| C(1B) | Posey, B.Posey, Buster † # >> | 31 | 2018 | R | 96 | 83 | 99 | 105 | .284 | .361 | .382 | .743 | .340 | 398 | 47 | 113 | 22 | 1 | 5 | 41 | 45 | 53 | 3 | 3 | .998 | - | +1.5 | 2 | +1.9 | 6 | C |
| 1B(C) | Garcia, A.Garcia, Aramis + >> | 25 | 2018 | R | 66 | 71 | 52 | 19 | .286 | .308 | .492 | .800 | .290 | 63 | 8 | 18 | 1 | 0 | 4 | 9 | 2 | 31 | 0 | 0 | .993 | - | 0 | 1 | +0.3 | 4 | C |
| 3B(1B) | Sandoval, P.Sandoval, Pablo >> | 32 | 2018 | S | 43 | 54 | 20 | 92 | .248 | .311 | .417 | .728 | .290 | 230 | 22 | 57 | 10 | 1 | 9 | 40 | 19 | 52 | 2 | 0 | .986 | - | -0.6 | 2 | +0.5 | 5 | C |
| SS(IF) | Crawford, B.Crawford, Brandon >> | 31 | 2018 | L | 71 | 61 | 83 | 151 | .254 | .328 | .394 | .722 | .310 | 531 | 63 | 135 | 28 | 2 | 14 | 54 | 50 | 122 | 8 | 4 | .975 | - | +1.5 | 3 | +2 | 17 | C |
| OF(3B) | Bautista, J.Bautista, Jose >> | 38 | 2018 | R | 51 | 53 | 11 | 122 | .203 | .349 | .378 | .727 | .330 | 325 | 52 | 66 | 18 | 0 | 13 | 48 | 67 | 111 | 6 | 4 | .979 | + | -0.6 | 2 | +1.7 | 6 | C |
| OF(OF) | Duggar, S.Duggar, Steven + >> | 24 | 2018 | L | 54 | 52 | 70 | 41 | .255 | .305 | .390 | .695 | .290 | 141 | 20 | 36 | 11 | 1 | 2 | 17 | 10 | 44 | 0 | 5 | .979 | - | +0.5 | 6 | +0.7 | 4 | C |
| OF(1B) | Duvall, A.Duvall, Adam # >> | 29 | 2018 | R | 33 | 23 | 95 | 138 | .195 | .275 | .365 | .640 | .260 | 384 | 48 | 75 | 20 | 0 | 15 | 61 | 37 | 117 | 5 | 2 | .992 | + | +1.3 | 2 | -0.9 | 9 | C |
| OF(OF) | Williamson, M.Williamson, Mac >> | 27 | 2018 | R | 43 | 33 | 86 | 28 | .213 | .295 | .383 | .678 | .280 | 94 | 14 | 20 | 4 | 0 | 4 | 11 | 11 | 27 | 0 | 1 | 1.000 | - | +0.2 | 2 | +0.2 | 4 | C |
| OF(1B) | Slater, A.Slater, Austin >> | 25 | 2018 | R | 58 | 54 | 50 | 74 | .251 | .335 | .307 | .642 | .320 | 199 | 21 | 50 | 6 | 1 | 1 | 23 | 20 | 69 | 5 | 7 | .984 | - | 0 | 5 | -0.1 | 5 | C |