These park factors are for runs scored. They are derived by looking at the ratio of runs scored per inning at home versus road for batters and pitchers (separately), after which the two results are averaged. The home park factors are then used to determine the road park factors for each team on an inning-by-inning basis. The final factors are arrived at by adjusting so that the league average is exactly 1. They have not been regressed towards the mean.
| Team | Batter PF | 2002 | Pitcher PF | 2002 | offence'03(%) | defence'03(%) |
| Montreal Expos | 1.126 | .980 | 1.137 | .981 | -15.1 | +15.4 |
| Colorado Rockies | 1.092 | 1.175 | 1.100 | 1.191 | +5.7 | -10.4 |
| Arizona D-Backs | 1.089 | 1.063 | 1.095 | 1.068 | -12.5 | +16.9 |
| Houston Astros | 1.047 | 1.060 | 1.049 | 1.063 | +2.8 | +14.0 |
| San Francisco Giants | 1.001 | .938 | 1.000 | .933 | +2.6 | +14.2 |
| Milwaukee Brewers | .998 | .985 | .998 | .982 | -5.7 | -16.4 |
| Cincinnati Reds | .996 | 1.083 | .996 | 1.087 | -7.8 | -18.9 |
| Chicago Cubs | .982 | .994 | .981 | .992 | -1.9 | +7.6 |
| Pittsburgh Pirates | .981 | 1.058 | .979 | 1.061 | +2.2 | -9.5 |
| Saint Louis Cardinals | .980 | .975 | .977 | .971 | +18.2 | -7.5 |
| New York Mets | .978 | .924 | .977 | .921 | -11.3 | -5.6 |
| Atlanta Braves | .977 | .999 | .976 | 1.000 | +24.6 | -0.6 |
| Philadelphia Phillies | .947 | .907 | .943 | .903 | +12.0 | +1.1 |
| Florida Marlins | .946 | .968 | .941 | .967 | +6.7 | +1.6 |
| Los Angeles Dodgers | .946 | .939 | .942 | .935 | -19.4 | +21.8 |
| San Diego Padres | .914 | .950 | .908 | .945 | -1.1 | -23.6 |
| Team | Batter PF | 2002 | Pitcher PF | 2002 | offence'03(%) | defence'03(%) |
| Kansas City Royals | 1.113 | 1.113 | 1.121 | 1.122 | -4.2 | +1.6 |
| Texas Rangers | 1.092 | 1.100 | 1.100 | 1.107 | -3.8 | -12.5 |
| Boston Red Sox | 1.056 | .968 | 1.060 | .968 | +15.0 | +4.6 |
| Toronto Blue Jays | 1.048 | .990 | 1.051 | .989 | +9.4 | -0.3 |
| Minnesota Twins | 1.021 | .974 | 1.022 | .972 | -0.9 | +9.4 |
| Chicago White Sox | 1.001 | 1.030 | 1.000 | 1.032 | +1.7 | +8.6 |
| Tampa Bay Devil Rays | .991 | .983 | .991 | .982 | -9.0 | -9.6 |
| New York Yankees | .981 | .967 | .980 | .965 | +13.7 | +8.5 |
| Seattle Mariners | .974 | .945 | .973 | .941 | +4.7 | +16.8 |
| Baltimore Orioles | .959 | .959 | .956 | .958 | -2.7 | -8.3 |
| Cleveland Indians | .951 | 1.022 | .947 | 1.022 | -8.4 | -3.1 |
| Detroit Tigers | .946 | .944 | .941 | .939 | -22.2 | -25.4 |
| Oakland Athletics | .937 | 1.034 | .932 | 1.036 | +5.3 | +12.4 |
| Anaheim Angels | .929 | .970 | .925 | .968 | +1.3 | -2.7 |
The final results are composite park factors - i.e. they can be applied to a player's overall stat line. For offence and defence ratings, plus (+) indicates the performance was better than league average; minus (-) indicates the performance was worse than league average.
https://www.battersbox.ca/article.php?story=20031001122941999