I'm playing on SF (3* PERS FAV). Off a win over the Cards, Bumgarner already has a stingy 2.05 ERA and 0.987 WHIP in four home starts. During that span, he's got 25 K's against just six walks. I mention the walks as they can be an issue for Jackson. He allowed four free passes in 5 2/3 innings last time out, striking out just three. In his last three starts vs. the Giants, he's walked 12 batters in 18 1/3 innings. While the Giants had yesterday off, they A's had to fly out of Houston, after upsetting the Astros during the afternoon. With the A's at 49-68 (-15.3) vs. southpaws the past 2+ seasons, expect the Giants to improve to 31-17 (+12.2) here at home.