| MLB Park Factors - 2004 | |||||||
| RK | PARK NAME | RUNS | HR | H | 2B | 3B | BB |
| 1 | U.S. Cellular Field (Chicago, Illinois) | 1.139 | 1.402 | 1.095 | 0.979 | 0.870 | 1.016 |
| 2 | Wrigley Field (Chicago, Illinois) | 1.123 | 1.329 | 1.031 | 1.001 | 0.913 | 0.987 |
| 3 | Chase Field (Phoenix, Arizona) | 1.068 | 1.290 | 1.051 | 1.116 | 1.294 | 1.013 |
| 4 | Coors Field (Denver, Colorado) | 1.412 | 1.235 | 1.240 | 1.316 | 1.655 | 1.181 |
| 5 | Citizens Bank Park (Philadelphia, Pennsylvania) | 1.024 | 1.134 | 0.981 | 0.865 | 1.360 | 1.009 |
| 6 | Turner Field (Atlanta, Georgia) | 0.991 | 1.128 | 0.973 | 0.937 | 0.742 | 1.015 |
| 7 | Rogers Centre (Toronto, Ontario) | 1.128 | 1.117 | 1.054 | 1.076 | 1.199 | 1.101 |
| 8 | O.co Coliseum (Oakland, California) | 1.012 | 1.089 | 0.976 | 0.984 | 0.682 | 1.050 |
| 9 | Rangers Ballpark in Arlington (Arlington, Texas) | 1.217 | 1.087 | 1.093 | 1.086 | 1.667 | 0.998 |
| 10 | Minute Maid Park (Houston, Texas) | 1.004 | 1.075 | 0.993 | 0.892 | 1.448 | 0.929 |
| 11 | Angel Stadium of Anaheim (Anaheim, California) | 0.972 | 1.062 | 1.019 | 0.863 | 0.579 | 0.951 |
| 12 | Oriole Park at Camden Yards (Baltimore, Maryland) | 1.077 | 1.050 | 1.022 | 1.036 | 0.704 | 0.950 |
| 13 | Great American Ball Park (Cincinnati, Ohio) | 0.847 | 1.048 | 0.890 | 0.864 | 0.538 | 0.883 |
| 14 | Safeco Field (Seattle, Washington) | 0.834 | 1.033 | 0.867 | 1.033 | 0.470 | 1.046 |
| 15 | Dodger Stadium (Los Angeles, California) | 0.909 | 1.016 | 0.961 | 0.762 | 0.600 | 0.841 |
| 16 | Tropicana Field (St. Petersburg, Florida) | 0.911 | 1.007 | 0.936 | 0.904 | 1.041 | 1.022 |
| 17 | Sun Life Stadium (Miami, Florida) | 0.898 | 0.987 | 0.951 | 0.930 | 1.025 | 1.058 |
| 18 | Miller Park (Milwaukee, Wisconsin) | 1.042 | 0.981 | 0.986 | 1.161 | 1.235 | 1.129 |
| 19 | Fenway Park (Boston, Massachusetts) | 1.120 | 0.974 | 1.100 | 1.334 | 0.600 | 0.975 |
| 20 | Mall of America Field (Minneapolis, Minnesota) | 1.045 | 0.925 | 1.017 | 0.968 | 0.741 | 0.938 |
| 21 | AT&T Park (San Francisco, California) | 1.069 | 0.899 | 1.072 | 1.102 | 1.812 | 0.946 |
| 22 | PNC Park (Pittsburgh, Pennsylvania) | 0.918 | 0.876 | 0.988 | 1.080 | 0.790 | 0.899 |
| 23 | Comerica Park (Detroit, Michigan) | 0.923 | 0.871 | 0.995 | 0.820 | 1.844 | 0.974 |
| 24 | Olympic Stadium (Montreal, Quebec) | 0.899 | 0.850 | 0.949 | 1.133 | 0.888 | 0.999 |
| 25 | Shea Stadium (Flushing, New York) | 0.974 | 0.804 | 1.033 | 0.976 | 0.467 | 0.978 |
| 26 | Busch Stadium (St. Louis, Missouri) | 0.936 | 0.798 | 0.996 | 1.041 | 1.263 | 1.067 |
| 27 | Yankee Stadium (Bronx, New York) | 0.694 | 0.776 | 0.791 | 0.785 | 0.397 | 0.791 |
| 28 | Progressive Field (Cleveland, Ohio) | 0.960 | 0.742 | 0.952 | 1.115 | 0.781 | 1.127 |
| 29 | Kauffman Stadium (Kansas City, Missouri) | 0.910 | 0.706 | 0.975 | 0.949 | 1.419 | 0.978 |
| 30 | Petco Park (San Diego, California) | 0.837 | 0.691 | 0.895 | 0.895 | 1.519 | 1.046 |