PORTLAND — The Trenton Thunder hit four home runs, and their pitching staff recorded 14 strikeouts to take the Eastern League season opener from the Portland Sea Dogs, 13-5 on Thursday night at Hadlock Field.

Shortstop Stephen Drew went 0-for-3 with an RBI in a rehab assignment for the Sea Dogs. Portland committed five errors, leading to eight unearned runs.

Kyle Roller knocked in the game’s first runs, launching a three-run home run in the first inning off losing pitcher Drake Britton. The lefty lasted three innings, yielding five hits on seven runs (three earned), two walks and five strikeouts. In addition to Roller’s homer, Britton surrendered a three-run homer to J.R. Murphy and Rob Segudin — both coming in the third inning.

Trenton’s bullpen worked 6.1 hitless innings on one walk and fanned 11. Danny Burawa (1- 0) earned the win, retiring all four batters faced, three on strikeouts. Shaeffer Hall, Kelvin Perez and Brandon Pinder closed out the win for the visitors.

Portland took a 4-3 lead in the second inning on Heiker Meneses’ three-run homer to center field, the ’Dogs final hit of the game. Shannon Wilkerson went 1-for-4 with a double and scored from second base on a run-scoring groundball by Drew.

Keith Couch worked three strong innings of relief for the Sea Dogs in his Double-A debut. The righty allowed two unearned runs on one hit and fanned four. Daniel Bard made his first Double-A appearance since 2008 and gave up a two-run homer to Neil Medchil.

Trenton added two unearned runs off Will Latimer in the eighth inning.

Thursday’s game marked the 20th season of Sea Dogs baseball Portland. Before the game, longtime public address announcer Dean Rogers, who retired after 19 seasons, threw out the first pitch.

The series continues tonight at 6 p.m. The Sea Dogs send right-handed pitcher Brandon Workman to the mound, with Trenton countering with righty Zach Nuding.

Tickets are available online at www.seadogs.com or by calling 879-9500.