| C(1B) | Garver, M.Garver, Mitch $ >> | 28 | 2019 | R | 71 | 64 | 74 | 93 | .273 | .367 | .630 | .997 | .310 | 311 | 70 | 85 | 16 | 1 | 31 | 67 | 41 | 87 | 5 | 0 | .992 | - | +0.5 | 2 | +4 | 5 | C |
| C(1B) | Montero, M.Montero, Miguel >> | 29 | 2012 | L | 76 | 62 | 82 | 141 | .286 | .392 | .438 | .830 | .340 | 486 | 65 | 139 | 25 | 2 | 15 | 88 | 73 | 130 | 12 | 0 | .992 | + | +0.84 | 2 | +4.09 | 10 | C |
| 1B(3B) | Freese, D.Freese, David >> | 36 | 2019 | R | 91 | 93 | 46 | 79 | .315 | .403 | .599 | 1.002 | .350 | 162 | 35 | 51 | 13 | 0 | 11 | 29 | 23 | 44 | 1 | 0 | .993 | - | -0.4 | 1 | +1.5 | 5 | C |
| 1B(DH) | Teixeira, M.Teixeira, Mark >> | 35 | 2015 | S | 54 | 49 | 67 | 111 | .255 | .361 | .548 | .909 | .310 | 392 | 57 | 100 | 22 | 0 | 31 | 79 | 59 | 85 | 6 | 2 | .997 | - | -0.07 | 2 | +3.32 | 5 | C |
| 2B(IF) | Pedroia, D.Pedroia, Dustin >> | 28 | 2011 | R | 90 | 76 | 96 | 159 | .307 | .391 | .474 | .865 | .330 | 635 | 102 | 195 | 37 | 3 | 21 | 91 | 86 | 85 | 1 | 26 | .990 | - | +2.33 | 6 | +6.08 | 56 | C |
| 3B(IF) | Seager, K.Seager, Kyle >> | 28 | 2016 | L | 57 | 52 | 68 | 158 | .278 | .361 | .499 | .860 | .300 | 597 | 89 | 166 | 36 | 3 | 30 | 99 | 69 | 108 | 8 | 3 | .956 | - | +1.91 | 3 | +5.26 | 42 | C |
| 3B(OF) | Bryant, K.Bryant, Kris $ >> | 24 | 2016 | R | 78 | 78 | 51 | 155 | .292 | .386 | .554 | .940 | .330 | 603 | 121 | 176 | 35 | 3 | 39 | 102 | 75 | 154 | 18 | 8 | .966 | - | +0.78 | 4 | +6.61 | 25 | C |
| SS(IF) | Anderson, T.Anderson, Tim >> | 26 | 2019 | R | 59 | 71 | 21 | 123 | .335 | .359 | .508 | .867 | .300 | 498 | 81 | 167 | 32 | 0 | 18 | 56 | 15 | 109 | 3 | 17 | .951 | - | -0.1 | 5 | +4.8 | 6 | C |
| OF(2B) | Betts, M.Betts, Mookie >> | 25 | 2018 | R | 100 | 100 | 99 | 136 | .346 | .442 | .640 | 1.082 | .390 | 520 | 129 | 180 | 47 | 5 | 32 | 80 | 81 | 91 | 8 | 30 | .996 | - | +1.8 | 7 | +8.7 | 8 | C |
| OF(OF) | Gardner, B.Gardner, Brett >> | 27 | 2010 | L | 68 | 43 | 100 | 150 | .277 | .385 | .379 | .764 | .330 | 477 | 97 | 132 | 20 | 7 | 5 | 47 | 79 | 101 | 5 | 47 | .997 | - | +3.34 | 9 | +3.57 | 16 | C |
| OF(OF) | Ozuna, M.Ozuna, Marcell >> | 26 | 2017 | R | 80 | 81 | 58 | 159 | .312 | .377 | .548 | .925 | .320 | 613 | 93 | 191 | 30 | 2 | 37 | 124 | 64 | 144 | 0 | 1 | .985 | - | +0.35 | 2 | +4.76 | 56 | C |
| OF(OF) | Rasmus, C.Rasmus, Colby >> | 23 | 2010 | L | 47 | 53 | 25 | 144 | .276 | .364 | .498 | .862 | .310 | 464 | 85 | 128 | 28 | 3 | 23 | 66 | 63 | 148 | 1 | 12 | .981 | - | -0.42 | 5 | +4.25 | 11 | C |