Data courtesy Kenneth Massey. Ratings current through 26 October 2005 (2460 games).
Weight of tied games = 0
| Rk | Team | Div. | Z-Rating | BSWP | Record | Pct | Ratio | SOS | Rk | ||||
| 1 | Chicago White Sox | AC | 177.48 | .6419 | 110-64 | .632 | 1.719 | 103.26 | 13 | ||||
| 2 | New York Yankees | AE | 149.72 | .6011 | 97-70 | .581 | 1.386 | 108.04 | 10 | ||||
| 3 | LA Angels of Anaheim | AW | 149.06 | .6000 | 99-73 | .576 | 1.356 | 109.91 | 7 | ||||
| 4 | Boston Red Sox | AE | 147.29 | .5971 | 95-70 | .576 | 1.357 | 108.53 | 9 | ||||
| 5 | St. Louis Cardinals | NC | 144.21 | .5919 | 105-66 | .614 | 1.591 | 90.647 | 25 | ||||
| 6 | Cleveland Indians | AC | 137.36 | .5799 | 93-69 | .574 | 1.348 | 101.91 | 14 | ||||
| 7 | Oakland Athletics | AW | 130.98 | .5681 | 88-74 | .543 | 1.189 | 110.14 | 6 | ||||
| 8 | Atlanta Braves | NE | 118.31 | .5426 | 91-75 | .548 | 1.213 | 97.512 | 17 | ||||
| 9 | Philadelphia Phillies | NE | 114.89 | .5352 | 88-74 | .543 | 1.189 | 96.612 | 21 | ||||
| 10 | Houston Astros | NC | 114.14 | .5335 | 96-80 | .545 | 1.200 | 95.120 | 23 | ||||
| 11 | Minnesota Twins | AC | 110.79 | .5260 | 83-79 | .512 | 1.051 | 105.45 | 12 | ||||
| 12 | Texas Rangers | AW | 106.56 | .5161 | 79-83 | .488 | 0.952 | 111.96 | 3 | ||||
| 13 | Toronto Blue Jays | AE | 106.03 | .5149 | 80-82 | .494 | 0.976 | 108.68 | 8 | ||||
| 14 | New York Mets | NE | 104.80 | .5119 | 83-79 | .512 | 1.051 | 99.746 | 15 | ||||
| 15 | Florida Marlins | NE | 101.84 | .5046 | 83-79 | .512 | 1.051 | 96.928 | 19 | ||||
| 16 | Washington Nationals | NE | 99.168 | .4979 | 81-81 | .500 | 1.000 | 99.168 | 16 | ||||
| 17 | Milwaukee Brewers | NC | 94.696 | .4862 | 81-81 | .500 | 1.000 | 94.696 | 24 | ||||
| 18 | Baltimore Orioles | AE | 92.641 | .4806 | 74-88 | .457 | 0.841 | 110.17 | 5 | ||||
| 19 | Chicago Cubs | NC | 92.551 | .4804 | 79-83 | .488 | 0.952 | 97.237 | 18 | ||||
| 20 | San Diego Padres | NW | 86.633 | .4636 | 82-83 | .497 | 0.988 | 87.689 | 28 | ||||
| 21 | Seattle Mariners | AW | 83.989 | .4558 | 69-93 | .426 | 0.742 | 113.20 | 2 | ||||
| 22 | Detroit Tigers | AC | 83.619 | .4547 | 71-91 | .438 | 0.780 | 107.17 | 11 | ||||
| 23 | Tampa Bay Devil Rays | AE | 79.930 | .4434 | 67-95 | .414 | 0.705 | 113.33 | 1 | ||||
| 24 | Cincinnati Reds | NC | 79.281 | .4413 | 73-89 | .451 | 0.820 | 96.658 | 20 | ||||
| 25 | Arizona Diamondbacks | NW | 78.998 | .4404 | 77-85 | .475 | 0.906 | 87.205 | 30 | ||||
| 26 | San Francisco Giants | NW | 75.398 | .4288 | 75-87 | .463 | 0.862 | 87.462 | 29 | ||||
| 27 | Los Angeles Dodgers | NW | 69.311 | .4079 | 71-91 | .438 | 0.780 | 88.835 | 26 | ||||
| 28 | Pittsburgh Pirates | NC | 67.849 | .4027 | 67-95 | .414 | 0.705 | 96.203 | 22 | ||||
| 29 | Colorado Rockies | NW | 62.484 | .3827 | 67-95 | .414 | 0.705 | 88.596 | 27 | ||||
| 30 | Kansas City Royals | AC | 58.925 | .3687 | 56-106 | .346 | 0.528 | 111.54 | 4 |
| Division | BSWP | Tms | Top Team | |
| 1 | AL West (AW) | .5391 | 4 | LA Angels of Anaheim (3) |
| 2 | AL East (AE) | .5318 | 5 | New York Yankees (2) |
| 3 | NL East (NE) | .5214 | 5 | Atlanta Braves (8) |
| 4 | AL Central (AC) | .5165 | 5 | Chicago White Sox (1) |
| 5 | NL Central (NC) | .4871 | 6 | St. Louis Cardinals (5) |
| 6 | NL West (NW) | .4127 | 5 | San Diego Padres (20) |