League pitching register - 2004
Regular season
| Primary |
| Name | Team | P | Age | ERA | W | L | S | G | GS | CG | SHO | INN | H | R | ER | BB | K | HR | GDP |
| Terry Adams | Dyn | mr | 31 | 3.64 | 3 | 1 | 2 | 59 | 0 | 0 | 0 | 81.2 | 91 | 40 | 33 | 29 | 58 | 4 | 12 |
| Jeremy Affeldt* | Dev | sp | 25 | 3.18 | 2 | 1 | 0 | 17 | 0 | 0 | 0 | 28.1 | 21 | 12 | 10 | 13 | 22 | 3 | 4 |
| Kurt Ainsworth | Nor | sp | 25 | 5.54 | 2 | 1 | 0 | 8 | 8 | 0 | 0 | 39.0 | 53 | 26 | 24 | 8 | 26 | 7 | 2 |
| Wilson Alvarez* | Dev | sp | 34 | 2.13 | 1 | 1 | 3 | 48 | 0 | 0 | 0 | 114.0 | 113 | 27 | 27 | 30 | 80 | 7 | 14 |
| Brian Anderson* | Mud | sp | 32 | 6.12 | 9 | 18 | 0 | 32 | 32 | 1 | 0 | 197.0 | 257 | 150 | 134 | 53 | 70 | 48 | 27 |
| Tony Armas | Buc | sp | 26 | 1.98 | 0 | 1 | 0 | 2 | 2 | 0 | 0 | 13.2 | 9 | 4 | 3 | 4 | 9 | 1 | 0 |
| Bronson Arroyo | Spe | mr | 27 | 1.25 | 2 | 0 | 2 | 13 | 0 | 0 | 0 | 21.2 | 13 | 3 | 3 | 3 | 19 | 0 | 0 |
| Luis Ayala | Mud | mr | 26 | 2.92 | 2 | 1 | 1 | 51 | 0 | 0 | 0 | 86.1 | 84 | 29 | 28 | 16 | 47 | 9 | 16 |
| Danys Baez | Fis | cl | 26 | 3.63 | 4 | 3 | 0 | 72 | 0 | 0 | 0 | 89.1 | 83 | 39 | 36 | 34 | 66 | 12 | 8 |
| Grant Balfour | Lit | mr | 26 | 1.29 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 7.0 | 4 | 2 | 1 | 5 | 6 | 1 | 0 |
| Miguel Batista | Spe | sp | 33 | 4.44 | 13 | 11 | 0 | 31 | 31 | 0 | 0 | 186.2 | 218 | 106 | 92 | 85 | 123 | 28 | 23 |
| Rick Bauer | Buc | mr | 27 | 3.94 | 3 | 0 | 4 | 42 | 0 | 0 | 0 | 75.1 | 69 | 34 | 33 | 29 | 51 | 5 | 14 |
| Rod Beck | Wil | cl | 35 | 2.98 | 2 | 4 | 3 | 33 | 0 | 0 | 0 | 42.1 | 39 | 19 | 14 | 16 | 28 | 6 | 5 |
| Josh Beckett | Wil | sp | 24 | 5.74 | 7 | 5 | 0 | 17 | 17 | 0 | 0 | 94.0 | 110 | 63 | 60 | 41 | 100 | 8 | 8 |
| Armando Benitez | Sea | cl | 31 | 3.49 | 4 | 2 | 0 | 38 | 0 | 0 | 0 | 56.2 | 53 | 25 | 22 | 23 | 54 | 5 | 8 |
| Joaquin Benoit | Gan | sp | 26 | 6.08 | 0 | 6 | 0 | 14 | 8 | 0 | 0 | 63.2 | 60 | 44 | 43 | 24 | 50 | 16 | 2 |
| Joe Borowski | Gan | cl | 33 | 3.31 | 2 | 6 | 17 | 53 | 0 | 0 | 0 | 70.2 | 66 | 28 | 26 | 24 | 71 | 6 | 7 |
| Jason Boyd | Buc | mr | 31 | 1.83 | 5 | 5 | 0 | 52 | 0 | 0 | 0 | 64.0 | 43 | 16 | 13 | 25 | 41 | 3 | 4 |
| Chad Bradford | Mud | mr | 29 | 3.40 | 3 | 3 | 2 | 57 | 0 | 0 | 0 | 82.0 | 70 | 32 | 31 | 40 | 65 | 10 | 15 |
| Dewon Brazelton | Can | sp | 24 | 0.00 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1.2 | 1 | 0 | 0 | 1 | 2 | 0 | 0 |
| Jim Brower | Fis | mr | 31 | 5.34 | 6 | 2 | 1 | 51 | 0 | 0 | 0 | 113.0 | 124 | 70 | 67 | 56 | 72 | 23 | 16 |
| Kevin Brown | Dyn | sp | 39 | 4.37 | 8 | 6 | 0 | 17 | 17 | 1 | 0 | 117.1 | 115 | 59 | 57 | 34 | 82 | 12 | 14 |
| Kevin Brown | Sea | sp | 39 | 4.05 | 12 | 3 | 0 | 17 | 17 | 0 | 0 | 113.1 | 131 | 57 | 51 | 34 | 85 | 7 | 14 |
| Kevin Brown |   | sp | 39 | 4.21 | 20 | 9 | 0 | 34 | 34 | 1 | 0 | 230.2 | 246 | 116 | 108 | 68 | 167 | 19 | 28 |
| Mark Buehrle* | Dyn | sp | 25 | 6.63 | 10 | 13 | 0 | 32 | 32 | 0 | 0 | 183.1 | 262 | 156 | 135 | 49 | 95 | 23 | 22 |
| Chris Capuano* | Lit | sp | 25 | 0.00 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 3.0 | 3 | 0 | 0 | 1 | 3 | 0 | 2 |
| Lance Carter | Can | cl | 29 | 0.00 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Shawn Chacon | Spe | sp | 26 | 4.92 | 4 | 7 | 0 | 19 | 19 | 0 | 0 | 109.2 | 100 | 62 | 60 | 60 | 59 | 21 | 3 |
| Roger Clemens | Wac | sp | 41 | 3.81 | 15 | 8 | 0 | 33 | 33 | 0 | 0 | 200.2 | 205 | 92 | 85 | 64 | 199 | 24 | 8 |
| Matt Clement | Can | sp | 29 | 4.81 | 6 | 16 | 0 | 32 | 32 | 1 | 0 | 205.2 | 197 | 118 | 110 | 100 | 162 | 38 | 18 |
| Bartolo Colon | Can | sp | 31 | 4.59 | 13 | 12 | 0 | 33 | 33 | 8 | 0 | 231.1 | 254 | 135 | 118 | 77 | 165 | 31 | 30 |
| Jose Contreras | Dev | sp | 32 | 3.40 | 9 | 7 | 3 | 61 | 0 | 0 | 0 | 87.1 | 77 | 36 | 33 | 30 | 91 | 9 | 13 |
| Chad Cordero | Wil | mr | 22 | 0.75 | 0 | 0 | 1 | 10 | 0 | 0 | 0 | 12.0 | 8 | 1 | 1 | 5 | 12 | 0 | 0 |
| Francisco Cordero | Mud | mr | 29 | 2.44 | 6 | 3 | 17 | 63 | 0 | 0 | 0 | 85.0 | 65 | 24 | 23 | 36 | 102 | 4 | 8 |
| Rheal Cormier* | Sea | mr | 37 | 3.81 | 5 | 5 | 23 | 64 | 0 | 0 | 0 | 78.0 | 81 | 35 | 33 | 25 | 63 | 14 | 4 |
| Jack Cressend | Spe | mr | 29 | 2.57 | 1 | 1 | 0 | 3 | 0 | 0 | 0 | 7.0 | 8 | 2 | 2 | 3 | 4 | 0 | 2 |
| Juan Cruz | Zom | mr | 25 | 7.70 | 1 | 0 | 0 | 44 | 0 | 0 | 0 | 73.2 | 110 | 72 | 63 | 36 | 82 | 13 | 5 |
| Will Cunnane | Gan | mr | 30 | 5.02 | 2 | 1 | 0 | 10 | 0 | 0 | 0 | 14.1 | 17 | 12 | 8 | 3 | 12 | 3 | 0 |
| Doug Davis* | Mud | sp | 28 | 5.88 | 1 | 0 | 0 | 27 | 0 | 0 | 0 | 41.1 | 59 | 30 | 27 | 20 | 14 | 6 | 4 |
| Jason Davis | Nor | sp | 24 | 5.26 | 6 | 5 | 0 | 15 | 15 | 0 | 0 | 87.1 | 87 | 58 | 51 | 36 | 53 | 11 | 11 |
| Jason Davis | Zom | sp | 24 | 4.32 | 5 | 6 | 0 | 17 | 17 | 0 | 0 | 110.1 | 116 | 62 | 53 | 26 | 48 | 14 | 14 |
| Jason Davis |   | sp | 24 | 4.74 | 11 | 11 | 0 | 32 | 32 | 0 | 0 | 197.2 | 203 | 120 | 104 | 62 | 101 | 25 | 25 |
| Zach Day | Wil | sp | 26 | 3.56 | 12 | 5 | 0 | 23 | 23 | 2 | 0 | 156.2 | 148 | 71 | 62 | 59 | 48 | 8 | 17 |
| Jorge DePaula | Spe | mr | 25 | 1.17 | 0 | 0 | 0 | 2 | 2 | 0 | 0 | 15.1 | 5 | 2 | 2 | 2 | 6 | 2 | 0 |
| R.A. Dickey | Zom | mr | 29 | 4.44 | 0 | 3 | 0 | 15 | 0 | 0 | 0 | 24.1 | 27 | 14 | 12 | 4 | 19 | 2 | 4 |
| Brendan Donnelly | Sea | mr | 32 | 3.11 | 0 | 1 | 14 | 36 | 0 | 0 | 0 | 46.1 | 42 | 17 | 16 | 11 | 55 | 4 | 3 |
| Brendan Donnelly | Mud | mr | 32 | 2.25 | 1 | 5 | 12 | 27 | 0 | 0 | 0 | 32.0 | 23 | 9 | 8 | 17 | 32 | 1 | 4 |
| Brendan Donnelly |   | mr | 32 | 2.76 | 1 | 6 | 26 | 63 | 0 | 0 | 0 | 78.1 | 65 | 26 | 24 | 28 | 87 | 5 | 7 |
| Octavio Dotel | Nor | mr | 30 | 3.50 | 7 | 5 | 27 | 65 | 0 | 0 | 0 | 69.1 | 52 | 29 | 27 | 32 | 80 | 9 | 8 |
| Eric DuBose* | Nor | sp | 28 | 4.37 | 8 | 3 | 0 | 15 | 15 | 1 | 0 | 90.2 | 85 | 47 | 44 | 37 | 55 | 9 | 4 |
| Adam Eaton | Gan | sp | 26 | 3.94 | 11 | 8 | 0 | 32 | 32 | 0 | 0 | 194.1 | 192 | 100 | 85 | 79 | 120 | 21 | 13 |
| Cal Eldred | Lit | mr | 36 | 10.61 | 0 | 1 | 0 | 6 | 0 | 0 | 0 | 9.1 | 12 | 11 | 11 | 5 | 7 | 4 | 2 |
| Kelvim Escobar | Zom | sp | 28 | 5.63 | 2 | 2 | 0 | 72 | 0 | 0 | 0 | 136.0 | 154 | 96 | 85 | 75 | 135 | 18 | 10 |
| Scott Eyre* | Mud | mr | 32 | 5.94 | 1 | 1 | 0 | 29 | 0 | 0 | 0 | 36.1 | 43 | 24 | 24 | 21 | 19 | 5 | 0 |
| Kyle Farnsworth | Can | mr | 28 | 4.97 | 5 | 6 | 3 | 69 | 0 | 0 | 0 | 88.2 | 98 | 52 | 49 | 44 | 102 | 17 | 9 |
| Casey Fossum* | Wac | sp | 26 | 10.13 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 2.2 | 4 | 3 | 3 | 0 | 2 | 1 | 1 |
| Casey Fossum* | Zom | sp | 26 | 6.16 | 4 | 0 | 0 | 13 | 0 | 0 | 0 | 19.0 | 22 | 14 | 13 | 8 | 12 | 3 | 0 |
| Casey Fossum* |   | sp | 26 | 6.65 | 4 | 0 | 0 | 14 | 0 | 0 | 0 | 21.2 | 26 | 17 | 16 | 8 | 14 | 4 | 1 |
| Keith Foulke | Wil | cl | 31 | 2.97 | 6 | 8 | 34 | 61 | 0 | 0 | 0 | 72.2 | 59 | 25 | 24 | 27 | 70 | 5 | 5 |
| Ryan Franklin | Dev | sp | 31 | 5.86 | 7 | 17 | 0 | 36 | 35 | 2 | 0 | 182.2 | 229 | 143 | 119 | 69 | 81 | 38 | 19 |
| Brian Fuentes* | Buc | mr | 28 | 4.28 | 3 | 5 | 3 | 48 | 0 | 0 | 0 | 54.2 | 51 | 27 | 26 | 26 | 62 | 8 | 0 |
| Eric Gagne | Spe | cl | 28 | 2.03 | 12 | 3 | 6 | 67 | 0 | 0 | 0 | 97.2 | 57 | 22 | 22 | 23 | 148 | 5 | 4 |
| Jon Garland | Lit | sp | 24 | 9.60 | 0 | 2 | 0 | 3 | 3 | 0 | 0 | 15.0 | 23 | 16 | 16 | 10 | 10 | 6 | 3 |
| Chad Gaudin | Lit | mr | 21 | 3.23 | 0 | 0 | 0 | 11 | 0 | 0 | 0 | 30.2 | 33 | 17 | 11 | 14 | 16 | 4 | 2 |
| Tom Glavine* | Zom | sp | 38 | 4.88 | 0 | 2 | 10 | 26 | 0 | 0 | 0 | 27.2 | 35 | 17 | 15 | 9 | 15 | 5 | 4 |
| Gary Glover | Zom | mr | 27 | 0.00 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0.2 | 1 | 0 | 0 | 1 | 2 | 0 | 0 |
| Jeremi Gonzalez | Gan | sp | 29 | 5.70 | 4 | 13 | 0 | 27 | 26 | 2 | 0 | 151.2 | 157 | 100 | 96 | 84 | 100 | 31 | 5 |
| Tom Gordon | Nor | mr | 36 | 3.66 | 4 | 0 | 0 | 21 | 0 | 0 | 0 | 39.1 | 33 | 17 | 16 | 14 | 45 | 3 | 1 |
| Tom Gordon | Zom | mr | 36 | 3.16 | 1 | 1 | 1 | 18 | 0 | 0 | 0 | 25.2 | 18 | 10 | 9 | 10 | 31 | 2 | 2 |
| Tom Gordon |   | mr | 36 | 3.46 | 5 | 1 | 1 | 39 | 0 | 0 | 0 | 65.0 | 51 | 27 | 25 | 24 | 76 | 5 | 3 |
| Eddie Guardado* | Fis | cl | 33 | 3.14 | 2 | 6 | 18 | 32 | 0 | 0 | 0 | 43.0 | 37 | 17 | 15 | 15 | 47 | 3 | 1 |
| Roy Halladay | Wil | sp | 27 | 3.38 | 22 | 6 | 0 | 35 | 35 | 13 | 2 | 271.2 | 247 | 110 | 102 | 41 | 201 | 28 | 25 |
| Chris Hammond* | Nor | mr | 38 | 3.92 | 1 | 1 | 0 | 42 | 0 | 0 | 0 | 57.1 | 76 | 33 | 25 | 12 | 30 | 6 | 5 |
| Mike Hampton* | Zom | sp | 31 | 5.25 | 6 | 18 | 0 | 33 | 32 | 2 | 1 | 190.1 | 214 | 130 | 111 | 86 | 90 | 26 | 21 |
| Rich Harden | Can | sp | 22 | 8.44 | 1 | 3 | 0 | 6 | 6 | 0 | 0 | 26.2 | 38 | 26 | 25 | 16 | 21 | 6 | 4 |
| Travis Harper | Dyn | mr | 28 | 4.09 | 7 | 9 | 2 | 68 | 0 | 0 | 0 | 94.2 | 107 | 43 | 43 | 27 | 67 | 11 | 13 |
| Shigetoshi Hasegawa | Sea | cl | 35 | 5.43 | 4 | 3 | 9 | 49 | 0 | 0 | 0 | 64.2 | 92 | 42 | 39 | 15 | 34 | 9 | 15 |
| LaTroy Hawkins | Wac | mr | 31 | 2.10 | 6 | 4 | 19 | 63 | 0 | 0 | 0 | 81.1 | 71 | 25 | 19 | 21 | 86 | 8 | 4 |
| Pat Hentgen | Spe | sp | 35 | 3.59 | 1 | 1 | 0 | 25 | 2 | 0 | 0 | 82.2 | 68 | 34 | 33 | 42 | 54 | 7 | 8 |
| Felix Heredia* | Buc | mr | 29 | 3.60 | 3 | 2 | 1 | 39 | 0 | 0 | 0 | 50.0 | 40 | 26 | 20 | 21 | 31 | 5 | 4 |
| Matt Herges | Wac | mr | 34 | 4.41 | 3 | 2 | 1 | 42 | 0 | 0 | 0 | 51.0 | 63 | 30 | 25 | 17 | 40 | 5 | 2 |
| Dustin Hermanson | Buc | mr | 31 | 4.72 | 2 | 2 | 0 | 7 | 7 | 0 | 0 | 34.1 | 50 | 21 | 18 | 6 | 17 | 6 | 3 |
| Livan Hernandez | Nor | sp | 29 | 4.52 | 17 | 11 | 0 | 36 | 36 | 10 | 1 | 252.2 | 283 | 133 | 127 | 70 | 175 | 34 | 33 |
| Runelvys Hernandez | Zom | sp | 26 | 6.51 | 5 | 13 | 0 | 20 | 20 | 0 | 0 | 113.1 | 130 | 91 | 82 | 39 | 52 | 14 | 4 |
| Trey Hodges | Zom | mr | 26 | 6.41 | 1 | 1 | 0 | 34 | 0 | 0 | 0 | 80.0 | 90 | 58 | 57 | 40 | 77 | 17 | 7 |
| Darren Holmes | Fis | mr | 38 | 4.34 | 1 | 4 | 0 | 16 | 0 | 0 | 0 | 18.2 | 15 | 9 | 9 | 9 | 15 | 4 | 3 |
| Tim Hudson | Dyn | sp | 28 | 3.02 | 12 | 10 | 0 | 33 | 33 | 6 | 3 | 226.2 | 204 | 84 | 76 | 64 | 150 | 22 | 26 |
| Kazuhisa Ishii* | Mud | sp | 30 | 7.85 | 4 | 22 | 0 | 31 | 31 | 0 | 0 | 149.0 | 176 | 134 | 130 | 107 | 131 | 25 | 13 |
| Jason Isringhausen | Sea | cl | 31 | 1.41 | 3 | 3 | 1 | 38 | 0 | 0 | 0 | 51.0 | 23 | 13 | 8 | 19 | 47 | 1 | 4 |
| Jason Johnson | Zom | sp | 30 | 5.32 | 4 | 6 | 0 | 12 | 12 | 1 | 0 | 69.1 | 88 | 47 | 41 | 28 | 50 | 7 | 6 |
| Randy Johnson* | Zom | sp | 40 | 5.47 | 4 | 13 | 0 | 21 | 20 | 2 | 0 | 125.0 | 170 | 82 | 76 | 22 | 111 | 23 | 12 |
| Jorge Julio | Nor | cl | 25 | 0.00 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1.2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
| Jason Kershner* | Sea | mr | 27 | 1.86 | 1 | 0 | 0 | 8 | 0 | 0 | 0 | 9.2 | 12 | 2 | 2 | 7 | 6 | 1 | 2 |
| Jason Kershner* |   | mr | 27 | 1.86 | 1 | 0 | 0 | 8 | 0 | 0 | 0 | 9.2 | 12 | 2 | 2 | 7 | 6 | 1 | 2 |
| Brooks Kieschnick | Gan | mr | 32 | 0.00 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0.0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 |
| Byung-Hyun Kim | Nor | cl | 25 | 4.50 | 4 | 2 | 5 | 17 | 4 | 1 | 0 | 44.0 | 42 | 30 | 22 | 12 | 42 | 11 | 6 |
| Byung-Hyun Kim | Lit | cl | 25 | 3.27 | 3 | 1 | 0 | 6 | 6 | 0 | 0 | 41.1 | 47 | 18 | 15 | 10 | 31 | 6 | 3 |
| Byung-Hyun Kim |   | cl | 25 | 3.90 | 7 | 3 | 5 | 23 | 10 | 1 | 0 | 85.1 | 89 | 48 | 37 | 22 | 73 | 17 | 9 |
| Ray King* | Dev | mr | 30 | 3.72 | 3 | 4 | 0 | 49 | 0 | 0 | 0 | 55.2 | 54 | 27 | 23 | 31 | 45 | 1 | 6 |
| Billy Koch | Zom | mr | 29 | 4.38 | 2 | 0 | 1 | 9 | 0 | 0 | 0 | 12.1 | 12 | 7 | 6 | 4 | 10 | 3 | 1 |
| Danny Kolb | Dev | cl | 29 | 1.15 | 1 | 0 | 5 | 11 | 0 | 0 | 0 | 15.2 | 11 | 2 | 2 | 5 | 10 | 0 | 2 |
| Mike Koplove | Dev | mr | 27 | 3.72 | 3 | 1 | 0 | 7 | 0 | 0 | 0 | 9.2 | 12 | 4 | 4 | 5 | 6 | 0 | 2 |
| John Lackey | Lit | sp | 25 | 7.42 | 1 | 3 | 0 | 10 | 7 | 0 | 0 | 40.0 | 53 | 35 | 33 | 20 | 32 | 12 | 2 |
| Brian Lawrence | Gan | sp | 28 | 6.59 | 3 | 9 | 0 | 16 | 15 | 1 | 0 | 86.0 | 119 | 71 | 63 | 35 | 45 | 18 | 15 |
| Al Leiter* | Lit | sp | 38 | 4.53 | 2 | 7 | 0 | 16 | 16 | 0 | 0 | 97.1 | 108 | 58 | 49 | 41 | 76 | 14 | 7 |
| Curtis Leskanic | Lit | mr | 36 | 3.86 | 4 | 4 | 2 | 53 | 0 | 0 | 0 | 63.0 | 49 | 27 | 27 | 38 | 53 | 8 | 6 |
| Al Levine | Fis | mr | 36 | 4.74 | 7 | 7 | 1 | 60 | 0 | 0 | 0 | 76.0 | 88 | 49 | 40 | 37 | 38 | 15 | 9 |
| Brad Lidge | Dev | mr | 27 | 3.45 | 3 | 3 | 0 | 36 | 0 | 0 | 0 | 44.1 | 42 | 18 | 17 | 14 | 67 | 5 | 1 |
| Kerry Ligtenberg | Dyn | mr | 33 | 3.35 | 0 | 3 | 2 | 29 | 0 | 0 | 0 | 37.2 | 41 | 16 | 14 | 11 | 32 | 4 | 0 |
| Ted Lilly* | Dyn | sp | 28 | 4.79 | 14 | 9 | 0 | 32 | 32 | 1 | 0 | 204.2 | 219 | 120 | 109 | 69 | 136 | 28 | 10 |
| Scott Linebrink | Wil | mr | 27 | 4.57 | 1 | 3 | 0 | 16 | 3 | 0 | 0 | 43.1 | 47 | 22 | 22 | 17 | 40 | 3 | 1 |
| Esteban Loaiza | Spe | sp | 32 | 3.43 | 5 | 3 | 0 | 12 | 12 | 1 | 1 | 78.2 | 74 | 33 | 30 | 21 | 60 | 7 | 7 |
| Esteban Loaiza | Lit | sp | 32 | 3.73 | 8 | 6 | 0 | 21 | 19 | 4 | 2 | 140.0 | 121 | 62 | 58 | 35 | 120 | 15 | 10 |
| Esteban Loaiza |   | sp | 32 | 3.62 | 13 | 9 | 0 | 33 | 31 | 5 | 3 | 218.2 | 195 | 95 | 88 | 56 | 180 | 22 | 17 |
| Kyle Lohse | Mud | sp | 25 | 7.49 | 1 | 4 | 0 | 7 | 7 | 0 | 0 | 33.2 | 48 | 30 | 28 | 9 | 26 | 9 | 0 |
| Braden Looper | Nor | cl | 29 | 3.87 | 2 | 1 | 2 | 59 | 0 | 0 | 0 | 83.2 | 88 | 38 | 36 | 32 | 45 | 9 | 8 |
| Aquilino Lopez | Can | mr | 29 | 2.43 | 2 | 4 | 2 | 49 | 0 | 0 | 0 | 66.2 | 57 | 20 | 18 | 30 | 52 | 2 | 12 |
| Javier Lopez* | Sea | mr | 26 | 3.26 | 3 | 2 | 1 | 32 | 0 | 0 | 0 | 38.2 | 35 | 14 | 14 | 13 | 27 | 4 | 8 |
| Derek Lowe | Spe | sp | 31 | 5.17 | 12 | 10 | 0 | 28 | 28 | 2 | 0 | 182.2 | 197 | 114 | 105 | 71 | 99 | 25 | 16 |
| Noah Lowry* | Spe | mr | 23 | 5.79 | 0 | 2 | 0 | 6 | 0 | 0 | 0 | 9.1 | 7 | 7 | 6 | 7 | 5 | 1 | 0 |
| Greg Maddux | Wac | sp | 38 | 4.66 | 8 | 9 | 0 | 25 | 25 | 1 | 0 | 162.1 | 190 | 93 | 84 | 34 | 70 | 21 | 21 |
| Ron Mahay* | Wac | mr | 33 | 5.02 | 1 | 5 | 19 | 50 | 0 | 0 | 0 | 52.0 | 44 | 34 | 29 | 26 | 49 | 7 | 3 |
| Matt Mantei | Lit | cl | 30 | 3.21 | 6 | 4 | 15 | 58 | 0 | 0 | 0 | 67.1 | 51 | 24 | 24 | 30 | 86 | 12 | 3 |
| Mike Maroth* | Zom | sp | 26 | 10.03 | 1 | 19 | 0 | 28 | 28 | 1 | 0 | 122.0 | 235 | 150 | 136 | 44 | 43 | 37 | 16 |
| Damaso Marte* | Can | mr | 29 | 2.85 | 6 | 4 | 5 | 54 | 0 | 0 | 0 | 75.2 | 62 | 25 | 24 | 35 | 74 | 7 | 6 |
| Tom Martin* | Gan | mr | 34 | 2.97 | 0 | 1 | 1 | 28 | 0 | 0 | 0 | 36.1 | 27 | 12 | 12 | 26 | 29 | 4 | 7 |
| Pedro Martinez | Wil | sp | 32 | 2.85 | 12 | 7 | 0 | 26 | 26 | 1 | 1 | 170.1 | 136 | 70 | 54 | 57 | 176 | 18 | 8 |
| Pedro Martinez | Sea | sp | 32 | 1.97 | 6 | 1 | 0 | 7 | 7 | 0 | 0 | 50.1 | 34 | 13 | 11 | 21 | 58 | 3 | 3 |
| Pedro Martinez |   | sp | 32 | 2.65 | 18 | 8 | 0 | 33 | 33 | 1 | 1 | 220.2 | 170 | 83 | 65 | 78 | 234 | 21 | 11 |
| Julio Mateo | Buc | mr | 26 | 4.79 | 2 | 2 | 1 | 54 | 0 | 0 | 0 | 103.1 | 106 | 60 | 55 | 20 | 96 | 28 | 8 |
| Darrell May* | Mud | sp | 32 | 3.75 | 5 | 7 | 0 | 16 | 16 | 0 | 0 | 112.2 | 99 | 50 | 47 | 31 | 59 | 9 | 4 |
| Gil Meche | Zom | sp | 25 | 6.18 | 4 | 12 | 0 | 20 | 20 | 0 | 0 | 106.1 | 136 | 77 | 73 | 40 | 73 | 27 | 7 |
| Kent Mercker* | Lit | mr | 36 | 3.29 | 2 | 1 | 1 | 11 | 0 | 0 | 0 | 13.2 | 13 | 7 | 5 | 8 | 14 | 3 | 0 |
| Dan Miceli | Dyn | mr | 33 | 2.69 | 3 | 4 | 1 | 62 | 0 | 0 | 0 | 77.0 | 64 | 24 | 23 | 18 | 67 | 9 | 6 |
| Wade Miller | Can | sp | 27 | 4.85 | 13 | 9 | 0 | 32 | 32 | 0 | 0 | 194.2 | 204 | 111 | 105 | 78 | 139 | 23 | 15 |
| Kevin Millwood | Dev | sp | 29 | 4.94 | 11 | 11 | 0 | 36 | 36 | 1 | 0 | 217.0 | 236 | 137 | 119 | 74 | 159 | 31 | 16 |
| Matt Morris | Sea | sp | 29 | 5.99 | 5 | 7 | 0 | 18 | 18 | 0 | 0 | 97.2 | 130 | 67 | 65 | 20 | 65 | 19 | 9 |
| Guillermo Mota | Wil | mr | 30 | 1.64 | 7 | 3 | 4 | 66 | 0 | 0 | 0 | 93.1 | 69 | 18 | 17 | 37 | 85 | 2 | 8 |
| Jamie Moyer* | Sea | sp | 41 | 4.72 | 6 | 0 | 0 | 10 | 10 | 0 | 0 | 61.0 | 62 | 33 | 32 | 29 | 33 | 6 | 13 |
| Jamie Moyer* | Mud | sp | 41 | 6.00 | 2 | 6 | 0 | 17 | 17 | 0 | 0 | 96.0 | 127 | 70 | 64 | 30 | 62 | 15 | 6 |
| Jamie Moyer* |   | sp | 41 | 5.50 | 8 | 6 | 0 | 27 | 27 | 0 | 0 | 157.0 | 189 | 103 | 96 | 59 | 95 | 21 | 19 |
| Mark Mulder* | Wil | sp | 26 | 3.55 | 16 | 10 | 0 | 34 | 34 | 5 | 2 | 215.2 | 245 | 93 | 85 | 67 | 120 | 17 | 30 |
| Mike Mussina | Wil | sp | 35 | 4.46 | 3 | 1 | 0 | 5 | 5 | 0 | 0 | 34.1 | 31 | 17 | 17 | 7 | 35 | 8 | 0 |
| Mike Mussina | Sea | sp | 35 | 3.83 | 13 | 7 | 0 | 29 | 29 | 6 | 1 | 204.2 | 216 | 89 | 87 | 30 | 173 | 23 | 12 |
| Mike Mussina |   | sp | 35 | 3.92 | 16 | 8 | 0 | 34 | 34 | 6 | 1 | 239.0 | 247 | 106 | 104 | 37 | 208 | 31 | 12 |
| Joe Nathan | Dyn | mr | 29 | 3.90 | 5 | 3 | 28 | 60 | 0 | 0 | 0 | 67.0 | 70 | 32 | 29 | 46 | 71 | 8 | 4 |
| Jeff Nelson | Gan | mr | 37 | 6.94 | 1 | 1 | 0 | 17 | 0 | 0 | 0 | 23.1 | 29 | 19 | 18 | 8 | 21 | 9 | 1 |
| Hideo Nomo | Dev | sp | 35 | 6.01 | 6 | 14 | 0 | 35 | 35 | 1 | 0 | 202.0 | 220 | 145 | 135 | 102 | 160 | 40 | 14 |
| Tomo Ohka | Fis | sp | 28 | 4.53 | 14 | 12 | 0 | 32 | 32 | 2 | 0 | 214.1 | 250 | 120 | 108 | 49 | 116 | 29 | 26 |
| Russ Ortiz | Nor | sp | 30 | 4.24 | 22 | 8 | 0 | 36 | 36 | 2 | 1 | 235.2 | 222 | 119 | 111 | 93 | 136 | 29 | 17 |
| Roy Oswalt | Buc | sp | 26 | 4.71 | 8 | 11 | 0 | 24 | 24 | 2 | 0 | 156.2 | 170 | 86 | 82 | 32 | 131 | 27 | 9 |
| Vicente Padilla | Buc | sp | 26 | 4.96 | 12 | 12 | 0 | 32 | 32 | 4 | 1 | 203.1 | 220 | 119 | 112 | 69 | 100 | 34 | 22 |
| Chan Ho Park | Zom | sp | 31 | 3.12 | 0 | 3 | 0 | 7 | 0 | 0 | 0 | 8.2 | 5 | 4 | 3 | 7 | 7 | 0 | 1 |
| John Parrish* | Wil | mr | 26 | 1.84 | 2 | 2 | 1 | 17 | 0 | 0 | 0 | 29.1 | 25 | 9 | 6 | 12 | 19 | 0 | 2 |
| John Patterson | Buc | sp | 26 | 3.24 | 1 | 1 | 0 | 6 | 0 | 0 | 0 | 8.1 | 8 | 3 | 3 | 5 | 5 | 1 | 0 |
| Jake Peavy | Can | sp | 23 | 5.98 | 10 | 11 | 0 | 32 | 32 | 0 | 0 | 173.0 | 182 | 127 | 115 | 92 | 132 | 33 | 19 |
| Brad Penny | Buc | sp | 26 | 5.91 | 7 | 20 | 0 | 32 | 32 | 2 | 0 | 185.2 | 230 | 127 | 122 | 60 | 111 | 43 | 31 |
| Troy Percival | Wac | cl | 34 | 3.38 | 0 | 4 | 2 | 32 | 0 | 0 | 0 | 34.2 | 31 | 18 | 13 | 24 | 34 | 4 | 1 |
| Troy Percival | Zom | cl | 34 | 3.96 | 3 | 2 | 13 | 24 | 0 | 0 | 0 | 25.0 | 20 | 15 | 11 | 13 | 32 | 6 | 1 |
| Troy Percival |   | cl | 34 | 3.62 | 3 | 6 | 15 | 56 | 0 | 0 | 0 | 59.2 | 51 | 33 | 24 | 37 | 66 | 10 | 2 |
| Odalis Perez* | Spe | sp | 27 | 2.57 | 5 | 1 | 0 | 34 | 2 | 1 | 1 | 70.0 | 60 | 24 | 20 | 17 | 45 | 5 | 9 |
| Oliver Perez* | Zom | sp | 22 | 3.27 | 0 | 0 | 0 | 12 | 0 | 0 | 0 | 11.0 | 11 | 4 | 4 | 4 | 8 | 1 | 0 |
| Andy Pettitte* | Fis | sp | 32 | 5.50 | 9 | 11 | 0 | 33 | 33 | 0 | 0 | 196.1 | 246 | 124 | 120 | 56 | 165 | 41 | 18 |
| Joel Pineiro | Wac | sp | 25 | 4.49 | 11 | 11 | 0 | 34 | 34 | 3 | 0 | 212.1 | 222 | 112 | 106 | 84 | 157 | 30 | 19 |
| Dan Plesac* | Wac | mr | 42 | 2.56 | 2 | 1 | 0 | 36 | 0 | 0 | 0 | 38.2 | 35 | 13 | 11 | 13 | 46 | 2 | 0 |
| Sidney Ponson | Spe | sp | 27 | 5.07 | 15 | 12 | 0 | 33 | 33 | 6 | 1 | 229.0 | 254 | 138 | 129 | 75 | 143 | 31 | 28 |
| Mark Prior | Spe | sp | 23 | 3.47 | 20 | 9 | 0 | 33 | 33 | 4 | 0 | 225.1 | 237 | 105 | 87 | 53 | 238 | 23 | 7 |
| Paul Quantrill | Lit | mr | 35 | 2.76 | 6 | 5 | 13 | 81 | 0 | 0 | 0 | 91.1 | 92 | 34 | 28 | 24 | 54 | 7 | 16 |
| Brad Radke | Fis | sp | 31 | 5.14 | 0 | 0 | 0 | 22 | 0 | 0 | 0 | 35.0 | 40 | 20 | 20 | 9 | 15 | 8 | 2 |
| Horacio Ramirez* | Fis | sp | 24 | 4.78 | 7 | 14 | 0 | 32 | 32 | 1 | 0 | 205.1 | 204 | 117 | 109 | 96 | 93 | 25 | 23 |
| Stephen Randolph* | Lit | mr | 30 | 7.71 | 0 | 2 | 0 | 20 | 0 | 0 | 0 | 18.2 | 20 | 16 | 16 | 15 | 19 | 5 | 2 |
| Tim Redding | Lit | sp | 26 | 4.29 | 8 | 13 | 0 | 31 | 31 | 0 | 0 | 184.2 | 201 | 102 | 88 | 80 | 107 | 27 | 8 |
| Mark Redman* | Buc | sp | 30 | 4.40 | 9 | 10 | 0 | 33 | 33 | 6 | 3 | 216.2 | 235 | 111 | 106 | 75 | 157 | 32 | 20 |
| Arthur Rhodes* | Wil | mr | 34 | 1.50 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 6.0 | 4 | 1 | 1 | 2 | 5 | 1 | 0 |
| Juan Rincon | Dev | mr | 25 | 5.23 | 4 | 5 | 1 | 54 | 0 | 0 | 0 | 105.0 | 110 | 71 | 61 | 41 | 89 | 11 | 2 |
| Ricardo Rincon* | Wac | mr | 34 | 2.08 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 4.1 | 4 | 1 | 1 | 3 | 1 | 0 | 0 |
| David Riske | Sea | mr | 27 | 0.00 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 5.0 | 2 | 0 | 0 | 0 | 7 | 0 | 0 |
| David Riske |   | mr | 27 | 0.00 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 5.0 | 2 | 0 | 0 | 0 | 7 | 0 | 0 |
| Mariano Rivera | Buc | cl | 34 | 2.53 | 6 | 5 | 22 | 42 | 0 | 0 | 0 | 57.0 | 43 | 17 | 16 | 17 | 45 | 0 | 5 |
| Felix Rodriguez | Wil | mr | 31 | 14.73 | 0 | 1 | 0 | 3 | 0 | 0 | 0 | 3.2 | 6 | 6 | 6 | 4 | 4 | 2 | 0 |
| Francisco Rodriguez | Gan | mr | 22 | 3.21 | 4 | 4 | 2 | 70 | 0 | 0 | 0 | 95.1 | 49 | 37 | 34 | 52 | 111 | 15 | 6 |
| B.J. Ryan* | Dyn | mr | 28 | 5.80 | 3 | 3 | 2 | 50 | 0 | 0 | 0 | 49.2 | 53 | 32 | 32 | 40 | 57 | 4 | 4 |
| C.C. Sabathia* | Lit | sp | 23 | 5.64 | 4 | 14 | 0 | 33 | 33 | 3 | 0 | 202.2 | 221 | 139 | 127 | 74 | 131 | 40 | 22 |
| Johan Santana* | Wac | mr | 25 | 4.61 | 7 | 2 | 0 | 18 | 15 | 0 | 0 | 95.2 | 88 | 51 | 49 | 40 | 102 | 17 | 9 |
| Kazuhiro Sasaki | Gan | cl | 36 | 4.87 | 2 | 2 | 0 | 38 | 0 | 0 | 0 | 40.2 | 47 | 25 | 22 | 19 | 35 | 5 | 0 |
| Curt Schilling | Gan | sp | 37 | 3.95 | 11 | 12 | 0 | 31 | 30 | 0 | 0 | 207.1 | 202 | 105 | 91 | 74 | 239 | 20 | 6 |
| Jason Schmidt | Wac | sp | 31 | 3.81 | 17 | 13 | 0 | 35 | 35 | 6 | 3 | 248.0 | 218 | 118 | 105 | 58 | 257 | 34 | 9 |
| Scott Schoeneweis* | Can | mr | 30 | 2.82 | 3 | 2 | 1 | 42 | 0 | 0 | 0 | 60.2 | 62 | 21 | 19 | 16 | 61 | 4 | 3 |
| Scott Schoeneweis* | Spe | mr | 30 | 4.15 | 0 | 0 | 0 | 7 | 0 | 0 | 0 | 8.2 | 10 | 5 | 4 | 7 | 11 | 1 | 0 |
| Scott Schoeneweis* |   | mr | 30 | 2.99 | 3 | 2 | 1 | 49 | 0 | 0 | 0 | 69.1 | 72 | 26 | 23 | 23 | 72 | 5 | 3 |
| Jae Weong Seo | Gan | sp | 27 | 3.93 | 8 | 5 | 0 | 17 | 17 | 0 | 0 | 100.2 | 93 | 46 | 44 | 27 | 58 | 10 | 3 |
| Ben Sheets | Lit | sp | 25 | 5.67 | 8 | 11 | 0 | 25 | 25 | 1 | 0 | 150.2 | 208 | 103 | 95 | 39 | 82 | 30 | 10 |
| Scot Shields | Dev | mr | 28 | 4.59 | 8 | 7 | 0 | 22 | 22 | 0 | 0 | 131.1 | 133 | 77 | 67 | 42 | 100 | 14 | 16 |
| Brian Shouse* | Nor | mr | 35 | 6.19 | 1 | 2 | 1 | 24 | 0 | 0 | 0 | 32.0 | 42 | 25 | 22 | 7 | 13 | 3 | 3 |
| Paul Shuey | Can | mr | 33 | 4.79 | 1 | 4 | 1 | 40 | 0 | 0 | 0 | 56.1 | 53 | 32 | 30 | 30 | 55 | 9 | 10 |
| Carlos Silva | Buc | mr | 25 | 3.00 | 2 | 1 | 0 | 17 | 6 | 0 | 0 | 51.0 | 39 | 20 | 17 | 17 | 19 | 7 | 9 |
| John Smoltz | Spe | cl | 37 | 2.05 | 1 | 4 | 32 | 59 | 0 | 0 | 0 | 74.2 | 64 | 21 | 17 | 11 | 87 | 3 | 10 |
| Kyle Snyder | Dyn | sp | 26 | 7.30 | 5 | 8 | 0 | 16 | 16 | 1 | 0 | 90.0 | 108 | 77 | 73 | 38 | 39 | 22 | 8 |
| Rafael Soriano | Dev | mr | 24 | 3.25 | 6 | 3 | 28 | 48 | 0 | 0 | 0 | 63.2 | 59 | 25 | 23 | 9 | 87 | 5 | 2 |
| Justin Speier | Lit | mr | 30 | 5.74 | 1 | 4 | 1 | 25 | 0 | 0 | 0 | 26.2 | 29 | 19 | 17 | 14 | 22 | 4 | 0 |
| Tim Spooneybarger | Spe | mr | 24 | 2.09 | 4 | 3 | 2 | 35 | 0 | 0 | 0 | 51.2 | 43 | 14 | 12 | 9 | 43 | 3 | 3 |
| Jason Stanford* | Spe | sp | 27 | 3.92 | 0 | 0 | 0 | 10 | 0 | 0 | 0 | 20.2 | 20 | 10 | 9 | 5 | 17 | 3 | 0 |
| Ricky Stone | Mud | mr | 29 | 2.57 | 1 | 1 | 0 | 25 | 0 | 0 | 0 | 35.0 | 30 | 11 | 10 | 19 | 20 | 2 | 10 |
| Scott Sullivan | Gan | mr | 33 | 4.30 | 2 | 2 | 0 | 46 | 0 | 0 | 0 | 73.1 | 62 | 40 | 35 | 42 | 51 | 9 | 5 |
| Jeff Suppan | Mud | sp | 29 | 4.72 | 9 | 12 | 0 | 25 | 25 | 6 | 1 | 166.0 | 179 | 91 | 87 | 55 | 88 | 27 | 18 |
| Julian Tavarez | Wac | mr | 31 | 5.96 | 3 | 0 | 1 | 16 | 0 | 0 | 0 | 25.2 | 31 | 20 | 17 | 11 | 12 | 2 | 5 |
| Julian Tavarez | Zom | mr | 31 | 6.91 | 1 | 3 | 0 | 10 | 0 | 0 | 0 | 14.1 | 21 | 13 | 11 | 5 | 3 | 0 | 2 |
| Julian Tavarez |   | mr | 31 | 6.30 | 4 | 3 | 1 | 26 | 0 | 0 | 0 | 40.0 | 52 | 33 | 28 | 16 | 15 | 2 | 7 |
| John Thomson | Sea | sp | 30 | 4.48 | 16 | 11 | 0 | 35 | 35 | 1 | 1 | 217.0 | 246 | 121 | 108 | 47 | 144 | 28 | 25 |
| Mike Timlin | Nor | mr | 38 | 2.37 | 9 | 2 | 6 | 72 | 0 | 0 | 0 | 98.2 | 89 | 28 | 26 | 10 | 76 | 8 | 6 |
| Josh Towers | Dev | sp | 27 | 4.63 | 0 | 1 | 0 | 10 | 0 | 0 | 0 | 23.1 | 21 | 13 | 12 | 3 | 8 | 2 | 5 |
| Steve Trachsel | Fis | sp | 33 | 3.89 | 12 | 13 | 0 | 32 | 32 | 0 | 0 | 203.2 | 197 | 98 | 88 | 52 | 94 | 27 | 10 |
| Derrick Turnbow | Wac | mr | 26 | 1.96 | 0 | 1 | 6 | 15 | 0 | 0 | 0 | 18.1 | 14 | 5 | 4 | 4 | 18 | 0 | 3 |
| Ugueth Urbina | Can | cl | 30 | 3.78 | 5 | 5 | 24 | 52 | 0 | 0 | 0 | 66.2 | 46 | 30 | 28 | 33 | 59 | 7 | 1 |
| Jose Valverde | Wil | mr | 24 | 3.48 | 1 | 1 | 2 | 30 | 0 | 0 | 0 | 41.1 | 25 | 16 | 16 | 25 | 60 | 7 | 4 |
| Claudio Vargas | Lit | sp | 26 | 4.02 | 9 | 4 | 0 | 22 | 16 | 0 | 0 | 116.1 | 106 | 53 | 52 | 35 | 51 | 17 | 9 |
| Javier Vazquez | Can | sp | 27 | 4.61 | 11 | 10 | 0 | 27 | 27 | 3 | 1 | 179.2 | 182 | 96 | 92 | 66 | 194 | 25 | 7 |
| Javier Vazquez | Sea | sp | 27 | 2.72 | 5 | 2 | 0 | 7 | 7 | 1 | 0 | 49.2 | 41 | 15 | 15 | 14 | 43 | 2 | 1 |
| Javier Vazquez |   | sp | 27 | 4.20 | 16 | 12 | 0 | 34 | 34 | 4 | 1 | 229.1 | 223 | 111 | 107 | 80 | 237 | 27 | 8 |
| Oscar Villarreal | Wac | mr | 22 | 3.15 | 6 | 2 | 1 | 44 | 0 | 0 | 0 | 60.0 | 48 | 26 | 21 | 24 | 52 | 8 | 8 |
| Oscar Villarreal | Zom | mr | 22 | 3.29 | 2 | 2 | 2 | 29 | 0 | 0 | 0 | 41.0 | 32 | 18 | 15 | 21 | 34 | 4 | 4 |
| Oscar Villarreal |   | mr | 22 | 3.21 | 8 | 4 | 3 | 73 | 0 | 0 | 0 | 101.0 | 80 | 44 | 36 | 45 | 86 | 12 | 12 |
| Doug Waechter | Lit | sp | 23 | 5.86 | 1 | 5 | 0 | 6 | 6 | 1 | 0 | 35.1 | 35 | 24 | 23 | 20 | 26 | 8 | 2 |
| Billy Wagner* | Gan | cl | 32 | 2.96 | 10 | 5 | 16 | 65 | 0 | 0 | 0 | 85.0 | 61 | 29 | 28 | 14 | 78 | 8 | 3 |
| Ryan Wagner | Sea | mr | 21 | 14.21 | 1 | 2 | 0 | 7 | 0 | 0 | 0 | 6.1 | 5 | 10 | 10 | 12 | 9 | 2 | 0 |
| Tim Wakefield | Gan | sp | 37 | 5.11 | 12 | 15 | 0 | 33 | 33 | 0 | 0 | 193.2 | 185 | 122 | 110 | 81 | 152 | 32 | 10 |
| Jamie Walker* | Mud | mr | 32 | 4.56 | 2 | 6 | 0 | 46 | 0 | 0 | 0 | 53.1 | 55 | 29 | 27 | 14 | 34 | 5 | 5 |
| Jarrod Washburn* | Wil | sp | 29 | 5.29 | 3 | 4 | 0 | 14 | 14 | 0 | 0 | 81.2 | 100 | 55 | 48 | 28 | 47 | 17 | 2 |
| Dave Weathers | Lit | mr | 34 | 3.35 | 6 | 6 | 7 | 80 | 0 | 0 | 0 | 88.2 | 86 | 35 | 33 | 44 | 61 | 3 | 8 |
| Jeff Weaver | Mud | sp | 27 | 10.61 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 9.1 | 20 | 13 | 11 | 8 | 4 | 2 | 3 |
| Brandon Webb | Nor | sp | 25 | 4.02 | 18 | 6 | 0 | 33 | 33 | 2 | 1 | 221.2 | 223 | 104 | 99 | 86 | 200 | 27 | 17 |
| Ben Weber | Wil | mr | 34 | 2.81 | 4 | 0 | 2 | 41 | 0 | 0 | 0 | 64.0 | 69 | 21 | 20 | 9 | 44 | 7 | 7 |
| Todd Wellemeyer | Buc | mr | 25 | 4.58 | 0 | 2 | 9 | 14 | 0 | 0 | 0 | 19.2 | 15 | 10 | 10 | 8 | 25 | 3 | 1 |
| David Wells* | Dyn | sp | 41 | 4.42 | 12 | 11 | 0 | 32 | 32 | 4 | 0 | 217.2 | 280 | 121 | 107 | 19 | 93 | 32 | 28 |
| Kip Wells | Dev | sp | 27 | 5.24 | 13 | 10 | 0 | 34 | 34 | 2 | 0 | 195.2 | 203 | 128 | 114 | 92 | 135 | 38 | 20 |
| Turk Wendell | Can | mr | 37 | 3.21 | 0 | 0 | 0 | 14 | 0 | 0 | 0 | 14.0 | 14 | 6 | 5 | 7 | 3 | 1 | 1 |
| Dan Wheeler | Sea | mr | 26 | 3.86 | 3 | 0 | 2 | 27 | 0 | 0 | 0 | 63.0 | 64 | 28 | 27 | 19 | 28 | 13 | 5 |
| Jerome Williams | Wil | sp | 22 | 3.57 | 2 | 2 | 0 | 5 | 5 | 0 | 0 | 35.1 | 30 | 14 | 14 | 12 | 16 | 3 | 5 |
| Jerome Williams | Sea | sp | 22 | 5.62 | 6 | 3 | 0 | 11 | 11 | 0 | 0 | 65.2 | 80 | 43 | 41 | 20 | 46 | 8 | 4 |
| Jerome Williams |   | sp | 22 | 4.90 | 8 | 5 | 0 | 16 | 16 | 0 | 0 | 101.0 | 110 | 57 | 55 | 32 | 62 | 11 | 9 |
| Woody Williams | Fis | sp | 37 | 4.88 | 9 | 12 | 0 | 33 | 33 | 1 | 0 | 195.2 | 213 | 108 | 106 | 59 | 107 | 32 | 6 |
| Scott Williamson | Nor | cl | 28 | 6.14 | 2 | 2 | 0 | 18 | 0 | 0 | 0 | 22.0 | 24 | 17 | 15 | 15 | 23 | 3 | 1 |
| Scott Williamson | Zom | cl | 28 | 0.00 | 0 | 0 | 1 | 7 | 0 | 0 | 0 | 8.1 | 3 | 0 | 0 | 4 | 12 | 0 | 0 |
| Scott Williamson |   | cl | 28 | 4.45 | 2 | 2 | 1 | 25 | 0 | 0 | 0 | 30.1 | 27 | 17 | 15 | 19 | 35 | 3 | 1 |
| Dontrelle Willis* | Sea | sp | 22 | 4.12 | 10 | 7 | 0 | 28 | 28 | 0 | 0 | 170.1 | 156 | 86 | 78 | 68 | 159 | 19 | 21 |
| Randy Wolf* | Nor | sp | 27 | 6.36 | 4 | 6 | 0 | 15 | 15 | 1 | 0 | 80.2 | 108 | 62 | 57 | 40 | 59 | 21 | 11 |
| Kerry Wood | Buc | sp | 27 | 4.06 | 13 | 7 | 0 | 26 | 26 | 1 | 1 | 166.1 | 135 | 81 | 75 | 79 | 219 | 28 | 5 |
| Tim Worrell | Fis | cl | 36 | 3.88 | 4 | 3 | 25 | 50 | 0 | 0 | 0 | 53.1 | 48 | 23 | 23 | 21 | 38 | 8 | 4 |
| Kelly Wunsch* | Wac | mr | 31 | 2.68 | 5 | 3 | 3 | 38 | 0 | 0 | 0 | 43.2 | 29 | 14 | 13 | 26 | 36 | 3 | 2 |
| Carlos Zambrano | Mud | sp | 23 | 3.79 | 13 | 13 | 0 | 34 | 34 | 3 | 1 | 225.1 | 218 | 109 | 95 | 93 | 173 | 19 | 24 |
| Victor Zambrano | Zom | sp | 28 | 0.93 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 9.2 | 5 | 1 | 1 | 7 | 7 | 0 | 0 |
| Barry Zito* | Wac | sp | 26 | 4.00 | 7 | 6 | 0 | 20 | 20 | 2 | 1 | 126.0 | 103 | 66 | 56 | 72 | 76 | 15 | 11 |
| Barry Zito* | Zom | sp | 26 | 3.65 | 5 | 5 | 0 | 13 | 13 | 1 | 1 | 88.2 | 80 | 43 | 36 | 32 | 46 | 9 | 7 |
| Barry Zito* |   | sp | 26 | 3.86 | 12 | 11 | 0 | 33 | 33 | 3 | 2 | 214.2 | 183 | 109 | 92 | 104 | 122 | 24 | 18 |
| Secondary |
| Name | Team | P | Age | SB | CS | IW | HBP | WP | BK | SH | SF | H/9 | BB/9 | R/9 | K/9 | HR/9 | K/BB | WHIP |
| Terry Adams | Dyn | mr | 31 | 1 | 2 | 0 | 1 | 6 | 0 | 0 | 1 | 10.0 | 3.2 | 13.3 | 6.4 | 0.4 | 2.0 | 1.47 |
| Jeremy Affeldt* | Dev | sp | 25 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 6.7 | 4.1 | 11.1 | 7.0 | 1.0 | 1.7 | 1.20 |
| Kurt Ainsworth | Nor | sp | 25 | 1 | 2 | 0 | 2 | 1 | 0 | 0 | 0 | 12.2 | 1.8 | 14.5 | 6.0 | 1.6 | 3.3 | 1.56 |
| Wilson Alvarez* | Dev | sp | 34 | 0 | 3 | 2 | 6 | 0 | 0 | 0 | 4 | 8.9 | 2.4 | 11.8 | 6.3 | 0.6 | 2.7 | 1.25 |
| Brian Anderson* | Mud | sp | 32 | 10 | 2 | 1 | 7 | 5 | 1 | 1 | 3 | 11.7 | 2.4 | 14.5 | 3.2 | 2.2 | 1.3 | 1.57 |
| Tony Armas | Buc | sp | 26 | 2 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 5.9 | 2.6 | 8.6 | 5.9 | 0.7 | 2.3 | 0.95 |
| Bronson Arroyo | Spe | mr | 27 | 0 | 0 | |