BOSTON –– Boston and Seattle waged a see-saw battle into 11 innings Friday night at Fenway Park, and when the dust settled, it was the Mariners who found themselves on top, 7-6, after reliever Ramon Ramirez couldn’t hold back Seattle’s bats.

Entering the 11th with the score tied 5-5, Ramirez quickly gave up a single up the middle, and then issued a four-pitch walk to Ryan Langerhans. Catcher Rob Johnson made him pay with his third double of the night, lancing a high 0-2 changeup into the right field corner, the ball caroming around as Langerhans and Franklin Gutierrez rounded the bases to give Seattle the 7-5 lead.

“Was trying to throw a pitch down, but my change-up was up, and he hit it, you know?” Ramirez said.

Ramirez’ woes overshadowed another big hit from Nick Green, the fill-in shortstop who has made clutch performances a part of his regular routine.

Green doubled off the Green Monster in the eighth inning to drive home Jason Bay and Mark Kotsay, bringing the Sox back from the brink of a loss and tying the game at 5-5.

It was the most offense the Sox had mounted since early in the game. Over seven innings, Mariners ace Felix Hernandez bent but didn’t break, holding Boston to three runs and leaving after seven innings with a 5-3 advantage.

“With him, you’ve got to get his pitch count up and try to knock him out as soon as possible, and it didn’t happen tonight,” Green said.

The moment he was gone, Sox hitters capitalized, rallying back against inferior replacements Sean White and Shawn Kelly.

All that offense was needed to bail out starter Tim Wakefield, who didn’t do much to burnish his All-Star credentials. Wakefield gave up five runs over eight innings in his 383rd start for the Red Sox, a new team record. Wakefield pitched effectively for most of the game, but left several mistake pitches up in the zone, and it cost him.

“Every time Wake was up with his pitches tonight, they jumped on it,” manager Terry Francona said. “When he left it up, the air is starting to get light here, and they hit him. He didn’t walk anybody — he gave us a chance. Just, when the ball was up, they hit it.”

At the start, it looked like Wakefield would cruise to his 11th win of the season. The Sox jumped out to an early lead in the first, stringing together hits and walks to gain a 2-0 edge. Jason Bay snapped a 0-for-17 slump with a ground-rule double into the corner, bringing home Dustin Pedroia with the game’s first run. David Ortiz then came home from third on a wild pitch with Mark Kotsay batting.

The Mariners chipped away at that advantage, and then erased it with a two-out rally in the fourth inning off Tim Wakefield. Seattle’s Ryan Langerhans got things started with a double — moments after getting a perhaps-undeserved second chance. In the middle of his at-bat, Langerhans popped up a foul ball near the  third-base dugout, and catcher George Kottaras and third baseman Kevin Youkilis converged on the ball. Youkilis looked like he had a shot at it — but a fan grabbed the ball away before Youkilis could reach it. Langerhans doubled immediately after to get the Mariners rolling, prompting the Fenway faithful to serenade the fan with chants of “all your fault.”

“I thought he had a pretty good chance to do it, it was only one row back, but I guess he got blocked out by the fan,” Kottaras said. “Little things like that can change the whole game. It happens — it’s happened in the past to other people, and it happened to us tonight.”

With Langerhans on second, the Mariners took advantage of the opening and piled on. After a fly out, Johnson doubled to bring home Langerhans, and then Ronny Cedeno drove a ball over the centerfield wall for a two-run homer and a 4-2 Seattle lead.

Seattle widened the lead in the eighth when Wakefield gave up a home run to Jose Lopez to lead off the inning. Wakefield was still kicking himself after the game about the home run ball, which gave Seattle a 5-3 lead.

“They hit some really good ones and sometimes you can’t do anything about that, but the last homerun I gave up was just a bad pitch that stayed up.

Kottaras hit his first major league home run in the 11th inning, a solo shot to right field that narrowed the gap to 7-6.