The “Bill James Handbook 2011”
calculates ballpark categories for a number of statistics, including home runs. The stats isolate the effect of a ballpark – dimensions, wall heights, etc. – to determine if a ballpark favors hitters or pitchers.
A ballpark with a rating of 100 is neutral. A park with a rating of 120 would favor hitters while a rating of 80 favors pitchers. James’ research rates Petco Park as the major leagues’ second most pitcher-friendly park with a home-run rating of 78. The Twins’ new Target Field ranked at the most difficult to hit homers with a rating of 65.
Following are James’ ratings for the five most difficult home-run hitting parks:
1) Target Field (Twins) 65
2) Petco Park (Padres) 78
3) Progressive Field (Indians) 80
4) Kauffman Stadium (Royals) 81
5) Busch Stadium (Cardinals) and Safeco Field (Mariners) 82.
The five best parks for blasting homers were:
1) U.S. Cellular Field (White Sox) 135
2) Yankee Stadium (Yankees) 134
3) Coors Field (Rockies) 124
4) Camden Yards (Orioles) 123
5) Great American Ballpark (Reds) 119