Baltimore
Betts hit a three-run drive in the fifth inning and added a tiebreaking two-run shot in the seventh. He’s batting .426 with 12 homers and 18 RBIs in 11 games against the Orioles this season.
Betts had three homers and eight RBIs in a 16-2 win over Arizona on Sunday.
The victory lifted Boston into a tie with Baltimore in the AL East. The Orioles started the day atop the division by .001 over Toronto, which played a late game against the Yankees.
The Red Sox were in first place on July 21, then lost 13 of 20 before winning five in a row.
Boston starter Eduardo Rodriguez had a no-hitter before leaving in the fifth inning with left hamstring tightness. Matt Barnes kept the Orioles hitless until Steve Pearce reached on a dribbler that got past the mound with one out in the seventh.
Baltimore ended up batting around and tying the game at 3. After Matt Wieters hit a two-run single, Brad Ziegler (1-3) walked Adam Jones with the bases loaded before striking out Jonathan Schoop.
The deadlock didn’t last long. David Ortiz led off the eighth with a single off Brad Brach (7-2) and Betts lined an 0-1 pitch into the front row of seats beyond the left-field wall.
Craig Kimbrel, the sixth Boston pitcher, worked a perfect ninth.
Rodriguez and Yovani Gallardo were locked in a scoreless duel until the fifth. After Andrew Benintendi hit a leadoff double and Xander Bogaerts drew a one-out walk, Gallardo struck out Ortiz with a 2-2 fastball. Betts hit the next pitch over the left-field wall.
Betts has 28 home runs and 87 RBIs.
Red Sox 3B Aaron Hill was scratched shortly before game time with right forearm tightness. … RHP Steven Wright (right shoulder strain) will come off the DL next Tuesday, manager John Farrell said. … There is no timetable for RHP Koji Uehara (right pectoral strain) to throw off a mound, but he “is doing better than anticipated,” Farrell said.