Team fielding -- 16 Back Bay Brawlers
Regular season -- as of 9/13/2017
| Primary |
| Pos | S | Name | G | GS | INN | PO | A | E | DP | TC | PCT | PB | SB | CS | SB% | PK |
| p | | Josh Tomlin | 31 | 31 | 209.7 | 20 | 30 | 4 | 2 | 54 | .926 | | 7 | 6 | .538 | 1 |
| | | Edinson Volquez | 32 | 32 | 194.0 | 14 | 19 | 0 | 1 | 33 | 1.000 | | 22 | 5 | .815 | 1 |
| | | Jeremy Hellickson | 33 | 33 | 215.0 | 8 | 21 | 0 | 0 | 29 | 1.000 | | 12 | 4 | .750 | 2 |
| | | R.A. Dickey | 32 | 32 | 174.0 | 5 | 21 | 2 | 2 | 28 | .929 | | 17 | 6 | .739 | 2 |
| | | Jon Lester | 31 | 31 | 178.0 | 9 | 19 | 0 | 0 | 28 | 1.000 | | 35 | 2 | .946 | 2 |
| | | Pedro Baez | 64 | 1 | 79.0 | 7 | 6 | 5 | 0 | 18 | .722 | | 5 | 5 | .500 | 0 |
| | | Mark Melancon | 51 | 0 | 71.3 | 3 | 11 | 1 | 1 | 15 | .933 | | 7 | 1 | .875 | 1 |
| | | Matt Barnes | 55 | 0 | 62.3 | 4 | 8 | 1 | 1 | 13 | .923 | | 14 | 4 | .778 | 3 |
| | | Justin Grimm | 54 | 0 | 60.7 | 5 | 7 | 0 | 0 | 12 | 1.000 | | 5 | 2 | .714 | 1 |
| | | Drew Storen | 34 | 0 | 40.7 | 5 | 5 | 2 | 1 | 12 | .833 | | 2 | 1 | .667 | 0 |
| | | Huston Street | 54 | 1 | 58.0 | 3 | 8 | 0 | 0 | 11 | 1.000 | | 5 | 0 | 1.000 | 0 |
| | | Jason Hammel | 30 | 1 | 57.0 | 6 | 4 | 0 | 0 | 10 | 1.000 | | 4 | 0 | 1.000 | 0 |
| | | Jordan Lyles | 42 | 0 | 57.7 | 1 | 5 | 2 | 2 | 8 | .750 | | 8 | 4 | .667 | 0 |
| | | Total | 543 | 162 | 1457.3 | 90 | 164 | 17 | 10 | 271 | .937 | | 143 | 40 | .781 | 13 |
| | | | | | | | | | | | | | | | | |
| c | | Jeff Mathis | 111 | 110 | 842.0 | 746 | 35 | 10 | 1 | 791 | .987 | 2 | 83 | 22 | .790 | 0 |
| | | Jonathan Lucroy | 126 | 52 | 606.3 | 549 | 26 | 6 | 0 | 581 | .990 | 7 | 60 | 18 | .769 | 0 |
| | | Chris Carter | 1 | 0 | 5.0 | 3 | 0 | 0 | 0 | 3 | 1.000 | 0 | 0 | 0 | .000 | 0 |
| | | Lorenzo Cain | 1 | 0 | 4.0 | 2 | 0 | 0 | 0 | 2 | 1.000 | 0 | 0 | 0 | .000 | 0 |
| | | Total | 239 | 162 | 1457.3 | 1300 | 61 | 16 | 1 | 1377 | .988 | 9 | 143 | 40 | .781 | 0 |
| | | | | | | | | | | | | | | | | |
| 1b | | Justin Smoak | 116 | 110 | 989.0 | 967 | 70 | 3 | 88 | 1040 | .997 | | | | | |
| | | Sean Rodriguez | 45 | 45 | 394.0 | 383 | 23 | 2 | 34 | 408 | .995 | | | | | |
| | | Chris Carter | 6 | 4 | 40.3 | 42 | 4 | 0 | 5 | 46 | 1.000 | | | | | |
| | d | Logan Forsythe | 3 | 3 | 26.0 | 29 | 2 | 0 | 5 | 31 | 1.000 | | | | | |
| | | Jonathan Lucroy | 2 | 0 | 8.0 | 9 | 1 | 0 | 1 | 10 | 1.000 | | | | | |
| | | Total | 172 | 162 | 1457.3 | 1430 | 100 | 5 | 133 | 1535 | .997 | | | | | |
| | | | | | | | | | | | | | | | | |
| 2b | | Sean Rodriguez | 94 | 93 | 824.7 | 160 | 285 | 7 | 65 | 452 | .985 | | | | | |
| | | Josh Rutledge | 69 | 69 | 628.7 | 117 | 240 | 5 | 46 | 362 | .986 | | | | | |
| | | Nomar Mazara | 1 | 0 | 4.0 | 0 | 1 | 0 | 0 | 1 | 1.000 | | | | | |
| | | Total | 164 | 162 | 1457.3 | 277 | 526 | 12 | 111 | 815 | .985 | | | | | |
| | | | | | | | | | | | | | | | | |
| 3b | | Josh Rutledge | 93 | 93 | 738.3 | 42 | 171 | 16 | 17 | 229 | .930 | | | | | |
| | | Mike Moustakas | 104 | 54 | 590.3 | 40 | 109 | 3 | 11 | 152 | .980 | | | | | |
| | d | Logan Forsythe | 15 | 15 | 124.7 | 7 | 22 | 3 | 2 | 32 | .906 | | | | | |
| | | Justin Smoak | 1 | 0 | 4.0 | 0 | 0 | 0 | 0 | 0 | .000 | | | | | |
| | | Total | 213 | 162 | 1457.3 | 89 | 302 | 22 | 30 | 413 | .947 | | | | | |
| | | | | | | | | | | | | | | | | |
| ss | | Alcides Escobar | 162 | 162 | 1457.3 | 187 | 522 | 10 | 91 | 719 | .986 | | | | | |
| | | Total | 162 | 162 | 1457.3 | 187 | 522 | 10 | 91 | 719 | .986 | | | | | |
| | | | | | | | | | | | | | | | | |
| lf | | Justin Upton | 162 | 162 | 1451.7 | 296 | 11 | 3 | 1 | 310 | .990 | | | | | |
| | | Adam Eaton | 1 | 0 | 3.7 | 2 | 0 | 0 | 0 | 2 | 1.000 | | | | | |
| | | Mike Moustakas | 1 | 0 | 2.0 | 1 | 0 | 0 | 0 | 1 | 1.000 | | | | | |
| | | Total | 164 | 162 | 1457.3 | 299 | 11 | 3 | 1 | 313 | .990 | | | | | |
| | | | | | | | | | | | | | | | | |
| cf | | Adam Eaton | 161 | 161 | 1423.7 | 359 | 6 | 2 | 1 | 367 | .995 | | | | | |
| | | Lorenzo Cain | 4 | 1 | 24.7 | 7 | 0 | 0 | 0 | 7 | 1.000 | | | | | |
| | | Sean Rodriguez | 2 | 0 | 9.0 | 2 | 0 | 0 | 0 | 2 | 1.000 | | | | | |
| | | Total | 167 | 162 | 1457.3 | 368 | 6 | 2 | 1 | 376 | .995 | | | | | |
| | | | | | | | | | | | | | | | | |
| rf | | Nomar Mazara | 125 | 122 | 1068.3 | 240 | 14 | 2 | 0 | 256 | .992 | | | | | |
| | | Lorenzo Cain | 44 | 40 | 389.0 | 92 | 5 | 0 | 1 | 97 | 1.000 | | | | | |
| | | Total | 169 | 162 | 1457.3 | 332 | 19 | 2 | 1 | 353 | .994 | | | | | |
| | | | | | | | | | | | | | | | | |
| | | Total | 162 | 162 | 1457.3 | 4372 | 1711 | 89 | 136 | 6172 | .986 | 9 | | | | |