Baltimore completed their three-game home sweep of Pittsburgh with a 12-6 win over the Pirates.
The two teams combined for 26 hits, 16 of them belonging to the winning Orioles, who closed to within 1/2 game of idle AL East leader, New York.
After that, the game was mostly Baltimore's. The Orioles had a 10-0 lead before the Pirates finally got on the board with three runs in the fifth.
The Orioles embark upon a weekend road trip to Atlanta while the Pirates, now tied with St. Louis, three games behind the NL Central-leading Reds, head to Cleveland.
With Pittsburgh dropping three straight, the Cincinnati Reds took full advantage, completing their sweep of the Indians with a 12-5 victory over Cleveland, Thursday.
After Cleveland scored two runs in the top of the first, Joey Votto erased their lead with a three-run blast in the bottom half, his 15th of the season.
Phillips broke the game wide open after that, socking a solo homer in the third - his 8th - singling in two runs in the fourth and singling in another as the Reds put up a 5-spot in the fifth.
The win put the Reds three games ahead of Pittsburgh and St. Louis in the Central division.
INTERLEAGUE SCOREBOARD: The National League finally cut a bit into the AL's interleague lead, winning six of ten games on Thursday, leaving the tally for the season at 68-58 in favore of the American League.