PORTLAND — The Portland Sea Dogs (2-3) had their remarkable and historic season come to an end with an 8-5 loss to the Binghamton Mets (3-2) in the decisive fifth game of the Eastern League’s Eastern Division Championship series on Sunday at Hadlock Field.

The win sends the Mets to the Eastern League best-offive championship series against the Richmond Flying Squirrels, which will begin Tuesday.

The scoring started early for Binghamton with two runs in the first against Portland starter Luis Diaz. Brandon Nimmo sparked the frame with a lead-off double and scored two batters later on Brian Burgamy’s double to left center, giving the Mets the 1- 0 lead. Darrell Ceciliani followed with a two-out walk and Travis Taijeron capped off the inning with an RBI single.

Portland struck right back against Mets starter Gabriel Ynoa. Rusney Castillo had an opposite field double to right-center field and scored from third on a single by David Chester with two down, making it 2-1.

After a pair of scoreless frames, Binghamton upped the lead to 4-1 in the fourth, with Wilfredo Tovar singling in a run. Tovar later scored on an error.

Diaz hit a batter to load the bases, and relief pitcher Dayan Diaz allowed a basesclearing double to Ceciliani for a 7-1 Mets lead, and Taijeron singled in Ceciliani to conclude the six-run Binghamton uprising.

Portland scored one run in both the fourth and fifth innings, and two more in the sixth to close to 8-5, but the Binghamton bullpen shut the Sea Dogs the rest of the way to conclude the series.