Gentry put the Rangers ahead to stay with a two-out infield hit that produced two runs, his second RBI infield single in as many nights, and later added a two-run homer in a 5-1 victory over the Boston Red Sox on Saturday night.
The Rangers had the bases loaded with two outs in the fourth when Gentry hit a hard chopper. Third baseman Will Middlebrooks fielded the ball cleanly and made a strong throw that was a bit wide of first base, though Gentry clearly beat it. A second run scored on the throwing error when the ball got away from first baseman Mike Napoli for a 3-1 lead.
"Speed kills," manager Ron Washington said.
"That's not how you draw it up, but any way we can push some runs across," Gentry said. "I always run hard and run it out, just in case. That's my game. If I can beat something out, I'm going to try."
Alexi Ogando (3-2) pitched into the seventh inning for his first victory in five starts and the AL West-leading Rangers (19-11) clinched the series against the Red Sox (20-10), who still have the best record in the majors even after losing the first two games.
Ogando struck out four and allowed one run in six-plus innings. The right-hander, who won his first two starts of the season before going 0-2 the last four, was gone after allowing a leadoff single to Middlebrooks in the seventh.
Lackey made his second start since coming off the disabled list because of a right biceps strain and winning in his return last Sunday. He hasn't won consecutive starts since 2011, and has had plenty of struggles against the Rangers -- a 6.01 ERA in his 37 career starts against Texas, the most by any active pitcher.
"I've pretty much done everything in this place," Lackey said. "I've pitched good here. I've been terrible here. And everything in between."
The big right-hander, a Texas native, allowed three runs and six hits over five innings. He struck out four and walked three.
Gentry's homer in the eight, his first of the season, came off former Rangers reliever Koji Uehara.
"Uehara got one up there and Gentry let loose," Washington said. "Caught it on the fat part of his bat and drove it out of the ballpark. Certainly a big hit, gave us some insurance."
On Kinsler's leadoff homer, left fielder Daniel Nava was a long way in front of the 14-foot wall when he stopped, held his hands out and seemed totally confused while looking up for the ball. It landed several rows deep in the stands, an estimated 402 feet from home plate.
"I knew I got that one," said Kinsler, who extended his club record with his 28th career leadoff homer. "He actually made me think my bat was hollow for a second. ... He looked like he was camped. For a millisecond there, he kind of got me."
David Ortiz had a leadoff double in the second for the Red Sox, extending his majors-best hitting streak to 24 games, dating back to last season. He scored on a single by Nava to tie the game at 1.
Ortiz has hit in all 12 games he has played in this season since being activated from the disabled list, with an extra-base hit in 10 of his last 11 games.
Texas loaded the bases in the fourth on two walks and a single by A.J. Pierzynski. Then came Gentry's infield hit, similar to one the night before in a 7-0 victory, though Middlebrooks played it about as well as he could.
"A guy with speed like that, I need to go get that," Middlebrooks said. "But at the same time, it's going to be an in-between hop so I wanted to at least give myself a chance. I tried to get rid of it as quick as I could. Made a bad throw."
Rangers closer Joe Nathan, the third Texas reliever, worked a perfect ninth in his first appearance in eight days. .... The Red Sox had won their first four road series this season. ... Yu Darvish (5-1) starts the series finale for Texas, against left-hander Jon Lester (4-0). ... Kinsler's homer extended his hitting streak to 10 games, second-longest in the AL -- to Ortiz. ... Red Sox RHP Craig Breslow threw a nine-pitch perfect inning for Triple-A Pawtucket on Saturday and could be activated during a seven-game homestand that starts Monday. Breslow has been on the disabled list with left shoulder tendinitis since March 31.