Despite winning just three of 12 games against the rival Giants, the Dodgers are 27-19 (.587) against their own division this year, including 7-2 against Arizona, riding a seven-game winning streak against the D-backs.
San Francisco, fueled by its 9-3 record against the Dodgers, is just 22-22 against the NL West.
The Dodgers are one of only four teams with a winning record within their own division this season:
Mike Bolsinger gets the start for the Dodgers in the opener, looking to get past his fifth-inning woes. The right-hander has allowed 15 runs in five June starts, with seven of those runs coming in the fifth inning.
In two of his last three starts Bolsinger didn't allow a run through four innings but allowed two runs in the fifth inning and was pulled with two outs in the middle of a rally.
This is Bolsinger's first start at Chase Field as a visitor. In 2014 with Arizona, he was 0-1 with a 4.09 ERA in four home games, including three starts, with 17 strikeouts and three walks in 22 innings.
Old friend Allen Webster starts for the D-backs, making his first career start against his original organization. In 22 games, including 21 starts, in parts of three big league seasons, Webster has a 6.28 ERA with 68 strikeouts, 56 walks and 13 home runs allowed in 104⅔ innings.
Webster has at least as many walks as strikeouts in 10 of his 21 major league starts.
Time: 6:40 p.m. PT
TV: SportsNet LA