PORTLAND, ME. — Duce Gourson played one of his best games in a Curve uniform on Thursday night, picking up three hits — including a grand slam — a walk and stole three bases in 10-3 win over the Portland Sea Dogs.

For the first time this season, Altoona got a leadoff home run in the top of the first inning. Keiner Delgado slammed the third pitch of the game from Sea Dogs righty Gage Ziehl into the bullpen in right-center field to take a 1-0 lead for the Curve.

Lefty Dominic Perachi made his second start for the Curve since his return from the injured list. Perachi lasted 3ª innings and left after surrendering a solo homer to Jack Winnay in the fourth. Perachi allowed five hits, walked just one and struck out two on 61 pitches, 36 for strikes.

After Altoona struggled to solve the Sea Dogs starter, the Curve broke out for six runs in the top of the sixth inning. Titus Dumitru knocked his team-leading 12th homer of the season to greet the new lefty reliever, Dalton Rogers.

After the Curve loaded the bases on a double, walk and a hit batsman. Delgado worked a bases loaded walk to take a 3-2 lead, and then Gourson hit Altoona’s fourth slam of the season to take a 7-2 lead.

Josh Loeschorn earned the win for the Curve with 2ª innings of one-run relief after Perachi. Landon Tomkins followed with 2ª scoreless innings in relief to close out the contest.

The Curve added three late runs in the ninth inning to put the game away. After Gourson drew his 53rd walk of the season, he stole second base to get into scoring position. He then stole third and scored on the same pitch that went to the backstop.

With the two stolen bases, Gourson is now fourth in the Eastern League with 26 on the season. Jesus Castillo later knocked an RBI double and Callan Moss an RBI single to round out the offense for the night.

Altoona continues its six-game series with the Sea Dogs, Double-A affiliate of the Boston Red Sox, on Friday at 6:20 p.m. The Curve will send RHP Peyton Stumbo to the mound with Portland starting RHP John Holobetz.