Let’s try this again, shall we?
Time for Jordan Montgomery to strap on his big boy pants and show us what he can do, in perhaps the most important start of his (relatively brief) tenure with the Diamondbacks. For what it’s worth, he have never pitched in Coors Field before, so there’s no track record at all on which to base expectations. But, speaking to what I wrote about yesterday, the D-backs have always had a significantly tougher time against the Rockies in Denver than Phoenix. Overall, the win percentage is solidly in favor of us: 260-204 in favor of the D-backs. But if you split it up, the record at Coors Field is only 111-117, compared to 149-87 when we play them at home.
That’s a .631 win percentage against the Rockies when we are home, but just .487 on their home turn, a 144 point swing. I did the same thing for the other teams in the National League West, and here’s how things shook out. For San Francisco and San Diego, I limited the overall numbers to the period they have been in the current park: for Oracle Park, that’s since 2000, and for Petco since 2004.
- Dodgers: Home .428, Road .390 (-38 points)
- Giants: Home .426, Road .419 (-7 points)
- Padres: Home .585, Road .420 (-165 points)
- Rockies: Home .641, Road .487 (-144 points)
I’m quite surprised that it’s Petco and not Coors which has had the biggest impact on results. Since it opened, Arizona are just about even overall, at 185-184, but are just 79-109 there, compared to 106-75 when facing the Padres in Chase. Overall, in that same time San Diego is 66 points better at home than on the road. That’s a much smaller factor, and in line with the Major League average of 74. So it seems it’s just the D-backs who have trouble in San Diego – or equally possibly, the Padres have trouble in Phoenix!