| C(1B) | Barrett, M.Barrett, Michael >> | 28 | 2004 | R | 73 | 78 | 59 | 134 | .287 | .342 | .489 | .831 | .330 | 456 | 55 | 131 | 32 | 6 | 16 | 65 | 33 | 64 | 5 | 1 | .994 | - | -0.19 | 4 | 11 | 8 | C |
| C(DH) | Mirabelli, D.Mirabelli, Doug >> | 34 | 2004 | R | 93 | 90 | 66 | 59 | .281 | .368 | .525 | .893 | .360 | 160 | 27 | 45 | 12 | 0 | 9 | 32 | 19 | 46 | 3 | 0 | .993 | - | +0.01 | 1 | 16 | 5 | C |
| 1B(DH) | Morneau, J.Morneau, Justin >> | 23 | 2004 | L | 64 | 72 | 46 | 74 | .271 | .342 | .536 | .878 | .330 | 280 | 39 | 76 | 17 | 0 | 19 | 58 | 28 | 54 | 2 | 0 | .995 | - | -0.48 | 1 | 16 | 5 | C |
| 1B(DH) | Delgado, C.Delgado, Carlos >> | 32 | 2004 | L | 94 | 86 | 66 | 128 | .269 | .380 | .535 | .915 | .370 | 458 | 74 | 123 | 26 | 0 | 32 | 99 | 69 | 115 | 13 | 0 | .996 | - | -0.07 | 1 | 15 | 7 | C |
| 2B(IF) | Giles, M.Giles, Marcus >> | 26 | 2004 | R | 99 | 96 | 74 | 102 | .311 | .384 | .443 | .827 | .370 | 379 | 61 | 118 | 22 | 2 | 8 | 48 | 36 | 70 | 9 | 17 | .975 | - | +0.89 | 6 | 9 | 6 | C |
| 2B(SS) | Jimenez, D.Jimenez, D'Angelo >> | 27 | 2004 | S | 86 | 61 | 98 | 152 | .270 | .365 | .394 | .759 | .350 | 563 | 76 | 152 | 28 | 3 | 12 | 67 | 82 | 99 | 2 | 13 | .990 | - | +1.53 | 5 | 9 | 18 | C |
| 3B(IF) | Castilla, V.Castilla, Vinny >> | 37 | 2004 | R | 72 | 66 | 86 | 148 | .271 | .336 | .535 | .871 | .320 | 583 | 93 | 158 | 43 | 3 | 35 | 131 | 51 | 113 | 6 | 0 | .987 | - | +0.79 | 2 | 14 | 14 | C |
| SS(IF) | Garciaparra, N.Garciaparra, Nomar >> | 31 | 2004 | R | 84 | 92 | 10 | 81 | .308 | .368 | .477 | .845 | .360 | 321 | 52 | 99 | 21 | 3 | 9 | 41 | 24 | 30 | 6 | 4 | .970 | - | -0.75 | 4 | 10 | 5 | C |
| SS(IF) | Crosby, B.Crosby, Bobby >> | 24 | 2004 | R | 38 | 29 | 81 | 151 | .239 | .322 | .426 | .748 | .310 | 545 | 70 | 130 | 34 | 1 | 22 | 64 | 58 | 141 | 9 | 7 | .975 | - | +1.43 | 3 | 11 | 17 | C |
| OF(OF) | Rivera, J.Rivera, Juan >> | 26 | 2004 | R | 95 | 90 | 75 | 134 | .307 | .364 | .465 | .829 | .350 | 391 | 48 | 120 | 24 | 1 | 12 | 49 | 34 | 45 | 1 | 6 | .986 | - | +0.51 | 3 | 11 | 8 | C |