Mitch Moreland hit a three-run home run, Rafael Devers and Andrew Benintendi each added a solo homer, and the Boston Red Sox moved above .500 for the first time this season with a 14-1 victory over the Seattle Mariners on Friday night.

Boston (20-19) has won nine of 11, scoring 80 runs during the stretch. Seattle (20-21) lost for the 10th time in 12 games and is under .500 for the first time since the end of the 2017 season.

Eduardo Rodriguez (4-2) pitched seven scoreless innings, allowing five hits and striking out five to pick up his third win in four starts. It was the first time Rodriguez lasted seven innings in a start since Sept. 23, 2017, at Cincinnati.

Boston Red Sox's Eduardo Rodriguez pitches during the first inning of the team's baseball game against the Seattle Mariners in Boston, Friday, May 10, 2019. (AP Photo/Michael Dwyer)
Boston Red Sox’s Eduardo Rodriguez pitches during the first inning of the team’s baseball game against the Seattle Mariners in Boston, Friday, May 10, 2019. (AP Photo/Michael Dwyer)

Rookie Erik Swanson (1-4) took the loss, allowing seven hits and seven runs over 4 2/3 innings.

It marked the latest rough outing for a Mariners’ pitching staff that has given up 11 or more runs four times in 12 games.

The Red Sox did the brunt of their damage in the third inning.

Boston Red Sox's Andrew Benintendi, right, scores on a double by Mitch Moreland as Seattle Mariners' Tom Murphy gets the throw during the fifth inning of a baseball game in Boston, Friday, May 10, 2019. (AP Photo/Michael Dwyer)
Boston Red Sox’s Andrew Benintendi, right, scores on a double by Mitch Moreland as Seattle Mariners’ Tom Murphy gets the throw during the fifth inning of a baseball game in Boston, Friday, May 10, 2019. (AP Photo/Michael Dwyer)

Jackie Bradley Jr. led off with a double down the left field line and scored on Mookie Betts’ two-out single up the middle.

J.D. Martinez moved Betts over to third base with a single, and Moreland cleared the bases with his looping blast that landed just over Boston’s bullpen in center. It was Moreland’s 11th home run of the season.

Devers led off the fourth inning with a line-drive homer over the Mariners’ bullpen in right field.

Boston Red Sox's Mitch Moreland, right, crosses home plate on his three-run home run in front of Seattle Mariners' Tom Murphy during the third inning of a baseball game in Boston, Friday, May 10, 2019. (AP Photo/Michael Dwyer)
Boston Red Sox’s Mitch Moreland, right, crosses home plate on his three-run home run in front of Seattle Mariners’ Tom Murphy during the third inning of a baseball game in Boston, Friday, May 10, 2019. (AP Photo/Michael Dwyer)

Moreland added an RBI double in the fifth.

Boston scored in all but two innings.

TRAINER’S ROOM

Seattle Mariners' Mitch Haniger (17) watches a three-run home run by Boston Red Sox's Mitch Moreland during the third inning of a baseball game in Boston, Friday, May 10, 2019. (AP Photo/Michael Dwyer)
Seattle Mariners’ Mitch Haniger (17) watches a three-run home run by Boston Red Sox’s Mitch Moreland during the third inning of a baseball game in Boston, Friday, May 10, 2019. (AP Photo/Michael Dwyer)

Mariners: Placed IF Dylan Moore on the 10-day injured list with a right wrist bruise. Moore was injured after being hit by a pitch Wednesday against the Yankees. … Scans on the right wrist of 2B Dee Gordon revealed no fractures. He is day-to-day. He was forced to leave Seattle’s game against the Yankees on Thursday after getting hit by a pitch from J.A. Happ.

Red Sox: Manager Alex Cora said left-hander David Price (left elbow tendinitis) continues to throw, “feels a lot better” and “seems like he’s in a good place.” The plan is for him to get in a few bullpen sessions before a decision is made on his next step. … Cora said he texted with 2B Dustin Pedroia (left knee irritation), who is travelling with Double-A Portland. Cora said next for Pedroia is to see how he reacts to playing three straight games. … Utility man Brock Holt (scratched cornea) was with the team Friday and could soon begin a rehab assignment.

‘BACK TO BASEBALL’

Boston Red Sox's Rafael Devers rounds first base on his solo home run during the fourth inning of the team's baseball game against the Seattle Mariners in Boston, Friday, May 10, 2019. (AP Photo/Michael Dwyer)
Boston Red Sox’s Rafael Devers rounds first base on his solo home run during the fourth inning of the team’s baseball game against the Seattle Mariners in Boston, Friday, May 10, 2019. (AP Photo/Michael Dwyer)

Cora said there was no uneasiness in the clubhouse a day after several members of the team decided not to attend a celebration at the White House for Boston’s World Series championship.

“That’s the route we decided, and we respect everything and we’re fine with it. Back to baseball today,” Cora said. “In my world, I decided not to go for my reasons. I know the government has helped. We still have a long way to go. That’s our reality.”

UP NEXT

Boston Red Sox's Rafael Devers, right, celebrates his solo home with Michael Chavis (23) during the fourth inning of the team's baseball game against the Seattle Mariners in Boston, Friday, May 10, 2019. (AP Photo/Michael Dwyer)
Boston Red Sox’s Rafael Devers, right, celebrates his solo home with Michael Chavis (23) during the fourth inning of the team’s baseball game against the Seattle Mariners in Boston, Friday, May 10, 2019. (AP Photo/Michael Dwyer)

Mariners: Félix Hernández (1-3, 5.20 ERA) gets the ball for Saturday’s matchup with Boston. He is coming off a start against the Yankees on May 6 in which he allowed three home runs in seven batters.

Red Sox. Rick Porcello (2-3, 5.11 ERA) is 2-0 with a 2.45 ERA in his last four starts. He has held opponents to a .202 batting average with 25 strikeouts during that stretch.

___

Seattle Mariners' Domingo Santana makes the catch for the out on a fly ball by Boston Red Sox's Andrew Benintendi during the first inning of a baseball game in Boston, Friday, May 10, 2019. (AP Photo/Michael Dwyer)
Seattle Mariners’ Domingo Santana makes the catch for the out on a fly ball by Boston Red Sox’s Andrew Benintendi during the first inning of a baseball game in Boston, Friday, May 10, 2019. (AP Photo/Michael Dwyer)
Seattle Mariners' Erik Swanson watches a pitch during the first inning of the team's baseball game against the Boston Red Sox in Boston, Friday, May 10, 2019. (AP Photo/Michael Dwyer)
Seattle Mariners’ Erik Swanson watches a pitch during the first inning of the team’s baseball game against the Boston Red Sox in Boston, Friday, May 10, 2019. (AP Photo/Michael Dwyer)
Seattle Mariners' Tom Murphy (2) returns to the dugout as Boston Red Sox's Eduardo Rodriguez walks off the mound after the top of the seventh inning of a baseball game in Boston, Friday, May 10, 2019. (AP Photo/Michael Dwyer)
Seattle Mariners’ Tom Murphy (2) returns to the dugout as Boston Red Sox’s Eduardo Rodriguez walks off the mound after the top of the seventh inning of a baseball game in Boston, Friday, May 10, 2019. (AP Photo/Michael Dwyer)

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