Oakland has Yu Darvish's number and the A's also seem to be beating him at the mental part of the game.

The A's nailed down a 1-0 victory over Texas on Saturday - the second time this season Oakland has topped the Rangers and their All-Star starter Darvish by that score. The A's who have won four in a row and 12 of their past 15 upped their lead in the AL West to 5 1/2 games over Texas. They're a season-high 26 games over .500 and have the third-best record in the majors at 87-61.

They've also defeated Darvish four times this season and six times total in his seven career starts against them. And in the sixth inning Saturday Darvish engaged in some gamesmanship with A's MVP candidate Josh Donaldson yelling "fastball" at Donaldson before throwing him a curveball. Donaldson singled on the pitch but Darvish's actions were construed as taunting by many of the A's including Coco Crisp who let Darvish have it from the dugout until Daric Barton restrained him and carried him off the top step.

Donaldson was unfazed by Darvish's actions though. "If he wants to do that fine it doesn't bother me" Donaldson told The Chronicle. "I kind of like the head games."

Earlier this season Donaldson and Darvish had exchanged words over Donaldson's contention that Darvish doesn't challenge him with fastballs; on Saturday Darvish glared at Donaldson after his single then made a shushing gesture toward the A's dugout when Crisp began barking at him. Crisp declined to comment on Darvish's antics or his own response to them.

"It was part of the game where there was a lot of excitement between both of us" Darvish said. "I heard a lot of people saying something from the Oakland dugout. I said to myself 'It's just the heat of the moment with what's at stake.' I looked at it as like they were trying to make me lose my concentration. But I just understand that. So I worked to maintain my focus and pitch my game."

The A's own All-Star starter Bartolo Colon looked the best he's been since before the break consistently hitting 95 and 96 mph. He went eight innings and allowed seven hits and one walk.