It's about a 10-minute drive from Portland's Hadlock Field to the nearest Sam's Club, but Binghamton's offense didn't need a membership card to buy in bulk this weekend.

For the second straight game, the B-Mets won behind a big inning. The Mets' Double-A affiliate scored six times in the fourth on Sunday and held on for an 8-5 win over the Sea Dogs to punch its ticket to the Eastern League Finals.

After winning the decisive fifth game of the Eastern Division Finals, Binghamton will face Richmond in the best-of-5 Championship Series, beginning Tuesday at Richmond.

On Saturday, the Mets rolled to an 11-4 Game 4 victory behind a seven-run sixth. One day later, they scored in bulk again, piling up six runs in the fourth to build a commanding 8-1 lead.

Three of those runs came on a bases-loaded double by Darrell Ceciliani, who provided a key two-run double in Saturday's big inning.

"I was just trying to slow the game down," Ceciliani said. "They have to come to me. They're the ones in trouble with the bases loaded."

The 24-year-old outfielder went 7-for-18 with seven RBIs in the five-game series, totaling four hits and six RBIs in the final two contests. He's in his second full season with the B-Mets, hitting .289 with seven homers, 54 RBIs and 16 stolen bases this year.

While Ceciliani provided the punch, Mets No. 3 prospect and leadoff man Brandon Nimmo was the spark. He closed the series with back-to-back three-hit games and combined for five runs.

The 21-year-old outfielder was 3-for-5 with two runs scored on Sunday and finished the series with a .364 average (8-for-22).

"I think he's kind of doing the same thing he's done all year," Ceciliani said. "He has a great eye at the plate. He swings at good pitches. He's been hitting the ball well all year. Right now, nothing's changed. He's just finding more green grass instead of hitting balls hard at people."

After winning the series opener, Binghamton dropped the next two games by a combined score of 13-3. Manager Pedro Lopez called a team meeting after Game 3 and the Mets rolled in the final two games to advance.

"It was a great feeling in the locker room," Ceciliani said about the celebration. "It was a grind. We battled. It was five games, a dogfight, back and forth. It was an exciting series and a great series. We're fortunate to come out on top."

B-Mets starter Gabriel Ynoa (1-0) struck out eight over 5 2/3 innings but gave up five runs on nine hits and a walk. Cody Satterwhite gave up a hit and fanned two in the ninth for the save.

Rusney Castillo, Jonathan Roof and Heiker Meneses each had two hits and an RBI for the Sea Dogs, who set a franchise record with 88 wins during the regular season. Portland starter Luis Diaz (0-1) was roughed up for seven runs on eight hits in 3 2/3 frames.