After trading for Shelby Miller, and signing Zack Greinke, the starting rotation was supposed to be a strength for the Arizona Diamondbacks in 2016.
But the Diamondbacks currently have the second-worst rotation ERA in baseball at 5.62. While it’s early, the numbers will say that the 2015 version without Greinke was better.
The Diamondbacks have played two more games than any other team in the majors, but have pitched just the seventh-most innings in the majors (143.0). The bullpen has been taxed early, pitching the most innings (108.2) in baseball. D-backs starters have allowed the most hits (159), home runs (25), and earned runs (90) in the National League, while walking the most opposing batters (90) in the NL.
Chase Field has a lot to do with it. The ball is flying out more than ever, and as a result more home runs (54) have been hit there than any other ballpark this season, averaging 3.18 home runs per game, trailing only Miller Park and Coors Field.
D-backs pitchers have looked completely different in the 10 games played away from Phoenix this season. At home, they own a 6.36 ERA in 157.0 innings pitched, with a 5-12 record, with 131 strikeouts, and 70 walks. On the road, D-backs pitchers own a 2.57 ERA in 94.2 IP.