MANCHESTER, N.H. — The New Hampshire Fisher Cats (18-27) used a five-run fourth inning to beat the Sea Dogs (17-29) 8-2 on Thursday night at Northeast Delta Dental Stadium in Eastern League baseball action.

Portland managed a split of the four-game set, and returns home tonight to host the New Britain Rock Cats.

Stolmy Pimentel (1-1) was roughed up for five runs in three-plus innings to suffer his first loss of the season.

In the fourth inning, the Fisher Cats sent 11 hitters to the plate against Pimentel and reliever Jeremy Kehrt. Brian Bocock led the offensive charge, going 2-for-3 with three RBIs, including a tworun double in the fourth. Kevin Howard, Brian Van Kirk and Mike McDade added RBIs in the fourth.

Yohan Pino (4-1) earned the win for New Hampshire, working seven innings on two runs and six hits. Fernando Hernandez closed it out with two scoreless innings.

Reynaldo Rodriguez continued his extra-base hit barrage, going 2-for-3 with a homer, a double and two RBIs for the Sea Dogs. Rodriguez clubbed his 10th homer of the season in the sixth inning, his ninth this month — a franchise record for May.

Will Latimer was a bright spot for the Portland staff, hurling three scoreless innings on two hits and three strikeouts.

First pitch tonight at Hadlock Field is scheduled for 7 p.m. Tickets are available for all remaining 2012 Sea Dogs’ home games. Call the Sea Dogs Ticket Office at 879-9500, or log on to www.seadogs.com