Gray gave up four runs, two of them earned, on five hits in 6 1/3 innings of work. He struck out five batters and gave up two walks.
With the loss, Gray dropped to 12-6 on the season with a 2.13 ERA.
Anderson threw six innings while striking out three batters and allowing one walk.
Anderson (6-5) now has a 4.22 ERA in 134 1/3 innings this season.
Hammel tossed five innings while recording three walks and five strikeouts.
With the loss, Hammel dropped to 7-6 on the year with a 3.42 ERA.
Kershaw allowed just one run on three hits in eight dominant innings of work. The 14 strikeouts was one of the more impressive feats he has accomplished this season.
Kershaw improved to 11-6 with the win. He now has a 2.24 ERA on the year.
Wacha allowed four runs, all of the unearned, on six hits in six innings of work. He allowed a grand slam to Marlon Byrd, but the runs weren't credited as earned because of an error.
Wacha now has a 2.69 ERA this season.
Leake tossed 6 1/3 innings while striking out four batters and giving up one walk.
Leake now has a 3.53 ERA this season.
Harvey threw six scoreless innings while giving up just two hits. He struck out the eight batters and limited Boston to just one walk.
Harvey (11-7) has a 2.59 ERA in 160 innings this season.
Owens allowed two runs on five hits in five innings of work. Despite the six strikeouts, Owens struggled with his command as he allowed four walks. He now has a 4.03 ERA this season.
Danks tossed six innings, giving up the two runs on seven hits. He struck out five batters but allowed two home runs.
With the loss, Danks dropped to 6-12 on the season with a 4.82 ERA.
Walker struck out six batters while throwing 6 1/3 scoreless innings.
With the win, Walker improved to 10-7 with a 4.53 ERA this season.
Walker left the game with a cramp in his right hip flexor.