<p>BALTIMORE — Trey Mancini hit a go-ahead solo homer and later knocked in an insurance run, Jorge López and four relievers combined on a four-hitter and the Baltimore Orioles beat the Boston Red Sox 4-1 on Monday night.</p>
<p>The Orioles had dropped their first six games at Camden Yards this season against the Red Sox and avoided a four-game sweep. It was the first time the home team won in 10 games between the teams this season.</p>
<p>Boston still has the best record (22-14) and the best road record (12-5) in baseball. </p>
<p>Baltimore’s bullpen combined for 3 1/3 scoreless innings, retiring all 10 batters it faced. Tanner Scott (2-2) struck out his only hitter to complete the sixth, Travis Lakins Sr. and Paul Fry both completed perfect innings, and César Valdez worked the ninth for his eighth save.</p>
<p>Mancini put the Orioles ahead 2-1 with a blast to center off reliever Matt Andriese (1-2) to lead off the sixth. </p>
<p>REDS 14, PIRATES 1</p>
<p>PITTSBURGH — Tyler Naquin homered and drove in four runs, Tucker Barnhart keyed a six-run fourth inning with a two-run double and Cincinnati routed Pittsburgh.</p>
<p>Naquin’s three-run shot bounced off the right-field foul pole and made it 11-1 in the seventh. He also doubled home a run in the fourth.</p>
<p>Nick Senzel had a two-run single, Eugenio Suarez broke an 0-for-15 slump with a solo homer and Nick Castellanos added a two-run double for the Reds (16-16).</p>
<p>Tyler Mahle (2-1) allowed one run in 5 1/3 innings, striking out seven.</p>
<p>Mitch Keller (2-4) was tagged for seven runs and seven hits in 3 1/3 innings. His ERA is 7.81 after seven starts.</p>
<p>The skidding Pirates have dropped nine of 11 since moving one game over .500.</p>
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