PORTLAND — After threatening to pull off their second walk-off victory in 18 hours, the Sea Dogs managed only to extend the first game of their scheduled doubleheader from seven innings to 11 before falling 6-3 to the Trenton Thunder Sunday afternoon at Hadlock Field.

The Sea Dogs overcame a two-run deficit by scoring in the sixth and seventh to force extra innings, then dodged a bullet (back-to-back doubles to lead off the ninth) before Trenton pushed across three runs in the 11th just as rain began to fall.

After a 25-minute delay, the game resumed and lasted only five minutes longer.

Raindrops arrived in the top of the 11th after Trenton loaded the bases with back-to-back singles, a sacrifice bunt and an intentional walk. Needing a double-play grounder, the Sea Dogs came close. Zoilo Almonte grounded sharply to Portland second baseman Ryan Dent, but the ball hopped up off Dent’s chest and he was only able to get Almonte at first, and just barely.

That made it 4-3, and David Adams followed with a two-run single that put the game out of reach.

First, however, came sheets of rain, a quick tarp application and the departure of most of the crowd. When play resumed after the passing shower, the Sea Dogs went quietly. Their only hit in the final four innings was an infield single by Jackie Bradley Jr.