Ryu hasn’t allowed more than three earned runs in any of his 14 starts and he's allowed two earned runs in 11 2/3 innings over two starts against San Francisco this year.
In his final start of the season, Bumgarner needs a win or a no-decision to avoid his second consecutive losing season. He has a 1.34 ERA at AT&T Park, the second-best home ERA for a pitcher with 60+ home innings behind the Rays’ Blake Snell (1.25).