| C(1B) | Matheny, M.Matheny, Mike >> | 33 | 2003 | R | 25 | 13 | 86 | 141 | .252 | .322 | .356 | .678 | .280 | 441 | 43 | 111 | 18 | 2 | 8 | 47 | 44 | 81 | 2 | 1 | 1.000 | - | +0.42 | 2 | +0.38 | 10 | C |
| C(DH) | Varitek, J.Varitek, Jason >> | 31 | 2003 | S | 68 | 61 | 71 | 142 | .273 | .356 | .512 | .868 | .320 | 451 | 63 | 123 | 31 | 1 | 25 | 85 | 51 | 106 | 7 | 3 | .990 | - | +0.41 | 2 | +3.41 | 10 | C |
| 1B(DH) | Delgado, C.Delgado, Carlos >> | 31 | 2003 | L | 89 | 96 | 21 | 161 | .302 | .430 | .593 | 1.023 | .390 | 570 | 117 | 172 | 38 | 1 | 42 | 145 | 109 | 137 | 19 | 0 | .993 | - | -1.5 | 2 | +6.46 | 164 | C |
| 2B(3B) | Polanco, P.Polanco, Placido >> | 28 | 2003 | R | 74 | 59 | 97 | 122 | .289 | .354 | .447 | .801 | .320 | 492 | 87 | 142 | 30 | 3 | 14 | 63 | 42 | 38 | 8 | 14 | .989 | - | +1.78 | 5 | +3.05 | 6 | C |
| 2B(IF) | Soriano, A.Soriano, Alfonso # >> | 27 | 2003 | R | 60 | 62 | 47 | 156 | .290 | .339 | .525 | .864 | .300 | 682 | 114 | 198 | 36 | 5 | 38 | 91 | 38 | 130 | 12 | 35 | .975 | - | +0.23 | 7 | +5.55 | 29 | C |
| 3B(DH) | Lowell, M.Lowell, Mike >> | 29 | 2003 | R | 58 | 65 | 20 | 130 | .276 | .354 | .530 | .884 | .320 | 492 | 76 | 136 | 27 | 1 | 32 | 105 | 56 | 78 | 3 | 3 | .973 | - | -0.36 | 2 | +3.23 | 7 | C |
| 3B(IF) | Burroughs, S.Burroughs, Sean >> | 23 | 2003 | L | 50 | 51 | 31 | 146 | .286 | .355 | .402 | .757 | .320 | 517 | 62 | 148 | 27 | 6 | 7 | 58 | 44 | 75 | 11 | 7 | .966 | - | -0.02 | 5 | +2.19 | 12 | C |
| SS(IF) | Cabrera, O.Cabrera, Orlando >> | 29 | 2003 | R | 70 | 67 | 70 | 162 | .297 | .352 | .460 | .812 | .310 | 626 | 95 | 186 | 47 | 2 | 17 | 80 | 52 | 64 | 1 | 24 | .975 | - | +1.05 | 5 | +3.39 | 200 | C |
| OF(DH) | Bradley, M.Bradley, Milton >> | 25 | 2003 | S | 99 | 98 | 70 | 101 | .321 | .426 | .501 | .927 | .390 | 377 | 61 | 121 | 34 | 2 | 10 | 56 | 64 | 73 | 5 | 17 | .992 | - | +0.26 | 6 | +3.93 | 6 | C |
| OF(OF) | Ordonez, M.Ordonez, Magglio >> | 29 | 2003 | R | 96 | 94 | 74 | 160 | .317 | .382 | .546 | .928 | .340 | 606 | 95 | 192 | 46 | 3 | 29 | 99 | 57 | 73 | 7 | 9 | .994 | - | +0.22 | 4 | +4.76 | 83 | C |
| OF(DH) | Williams, B.Williams, Bernie >> | 35 | 2003 | S | 50 | 48 | 31 | 119 | .263 | .368 | .411 | .779 | .330 | 445 | 77 | 117 | 19 | 1 | 15 | 64 | 71 | 61 | 3 | 5 | .997 | - | -1.39 | 3 | +2.62 | 6 | C |
| OF(OF) | Pierre, J.Pierre, Juan >> | 26 | 2003 | L | 78 | 59 | 96 | 162 | .305 | .363 | .373 | .736 | .320 | 668 | 100 | 204 | 28 | 7 | 1 | 41 | 55 | 35 | 5 | 65 | .993 | - | +1.1 | 8 | +2.61 | 200 | C |