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mlyons · 07-25-2006, 01:37 PM

Baseball Reference has quick-and-dirty park factors (listed under attendance/age/parks for each team). They're simple modifiers -- just divide runs or OPS or whatever by that park factor's percentage to determine what a "park-neutral" result would be (although you should make sure you're only doing it with home park results, not all of them). So a team that scores 400 runs at home in a park with a 95 factor would score (400/.95 =) 421 runs in a neutral park.

That's kind of a sloppy way to do it, though, since ballparks affect results in different ways. Dodgers Stadium, for example, is very much a pitcher's park, with an overall park factor of somewhere between 91 and 95, depending on how you calculate it. It's also an easy park to hit homeruns in, though, so a team with a lot of homerun hitters won't see their offense reduced nearly as much as a team with a lot of gap hitters (it's the most difficult park in the majors to hit a double or triple in).

I generated a bunch of park factors a few months ago. If you're really interested and feel like wading through a bunch of data, you can find them here and here.

07-25-2006, 01:37 PM	#3
mlyons Hall Of Famer Join Date: Jan 2004 Location: Philadelphia Posts: 3,725	Baseball Reference has quick-and-dirty park factors (listed under attendance/age/parks for each team). They're simple modifiers -- just divide runs or OPS or whatever by that park factor's percentage to determine what a "park-neutral" result would be (although you should make sure you're only doing it with home park results, not all of them). So a team that scores 400 runs at home in a park with a 95 factor would score (400/.95 =) 421 runs in a neutral park. That's kind of a sloppy way to do it, though, since ballparks affect results in different ways. Dodgers Stadium, for example, is very much a pitcher's park, with an overall park factor of somewhere between 91 and 95, depending on how you calculate it. It's also an easy park to hit homeruns in, though, so a team with a lot of homerun hitters won't see their offense reduced nearly as much as a team with a lot of gap hitters (it's the most difficult park in the majors to hit a double or triple in). I generated a bunch of park factors a few months ago. If you're really interested and feel like wading through a bunch of data, you can find them here and here. __________________ Things can always be worse.