This is his first career start at Camden Yards.
Orioles: Rookie starter Mike Wright will take the mound for Baltimore in Wednesday's series finale. Wright took a no-decision on Friday, allowing four runs over five innings in the Orioles' win.