Team fielding -- 18 Back Bay Brawlers
Regular season -- as of 9/13/2019
| Primary |
| Pos | S | Name | G | GS | INN | PO | A | E | DP | TC | PCT | PB | SB | CS | SB% | PK |
| p | | Brent Suter | 32 | 32 | 178.3 | 15 | 20 | 4 | 2 | 39 | .897 | | 7 | 8 | .467 | 2 |
| | | Bartolo Colon | 31 | 31 | 160.0 | 15 | 18 | 3 | 1 | 36 | .917 | | 7 | 2 | .778 | 1 |
| | | Jose Berrios | 33 | 33 | 205.7 | 12 | 19 | 2 | 1 | 33 | .939 | | 13 | 6 | .684 | 2 |
| | | Michael Fiers | 33 | 33 | 199.7 | 7 | 20 | 1 | 0 | 28 | .964 | | 24 | 1 | .960 | 1 |
| | | Corey Oswalt | 76 | 0 | 136.0 | 10 | 16 | 0 | 0 | 26 | 1.000 | | 4 | 3 | .571 | 2 |
| | | Yovani Gallardo | 78 | 2 | 118.0 | 5 | 20 | 0 | 2 | 25 | 1.000 | | 9 | 4 | .692 | 0 |
| | | Hector Santiago | 31 | 31 | 147.3 | 8 | 16 | 0 | 1 | 24 | 1.000 | | 20 | 7 | .741 | 3 |
| | | Shane Greene | 63 | 0 | 84.7 | 2 | 8 | 1 | 0 | 11 | .909 | | 4 | 0 | 1.000 | 0 |
| | | Blake Parker | 50 | 0 | 69.7 | 3 | 8 | 0 | 1 | 11 | 1.000 | | 4 | 0 | 1.000 | 0 |
| | | Brad Ziegler | 45 | 0 | 49.3 | 3 | 4 | 1 | 0 | 8 | .875 | | 3 | 1 | .750 | 2 |
| | | Tyler Clippard | 55 | 0 | 74.7 | 4 | 3 | 0 | 1 | 7 | 1.000 | | 10 | 4 | .714 | 0 |
| | | Total | 527 | 162 | 1423.3 | 84 | 152 | 12 | 9 | 248 | .952 | | 105 | 36 | .745 | 13 |
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| c | | Tyler Flowers | 149 | 117 | 965.7 | 836 | 46 | 1 | 4 | 883 | .999 | 11 | 81 | 23 | .779 | 0 |
| | | Bobby Wilson | 117 | 45 | 457.7 | 389 | 27 | 2 | 4 | 418 | .995 | 5 | 24 | 13 | .649 | 0 |
| | | Total | 266 | 162 | 1423.3 | 1225 | 73 | 3 | 8 | 1301 | .998 | 16 | 105 | 36 | .745 | 0 |
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| 1b | | Logan Morrison | 162 | 162 | 1343.0 | 1260 | 95 | 13 | 111 | 1368 | .990 | | | | | |
| | | Martin Prado | 32 | 0 | 55.3 | 60 | 4 | 0 | 5 | 64 | 1.000 | | | | | |
| | | Sean Rodriguez | 7 | 0 | 14.3 | 14 | 0 | 0 | 2 | 14 | 1.000 | | | | | |
| | | Mike Moustakas | 8 | 0 | 10.7 | 4 | 1 | 0 | 2 | 5 | 1.000 | | | | | |
| | | Total | 209 | 162 | 1423.3 | 1338 | 100 | 13 | 120 | 1451 | .991 | | | | | |
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| 2b | | Asdrubal Cabrera | 162 | 162 | 1419.3 | 285 | 434 | 12 | 100 | 731 | .984 | | | | | |
| | | Sean Rodriguez | 1 | 0 | 4.0 | 0 | 0 | 0 | 0 | 0 | .000 | | | | | |
| | | Total | 163 | 162 | 1423.3 | 285 | 434 | 12 | 100 | 731 | .984 | | | | | |
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| 3b | | Mike Moustakas | 121 | 121 | 1056.0 | 63 | 232 | 8 | 15 | 303 | .974 | | | | | |
| | | Jeimer Candelario | 43 | 41 | 363.3 | 27 | 68 | 0 | 6 | 95 | 1.000 | | | | | |
| | | Martin Prado | 3 | 0 | 4.0 | 2 | 0 | 0 | 0 | 2 | 1.000 | | | | | |
| | | Total | 167 | 162 | 1423.3 | 92 | 300 | 8 | 21 | 400 | .980 | | | | | |
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| ss | | Eduardo Escobar | 162 | 162 | 1416.3 | 188 | 483 | 23 | 82 | 694 | .967 | | | | | |
| | | Sean Rodriguez | 1 | 0 | 2.0 | 0 | 1 | 0 | 0 | 1 | 1.000 | | | | | |
| | | Martin Prado | 1 | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 | .000 | | | | | |
| | | Asdrubal Cabrera | 1 | 0 | 4.0 | 0 | 0 | 0 | 0 | 0 | .000 | | | | | |
| | | Total | 165 | 162 | 1423.3 | 188 | 484 | 23 | 82 | 695 | .967 | | | | | |
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| lf | | Nick Markakis | 162 | 162 | 1423.3 | 357 | 11 | 1 | 0 | 369 | .997 | | | | | |
| | | Total | 162 | 162 | 1423.3 | 357 | 11 | 1 | 0 | 369 | .997 | | | | | |
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| cf | | Jake Cave | 134 | 120 | 1037.7 | 295 | 7 | 11 | 0 | 313 | .965 | | | | | |
| | | Sean Rodriguez | 56 | 42 | 376.7 | 91 | 3 | 2 | 1 | 96 | .979 | | | | | |
| | | Robbie Grossman | 1 | 0 | 9.0 | 2 | 0 | 0 | 0 | 2 | 1.000 | | | | | |
| | | Total | 191 | 162 | 1423.3 | 388 | 10 | 13 | 1 | 411 | .968 | | | | | |
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| rf | | Nomar Mazara | 122 | 121 | 1042.3 | 220 | 4 | 1 | 2 | 225 | .996 | | | | | |
| | | Robbie Grossman | 47 | 41 | 376.0 | 92 | 5 | 3 | 0 | 100 | .970 | | | | | |
| | | Sean Rodriguez | 1 | 0 | 3.0 | 1 | 0 | 0 | 0 | 1 | 1.000 | | | | | |
| | | Martin Prado | 1 | 0 | 2.0 | 0 | 0 | 0 | 0 | 0 | .000 | | | | | |
| | | Total | 171 | 162 | 1423.3 | 313 | 9 | 4 | 2 | 326 | .988 | | | | | |
| | | | | | | | | | | | | | | | | |
| | | Total | 162 | 162 | 1423.3 | 4270 | 1573 | 89 | 125 | 5932 | .985 | 16 | | | | |