BOWIE, Md. — The Portland Sea Dogs (74-45) led heading to the late innings, but the Bowie Baysox (58-60) tacked on six runs, on six hits, in the seventh inning and defeated the Dogs 6-3 Thursday night at Prince George’s Stadium. The loss brings the season series to an even .500 at 3-3 between the two squads in the six games.

Pete Ruiz was the first out of the bullpen for the Sea Dogs, after six scoreless from starter Justin Haley, and he was rudely greeted by the Bowie offense. David Freitas began the inning with a single, Mike Yastrzemski followed with a double and Niuman Romero put the home team on the board with an RBI-single to right.

Buck Britton kept the wheels moving and put the Baysox in front 3-2 with a two-run double to the wall in center. K.D. Kang walked and Ruiz’s night came to an end after five batters, who all reached.

Jeremy Kehrt was called upon to stop the bleeding, but he gave up a single to Sharlon Schoop which plated Britton and pushed the Dogs’ deficit to 4-2. Chris Marrero stepped to the plate with one out and chopped a single into left, both Kang and Schoop scored and Bowie had a 6-2 lead heading to the eighth.

Portland pulled to within three thanks to a Ryan Dent solo shot in the ninth, his first this season in Double-A, but could do no more damage.

Ruiz (2-1) took the loss as he did not record an out in the seventh. All five men he faced reached and scored. He gave up the runs on five hits and a walk. Kehrt mopped up and delivered two innings, but was tagged for a run on three hits; he tallied three strikeouts. Matt Bischoff (3-5) took home the win for Bowie, with two scoreless frames.

Runs again were at a premium between the Dogs and Baysox, but Portland jumped on the board and broke a scoreless tie with a pair against Nick Additon in the fourth inning.

Mike Miller began the inning with a single and Sean Coyle hit a ground ball to third base, which Buck Britton booted, allowing the runner to reach. Michael Almanzar followed and delivered a run-scoring single to left, and Dave Chester completed the inning with a sacrifice fly to right, scoring Coyle and upping the Portland lead to 2-0.

Haley took the mound for the Sea Dogs in his second Double-A start and came out strong. The righty weaved in and out of traffic through the first two innings, before retiring the side in order in the third. He continued to roll with the lead in the fourth and faced the minimum, courtesy of a caught stealing by Mike Brenly.

Haley returned for the fifth and gave up a one-out double to Glynn Davis. Yastrzemski and Romero each walked to fill the bases, but the starter got Britton to line out to center, ending the threat.

His outing came to an end after the sixth inning, but again not without a fight from the Baysox. Haley walked Kang and hit Ronald Bermudez to begin the inning. After a botched bunt attempt resulted in an out, Marrero struck out and Davis grounded out to end the inning, keeping it 2-0 Portland.

Haley finished six strong innings for the second straight game; he did not allow a run on three hits, five walks, a hit batter, and four strikeouts. Additon did not factor into the decision either, as he too went six innings, but gave up two runs, one earned, on six hits; he did not walk a batter and struck out four.

The Sea Dogs head south and get set to open up a three-game series against the Richmond Flying Squirrels tonight at 7:05 p.m. The Diamond in Richmond, Virginia. Portland is slated to start Eduardo Rodriguez in his second game with the Boston organization, and he will be up against Ryan Bradley of the Flying Squirrels.