| C(DH) | Mirabelli, D.Mirabelli, Doug >> | 34 | 2004 | R | 85 | 80 | 71 | 59 | .281 | .368 | .525 | .893 | .330 | 160 | 27 | 45 | 12 | 0 | 9 | 32 | 19 | 46 | 3 | 0 | .993 | - | +0.01 | 1 | +1.47 | 5 | U |
| C(DH) | Varitek, J.Varitek, Jason >> | 32 | 2004 | S | 98 | 89 | 99 | 137 | .296 | .391 | .482 | .873 | .360 | 463 | 67 | 137 | 30 | 1 | 18 | 73 | 62 | 126 | 10 | 10 | .998 | - | +0.85 | 4 | +3.91 | 8 | U |
| 1B(OF) | Millar, K.Millar, Kevin >> | 33 | 2004 | R | 82 | 87 | 30 | 150 | .297 | .387 | .474 | .861 | .350 | 508 | 74 | 151 | 36 | 0 | 18 | 74 | 57 | 91 | 17 | 1 | .986 | - | -0.56 | 1 | +2.6 | 16 | U |
| 1B(3B) | Merloni, L.Merloni, Lou >> | 33 | 2004 | R | 62 | 63 | 49 | 71 | .289 | .348 | .426 | .774 | .310 | 190 | 25 | 55 | 12 | 1 | 4 | 28 | 14 | 41 | 3 | 1 | .989 | - | -0.19 | 3 | +0.66 | 5 | U |
| 1B(OF) | McCarty, D.McCarty, David >> | 35 | 2004 | R | 42 | 38 | 60 | 89 | .258 | .329 | .404 | .733 | .300 | 151 | 24 | 39 | 8 | 1 | 4 | 17 | 14 | 40 | 2 | 1 | .991 | - | -0.15 | 3 | +0.07 | 5 | C |
| 2B(1B) | Walker, T.Walker, Todd >> | 31 | 2004 | L | 56 | 68 | 12 | 129 | .274 | .356 | .468 | .824 | .320 | 372 | 60 | 102 | 19 | 4 | 15 | 50 | 43 | 52 | 4 | 0 | .982 | - | -0.88 | 3 | +1.65 | 7 | U |
| 2B(SS) | Jackson, D.Jackson, Damian >> | 31 | 2003 | R | 18 | 22 | 44 | 109 | .261 | .296 | .323 | .619 | .260 | 161 | 34 | 42 | 7 | 0 | 1 | 13 | 8 | 28 | 0 | 16 | .951 | - | +0.16 | 8 | -0.21 | 5 | U |
| 3B(2B) | Mueller, B.Mueller, Bill >> | 33 | 2003 | S | 94 | 98 | 45 | 146 | .323 | .394 | .536 | .930 | .360 | 524 | 81 | 169 | 45 | 5 | 19 | 82 | 55 | 78 | 7 | 1 | .957 | - | +0.18 | 3 | +5.63 | 12 | U |
| 3B(DH) | Youkilis, K.Youkilis, Kevin >> | 25 | 2004 | R | 69 | 59 | 64 | 72 | .260 | .371 | .413 | .784 | .340 | 208 | 38 | 54 | 11 | 0 | 7 | 35 | 33 | 45 | 4 | 0 | .968 | - | +0.63 | 1 | +0.92 | 5 | C |
| SS(IF) | Garciaparra, N.Garciaparra, Nomar >> | 31 | 2003 | R | 83 | 81 | 77 | 156 | .301 | .350 | .524 | .874 | .320 | 658 | 120 | 198 | 37 | 13 | 28 | 105 | 39 | 61 | 11 | 19 | .971 | - | +1.42 | 7 | +5.53 | 29 | U |
| OF(OF) | Kapler, G.Kapler, Gabe >> | 29 | 2004 | R | 30 | 36 | 36 | 136 | .272 | .313 | .390 | .703 | .280 | 290 | 51 | 79 | 14 | 1 | 6 | 33 | 15 | 49 | 2 | 5 | .978 | - | -0.19 | 4 | -0.02 | 8 | U |
| OF(DH) | Damon, J.Damon, Johnny >> | 31 | 2004 | L | 81 | 89 | 23 | 150 | .304 | .382 | .477 | .859 | .350 | 621 | 123 | 189 | 35 | 6 | 20 | 94 | 76 | 71 | 2 | 19 | .986 | - | -0.65 | 6 | +5.17 | 16 | U |
| OF(DH) | Ramirez, M.Ramirez, Manny >> | 32 | 2003 | R | 91 | 99 | 6 | 154 | .325 | .430 | .587 | 1.017 | .400 | 569 | 117 | 185 | 36 | 1 | 37 | 104 | 97 | 94 | 8 | 3 | .982 | - | -1.59 | 2 | +6.22 | 22 | U |