PORTLAND — The Portland Sea Dogs (29-40) scored a season-high 14 runs in a 14-0 Eastern League baseball victory over the Harrisburg Senators on Tuesday night at Hadlock Field.

The Sea Dogs exploded for nine runs in the fourth inning, and Chris Hernandez tossed seven shutout innings leading the Sea Dogs in the opener of a three-game series.

Hernandez (4-6) fired seven shutout innings, holding the Senators to five hits. He walked two and struck out three. He lowered his teamleading earned-run average to 2.64, tossing 91 pitches, 58 for strikes.

Ryan Dent (3-for-5, two runs, two RBIs) got the night started with a two-run single in the second inning to give the Sea Dogs a quick 2-0 lead.

The first 10 batters in the fourth inning reached base safely, with the first nine each scoring as the Sea Dogs sent 14 men to the plate for an 11-0 lead. Derrick Gibson drove in two runs with a single, and Oscar Tejeda ripped a grand slam. Juan Carlos Linares tripled, while Bryce Brentz doubled to highlight the big inning.

Jeremy Hazelbaker was 2- for-4 for Portland with a home run, a two-run shot.

Chorye Spoone and Chris Balcom-Miller each tossed a scoreless inning in relief of Hernandez.

The two teams will play game two of the series tonight at 7 p.m. Lefty Drake Britton (1- 0, 1.10) will get the start for the Sea Dogs. The Senators will send righty Kevin Pucetas (4-2, 1.63) to the mound.