Team fielding - 2018 Seattle Mariners
Regular season
| Primary |
| Pos | Name | G | GS | INN | PO | A | E | DP | TC | PCT | PB | SB | CS | SB% | PK |
| p | Blach, T | 30 | 30 | 185.0 | 10 | 23 | 5 | 2 | 38 | .868 | | 4 | 5 | .444 | 3 |
| | Blackburn, P | 13 | 13 | 81.1 | 11 | 17 | 0 | 0 | 28 | 1.000 | | 5 | 1 | .833 | 2 |
| | Glasnow, T* | 25 | 25 | 100.0 | 7 | 9 | 2 | 1 | 18 | .889 | | 15 | 3 | .833 | 0 |
| | Baez, P | 67 | 0 | 87.0 | 9 | 8 | 0 | 1 | 17 | 1.000 | | 0 | 1 | .000 | 0 |
| | Miranda, A* | 32 | 32 | 165.2 | 6 | 8 | 3 | 0 | 17 | .824 | | 0 | 1 | .000 | 0 |
| | Shoemaker, M | 18 | 18 | 98.2 | 6 | 9 | 1 | 2 | 16 | .938 | | 4 | 2 | .667 | 1 |
| | LeBlanc, W* | 54 | 0 | 102.2 | 5 | 10 | 0 | 0 | 15 | 1.000 | | 1 | 0 | 1.000 | 0 |
| | O'Day, D | 69 | 0 | 86.2 | 4 | 10 | 0 | 0 | 14 | 1.000 | | 4 | 1 | .800 | 0 |
| | Diaz, M | 19 | 3 | 39.2 | 4 | 7 | 1 | 0 | 12 | .917 | | 1 | 0 | 1.000 | 0 |
| | Salazar, D* | 23 | 22 | 109.2 | 0 | 7 | 3 | 0 | 10 | .700 | | 2 | 4 | .333 | 1 |
| | Castro, M | 38 | 1 | 71.0 | 4 | 6 | 0 | 0 | 10 | 1.000 | | 2 | 0 | 1.000 | 0 |
| | Minor, M | 55 | 0 | 73.0 | 1 | 8 | 0 | 1 | 9 | 1.000 | | 5 | 4 | .556 | 1 |
| | Loup, A* | 12 | 0 | 20.0 | 2 | 6 | 0 | 0 | 8 | 1.000 | | 0 | 0 | .000 | 1 |
| | Knebel, C | 72 | 0 | 78.2 | 2 | 4 | 2 | 0 | 8 | .750 | | 3 | 3 | .500 | 2 |
| | Cole, A | 11 | 9 | 49.0 | 2 | 3 | 1 | 0 | 6 | .833 | | 5 | 2 | .714 | 0 |
| | Merritt, R* | 5 | 4 | 25.0 | 1 | 3 | 0 | 0 | 4 | 1.000 | | 4 | 2 | .667 | 0 |
| | Blevins, J* | 40 | 0 | 31.2 | 0 | 2 | 0 | 1 | 2 | 1.000 | | 0 | 1 | .000 | 1 |
| | Shipley, B | 3 | 1 | 9.0 | 0 | 1 | 1 | 0 | 2 | .500 | | 0 | 0 | .000 | 0 |
| | Fedde, E | 4 | 4 | 17.1 | 0 | 1 | 1 | 0 | 2 | .500 | | 2 | 2 | .500 | 0 |
| | Wisler, M | 12 | 0 | 19.1 | 0 | 0 | 0 | 0 | 0 | .000 | | 1 | 0 | 1.000 | 0 |
| | Engel, A | 1 | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 | .000 | | 0 | 0 | .000 | 0 |
| | Total | 603 | 162 | 1451.1 | 74 | 142 | 20 | 8 | 236 | .915 | | 58 | 32 | .644 | 12 |
| | | | | | | | | | | | | | | | |
| c | Flowers, T | 105 | 100 | 921.2 | 847 | 40 | 4 | 1 | 891 | .996 | 7 | 29 | 19 | .604 | 1 |
| | Alfaro, J | 30 | 29 | 255.1 | 221 | 10 | 2 | 0 | 233 | .991 | 2 | 14 | 6 | .700 | 0 |
| | Torrens, L | 33 | 33 | 274.1 | 212 | 12 | 1 | 0 | 225 | .996 | 3 | 15 | 7 | .682 | 1 |
| | Total | 168 | 162 | 1451.1 | 1280 | 62 | 7 | 1 | 1349 | .995 | 12 | 58 | 32 | .644 | 2 |
| | | | | | | | | | | | | | | | |
| 1b | Abreu, J | 156 | 156 | 1373.0 | 1255 | 84 | 13 | 124 | 1352 | .990 | | | | | |
| | Cabrera, M | 4 | 4 | 34.0 | 31 | 0 | 1 | 4 | 32 | .969 | | | | | |
| | Dietrich, D* | 4 | 2 | 28.0 | 21 | 3 | 0 | 3 | 24 | 1.000 | | | | | |
| | Espinosa, D# | 3 | 0 | 16.0 | 11 | 1 | 0 | 0 | 12 | 1.000 | | | | | |
| | Alfaro, J | 1 | 0 | 0.1 | 0 | 0 | 0 | 0 | 0 | .000 | | | | | |
| | Total | 168 | 162 | 1451.1 | 1318 | 88 | 14 | 131 | 1420 | .990 | | | | | |
| | | | | | | | | | | | | | | | |
| 2b | Happ, I# | 92 | 91 | 813.0 | 182 | 269 | 4 | 62 | 455 | .991 | | | | | |
| | Dietrich, D* | 46 | 39 | 356.1 | 88 | 114 | 3 | 28 | 205 | .985 | | | | | |
| | Cecchini, G | 18 | 17 | 141.0 | 33 | 53 | 0 | 13 | 86 | 1.000 | | | | | |
| | Espinosa, D# | 18 | 15 | 141.0 | 28 | 56 | 1 | 14 | 85 | .988 | | | | | |
| | Total | 174 | 162 | 1451.1 | 331 | 492 | 8 | 117 | 831 | .990 | | | | | |
| | | | | | | | | | | | | | | | |
| 3b | Dietrich, D* | 88 | 85 | 713.0 | 60 | 122 | 6 | 14 | 188 | .968 | | | | | |
| | Garcia, A | 49 | 48 | 417.2 | 25 | 78 | 7 | 6 | 110 | .936 | | | | | |
| | Arroyo, C | 25 | 25 | 203.2 | 11 | 43 | 2 | 5 | 56 | .964 | | | | | |
| | Espinosa, D# | 41 | 3 | 91.1 | 3 | 13 | 3 | 3 | 19 | .842 | | | | | |
| | Happ, I# | 6 | 1 | 25.2 | 1 | 3 | 1 | 0 | 5 | .800 | | | | | |
| | Total | 209 | 162 | 1451.1 | 100 | 259 | 19 | 28 | 378 | .950 | | | | | |
| | | | | | | | | | | | | | | | |
| ss | Russell, A | 120 | 120 | 1064.1 | 162 | 392 | 26 | 71 | 580 | .955 | | | | | |
| | Tejada, R | 42 | 42 | 365.2 | 48 | 133 | 5 | 24 | 186 | .973 | | | | | |
| | Espinosa, D# | 6 | 0 | 21.1 | 1 | 5 | 2 | 0 | 8 | .750 | | | | | |
| | Total | 168 | 162 | 1451.1 | 211 | 530 | 33 | 95 | 774 | .957 | | | | | |
| | | | | | | | | | | | | | | | |
| lf | Cabrera, M# | 127 | 127 | 1142.2 | 260 | 15 | 2 | 1 | 277 | .993 | | | | | |
| | Granderson, C* | 23 | 22 | 192.1 | 42 | 2 | 0 | 0 | 44 | 1.000 | | | | | |
| | Parker, J* | 10 | 10 | 86.1 | 19 | 2 | 2 | 0 | 23 | .913 | | | | | |
| | Happ, I# | 4 | 3 | 25.0 | 4 | 0 | 0 | 0 | 4 | 1.000 | | | | | |
| | Garcia, A | 1 | 0 | 3.0 | 0 | 1 | 0 | 0 | 1 | 1.000 | | | | | |
| | Adduci, J* | 1 | 0 | 2.0 | 0 | 0 | 0 | 0 | 0 | .000 | | | | | |
| | Total | 166 | 162 | 1451.1 | 325 | 20 | 4 | 1 | 349 | .989 | | | | | |
| | | | | | | | | | | | | | | | |
| cf | Altherr, A | 91 | 89 | 790.1 | 222 | 4 | 3 | 1 | 229 | .987 | | | | | |
| | Engel, A | 45 | 36 | 326.0 | 92 | 2 | 1 | 1 | 95 | .989 | | | | | |
| | Granderson, C* | 32 | 22 | 204.1 | 46 | 2 | 1 | 0 | 49 | .980 | | | | | |
| | Happ, I# | 18 | 15 | 130.2 | 43 | 0 | 3 | 0 | 46 | .935 | | | | | |
| | Total | 186 | 162 | 1451.1 | 403 | 8 | 8 | 2 | 419 | .981 | | | | | |
| | | | | | | | | | | | | | | | |
| rf | Granderson, C* | 80 | 71 | 671.0 | 134 | 5 | 2 | 1 | 141 | .986 | | | | | |
| | Altherr, A | 29 | 25 | 231.0 | 72 | 2 | 1 | 1 | 75 | .987 | | | | | |
| | Parker, J* | 38 | 38 | 315.0 | 70 | 2 | 0 | 0 | 72 | 1.000 | | | | | |
| | Cabrera, M# | 18 | 18 | 153.1 | 27 | 2 | 0 | 0 | 29 | 1.000 | | | | | |
| | Happ, I# | 10 | 9 | 70.0 | 7 | 1 | 1 | 0 | 9 | .889 | | | | | |
| | Adduci, J* | 4 | 1 | 11.0 | 2 | 0 | 0 | 0 | 2 | 1.000 | | | | | |
| | Total | 179 | 162 | 1451.1 | 312 | 12 | 4 | 2 | 328 | .988 | | | | | |
| | | | | | | | | | | | | | | | |
| | Total | 162 | 162 | 1451.1 | 4354 | 1613 | 117 | 139 | 6084 | .981 | 12 | | | | |