By The Associated Press

BOSTON - Rodrigo Lopez had his best game as a starter and B.J. Surhoff had four of Baltimore's 16 hits, including a 310-foot homer that helped the Orioles beat the Boston Red Sox 13-4 Monday.

Lopez (4-2) struck out seven in 5 1-3 innings, allowing one run and four hits in his third start since being promoted from the bullpen May 20.

Melvin Mora had four RBIs and three hits, including a homer, and Brian Roberts three hits, including a bases-clearing double in the seven-run sixth inning. Baltimore has 13 or more hits in six straight games.

Derek Lowe (4-5) allowed seven runs, eight hits and four walks in five-plus innings. Boston dropped into second place in the AL East, percentage points behind the New York Yankees.

Tigers 8, Royals 4

DETROIT - Eric Munson and Carlos Guillen hit two homers each, the first multihomer games of their careers.

Omar Infante also homered for Detroit, which had its first five-homer at Comerica Park, Guillen's second homer came on a line drive that skipped past center fielder Carlos Beltran and became the third inside-the-park homer in the ballpark's five-year history.

Dmitri Young, playing his first game since breaking his right leg April 6 in the season's second game, went 1-for-3 with a double and a walk. Carlos Pena had a two-run triple for Detroit, which had 14 hits.

Gary Knotts (2-1) allowed three runs and in 6 1-3 innings as Detroit stopped a three-game losing streak and won for only the second time in eight games.

Darrell May (2-7) fell to 1-3 in his last four starts, giving up five runs and eight hits in five innings.

Devil Rays 7, Twins 3

MINNEAPOLIS - Fred McGriff, making his second start for the Devil Rays since he was brought up from the minor leagues Friday, homered for the first time since last Sept. 2. The two-run drive off Seth Greisinger (2-4), the 492nd of McGriff's career, landed in the first row of the upper deck in right field and gave the Devil Rays a 2-0 lead.

Tampa Bay, just 4-17 on the road this season, had lost seven straight games at the Metrodome since Aug. 19, 2001.

Rob Bell (1-2) allowed two runs and three hits in seven innings to win for the first time in four starts since beating Toronto last Sept. 22. Minnesota has lost eight of 11.