Back on May 15th I published an article Is Chase Field No Longer a Hitters Ballpark? I would like to suggest you go back and review that article quickly.
Still here? No really, please go take a look, as it will make it easier to understand what is below.
In the 2nd paragraph of that May article I wrote:
We can’t tell for 100% certain, or just to what extent (that it’s no longer a hitters’ park) just yet. In the world of numbers, this sample size is still not quite large enough to be able to say Chase is no longer a hitters park with absolute conviction.