How has Zack Greinke fared at Coors Field?

Coors Field is a tough ballpark for any pitcher. But considering the conditions that make it the most hitter-happy park in baseball history, Zack Greinke has done pretty well for himself there.

The Diamondbacks’ ace has never lost any of his six starts there, and is 2-0 with a 4.19 ERA and a 1.70 WHIP in Colorado. The WHIP is a bit high, but a 4.19 ERA is not awful considering the conditions. But it is far higher than his career mark of 3.36 and the highest he has in any NL ballpark in which he’s made at least five starts.

Perhaps the most impressive stat from Greinke’s time in Colorado is the fact that he’s only allowed two home runs in 38.2 innings pitched. Coors Field has seen an average of about three home runs per game this season, so allowing just two in 38.2 innings is pretty spectacular.

Though it is the highest ERA Greinke has at any NL park where he’s made at least five starts, but it actually isn’t the highest ERA Greinke has in any ballpark. He has higher ERA’s at the Rogers Centre (6.17), U.S. Cellular Field (5.73), Target Field (4.74), Progressive Field (4.71) and Tropicana Field (4.45). These numbers come mostly from Greinke’s time as a shaky young pitcher with the Royals. His best ballpark, by contrast, is AT&T Park, where he is 3-0 with a 1.69 ERA in five starts.

The Diamondbacks will need Greinke to extend his seven-game win streak to eight tonight to keep the team’s good stretch of play going. He’s looked every bit like an ace since the end of April, he’s gone 8-1 with a 2.41 ERA since April 30.