Team fielding -- 2018 Seattle Mariners
Regular season -- as of 9/26/2018
| Primary |
| Pos | S | Name | G | GS | INN | PO | A | E | DP | TC | PCT | PB | SB | CS | SB% | PK |
| p | | Ty Blach | 30 | 30 | 185.0 | 10 | 23 | 5 | 2 | 38 | .868 | | 4 | 5 | .444 | 3 |
| | f | Paul Blackburn | 13 | 13 | 81.3 | 11 | 17 | 0 | 0 | 28 | 1.000 | | 5 | 1 | .833 | 2 |
| | f | Tyler Glasnow | 25 | 25 | 100.0 | 7 | 9 | 2 | 1 | 18 | .889 | | 15 | 3 | .833 | 0 |
| | | Pedro Baez | 67 | 0 | 87.0 | 9 | 8 | 0 | 1 | 17 | 1.000 | | 0 | 1 | .000 | 0 |
| | | Ariel Miranda | 32 | 32 | 165.7 | 6 | 8 | 3 | 0 | 17 | .824 | | 0 | 1 | .000 | 0 |
| | | Matt Shoemaker | 18 | 18 | 98.7 | 6 | 9 | 1 | 2 | 16 | .938 | | 4 | 2 | .667 | 1 |
| | | Wade LeBlanc | 54 | 0 | 102.7 | 5 | 10 | 0 | 0 | 15 | 1.000 | | 1 | 0 | 1.000 | 0 |
| | | Darren O'Day | 69 | 0 | 86.7 | 4 | 10 | 0 | 0 | 14 | 1.000 | | 4 | 1 | .800 | 0 |
| | | Miguel Diaz | 19 | 3 | 39.7 | 4 | 7 | 1 | 0 | 12 | .917 | | 1 | 0 | 1.000 | 0 |
| | f | Miguel Castro | 38 | 1 | 71.0 | 4 | 6 | 0 | 0 | 10 | 1.000 | | 2 | 0 | 1.000 | 0 |
| | | Danny Salazar | 23 | 22 | 109.7 | 0 | 7 | 3 | 0 | 10 | .700 | | 2 | 4 | .333 | 1 |
| | | Mike Minor | 55 | 0 | 73.0 | 1 | 8 | 0 | 1 | 9 | 1.000 | | 5 | 4 | .556 | 1 |
| | | Corey Knebel | 72 | 0 | 78.7 | 2 | 4 | 2 | 0 | 8 | .750 | | 3 | 3 | .500 | 2 |
| | f | Aaron Loup | 12 | 0 | 20.0 | 2 | 6 | 0 | 0 | 8 | 1.000 | | 0 | 0 | .000 | 1 |
| | | A.J. Cole | 11 | 9 | 49.0 | 2 | 3 | 1 | 0 | 6 | .833 | | 5 | 2 | .714 | 0 |
| | f | Ryan Merritt | 5 | 4 | 25.0 | 1 | 3 | 0 | 0 | 4 | 1.000 | | 4 | 2 | .667 | 0 |
| | | Jerry Blevins | 40 | 0 | 31.7 | 0 | 2 | 0 | 1 | 2 | 1.000 | | 0 | 1 | .000 | 1 |
| | f | Erick Fedde | 4 | 4 | 17.3 | 0 | 1 | 1 | 0 | 2 | .500 | | 2 | 2 | .500 | 0 |
| | f | Braden Shipley | 3 | 1 | 9.0 | 0 | 1 | 1 | 0 | 2 | .500 | | 0 | 0 | .000 | 0 |
| | | Adam Engel | 1 | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 | .000 | | 0 | 0 | .000 | 0 |
| | f | Matt Wisler | 12 | 0 | 19.3 | 0 | 0 | 0 | 0 | 0 | .000 | | 1 | 0 | 1.000 | 0 |
| | | Total | 603 | 162 | 1451.3 | 74 | 142 | 20 | 8 | 236 | .915 | | 58 | 32 | .644 | 12 |
| | | | | | | | | | | | | | | | | |
| c | | Tyler Flowers | 105 | 100 | 921.7 | 847 | 40 | 4 | 1 | 891 | .996 | 7 | 29 | 19 | .604 | 1 |
| | | Jorge Alfaro | 30 | 29 | 255.3 | 221 | 10 | 2 | 0 | 233 | .991 | 2 | 14 | 6 | .700 | 0 |
| | f | Luis Torrens | 33 | 33 | 274.3 | 212 | 12 | 1 | 0 | 225 | .996 | 3 | 15 | 7 | .682 | 1 |
| | | Total | 168 | 162 | 1451.3 | 1280 | 62 | 7 | 1 | 1349 | .995 | 12 | 58 | 32 | .644 | 2 |
| | | | | | | | | | | | | | | | | |
| 1b | | Jose Abreu | 156 | 156 | 1373.0 | 1255 | 84 | 13 | 124 | 1352 | .990 | | | | | |
| | | Miguel Cabrera | 4 | 4 | 34.0 | 31 | 0 | 1 | 4 | 32 | .969 | | | | | |
| | | Derek Dietrich | 4 | 2 | 28.0 | 21 | 3 | 0 | 3 | 24 | 1.000 | | | | | |
| | | Danny Espinosa | 3 | 0 | 16.0 | 11 | 1 | 0 | 0 | 12 | 1.000 | | | | | |
| | | Jorge Alfaro | 1 | 0 | 0.3 | 0 | 0 | 0 | 0 | 0 | .000 | | | | | |
| | | Total | 168 | 162 | 1451.3 | 1318 | 88 | 14 | 131 | 1420 | .990 | | | | | |
| | | | | | | | | | | | | | | | | |
| 2b | | Ian Happ | 92 | 91 | 813.0 | 182 | 269 | 4 | 62 | 455 | .991 | | | | | |
| | | Derek Dietrich | 46 | 39 | 356.3 | 88 | 114 | 3 | 28 | 205 | .985 | | | | | |
| | f | Gavin Cecchini | 18 | 17 | 141.0 | 33 | 53 | 0 | 13 | 86 | 1.000 | | | | | |
| | | Danny Espinosa | 18 | 15 | 141.0 | 28 | 56 | 1 | 14 | 85 | .988 | | | | | |
| | | Total | 174 | 162 | 1451.3 | 331 | 492 | 8 | 117 | 831 | .990 | | | | | |
| | | | | | | | | | | | | | | | | |
| 3b | | Derek Dietrich | 88 | 85 | 713.0 | 60 | 122 | 6 | 14 | 188 | .968 | | | | | |
| | | Adonis Garcia | 49 | 48 | 417.7 | 25 | 78 | 7 | 6 | 110 | .936 | | | | | |
| | f | Christian Arroyo | 25 | 25 | 203.7 | 11 | 43 | 2 | 5 | 56 | .964 | | | | | |
| | | Danny Espinosa | 41 | 3 | 91.3 | 3 | 13 | 3 | 3 | 19 | .842 | | | | | |
| | | Ian Happ | 6 | 1 | 25.7 | 1 | 3 | 1 | 0 | 5 | .800 | | | | | |
| | | Total | 209 | 162 | 1451.3 | 100 | 259 | 19 | 28 | 378 | .950 | | | | | |
| | | | | | | | | | | | | | | | | |
| ss | | Addison Russell | 120 | 120 | 1064.3 | 162 | 392 | 26 | 71 | 580 | .955 | | | | | |
| | f | Ruben Tejada | 42 | 42 | 365.7 | 48 | 133 | 5 | 24 | 186 | .973 | | | | | |
| | | Danny Espinosa | 6 | 0 | 21.3 | 1 | 5 | 2 | 0 | 8 | .750 | | | | | |
| | | Total | 168 | 162 | 1451.3 | 211 | 530 | 33 | 95 | 774 | .957 | | | | | |
| | | | | | | | | | | | | | | | | |
| lf | | Melky Cabrera | 127 | 127 | 1142.7 | 260 | 15 | 2 | 1 | 277 | .993 | | | | | |
| | | Curtis Granderson | 23 | 22 | 192.3 | 42 | 2 | 0 | 0 | 44 | 1.000 | | | | | |
| | f | Jarrett Parker | 10 | 10 | 86.3 | 19 | 2 | 2 | 0 | 23 | .913 | | | | | |
| | | Ian Happ | 4 | 3 | 25.0 | 4 | 0 | 0 | 0 | 4 | 1.000 | | | | | |
| | | Adonis Garcia | 1 | 0 | 3.0 | 0 | 1 | 0 | 0 | 1 | 1.000 | | | | | |
| | f | Jim Adduci | 1 | 0 | 2.0 | 0 | 0 | 0 | 0 | 0 | .000 | | | | | |
| | | Total | 166 | 162 | 1451.3 | 325 | 20 | 4 | 1 | 349 | .989 | | | | | |
| | | | | | | | | | | | | | | | | |
| cf | | Aaron Altherr | 91 | 89 | 790.3 | 222 | 4 | 3 | 1 | 229 | .987 | | | | | |
| | | Adam Engel | 45 | 36 | 326.0 | 92 | 2 | 1 | 1 | 95 | .989 | | | | | |
| | | Curtis Granderson | 32 | 22 | 204.3 | 46 | 2 | 1 | 0 | 49 | .980 | | | | | |
| | | Ian Happ | 18 | 15 | 130.7 | 43 | 0 | 3 | 0 | 46 | .935 | | | | | |
| | | Total | 186 | 162 | 1451.3 | 403 | 8 | 8 | 2 | 419 | .981 | | | | | |
| | | | | | | | | | | | | | | | | |
| rf | | Curtis Granderson | 80 | 71 | 671.0 | 134 | 5 | 2 | 1 | 141 | .986 | | | | | |
| | | Aaron Altherr | 29 | 25 | 231.0 | 72 | 2 | 1 | 1 | 75 | .987 | | | | | |
| | f | Jarrett Parker | 38 | 38 | 315.0 | 70 | 2 | 0 | 0 | 72 | 1.000 | | | | | |
| | | Melky Cabrera | 18 | 18 | 153.3 | 27 | 2 | 0 | 0 | 29 | 1.000 | | | | | |
| | | Ian Happ | 10 | 9 | 70.0 | 7 | 1 | 1 | 0 | 9 | .889 | | | | | |
| | f | Jim Adduci | 4 | 1 | 11.0 | 2 | 0 | 0 | 0 | 2 | 1.000 | | | | | |
| | | Total | 179 | 162 | 1451.3 | 312 | 12 | 4 | 2 | 328 | .988 | | | | | |
| | | | | | | | | | | | | | | | | |
| | | Total | 162 | 162 | 1451.3 | 4354 | 1613 | 117 | 139 | 6084 | .981 | 12 | | | | |