matrick wrote:Of course it matters, those 81 games played in Safeco field with that outfield is factored into the equation. They also factor into the equation when they play in other parks where they have less of an impact because they play far fewer games at each park. Also, the schedule is skewed towards playing the majority of the games within the same division. In the AL West 3 of the 4 teams are in the bottom half of the american league in doubles. Only Detroit hit fewer doubles than Anaheim and Texas. Teams without doubles hitters don't hit doubles in any park.
Anyway, you don't need an index to tell you if a park is good for hitting doubles.
It doesn't matter if a team has everyone hitting 50 doubles, or 10. What matters in a park index is the number that were hit at home (Safeco) by both teams, and the number that were hit on Seattles road games, (opponents home park). If 4 out of 10 doubles occur at Safeco, and the other 6 occur on road, it's a negative index. It can be 40/60. What matter's is the DIFFERENCE, not if its a alot or small amount of doubles.
02 for example 84 double index
Seattle at home hit 105 doubles, Seattle on road hit 145, 40 more
Seattles opponents at Safeco hit 126 doubles, they hit 135 on Seattles road games, 9 more.
You now have 105 +126 = 231 Safeco doubles.
Away from Safeco you have 145+135 = 280 doubles.
231 Safeco doubles versus 280 non Safeco doubles gives you a 84 index, which is negative, 100 is neutral. For Safeco to be neutral, out of those combined 511 total doubles, about 256 would have to be at Safeco.