UsagePosition -- 2019 Seattle Mariners
Regular season -- as of 9/26/2019
| Batter Status |
| S | Name | P | G | FLG |
| f | Jim Adduci | 1b | 59 | 63 |
| | Jorge Alfaro | c | 108 | 114 |
| | Aaron Altherr | rf | 105 | 85 |
| f | Francisco Arcia | c | 40 | 46 |
| f | Christian Arroyo | 3b | 20 | 22 |
| | Melky Cabrera | rf | 78 | 85 |
| f | Miguel Cabrera | 1b | 38 | 41 |
| | Nick Ciuffo | c | 16 | 14 |
| | Charlie Culberson | lf | 113 | 126 |
| | Derek Dietrich | lf | 149 | 144 |
| | Adam Engel | cf | 143 | 127 |
| f | Kyle Farmer | 3b | 39 | 42 |
| | Curtis Granderson | rf | 123 | 131 |
| | Ian Happ | cf | 142 | 142 |
| | DJ LeMahieu | 2b | 128 | 140 |
| | Kristopher Negron | 3b | 20 | 28 |
| f | Pablo Reyes | rf | 18 | 16 |
| | Addison Russell | ss | 130 | 140 |
| f | J.B. Shuck | rf | 70 | 62 |
| | Patrick Wisdom | 3b | 32 | 34 |
| | Total | | 1571 | 1602 |
| Pitcher Status |
| S | Name | P | G | FLG | GS | FLGS |
| | Mike Minor | sp | 28 | 31 | 28 | 31 |
| | Wade LeBlanc | sp | 32 | 39 | 27 | 26 |
| | Ty Blach | mr | 47 | 33 | 13 | 23 |
| | Tyler Glasnow | mr | 45 | 26 | 11 | 23 |
| | Erick Fedde | sp | 11 | 20 | 11 | 20 |
| f | Matt Shoemaker | sp | 7 | 10 | 7 | 10 |
| f | Paul Blackburn | sp | 6 | 9 | 6 | 9 |
| f | Brett Kennedy | sp | 6 | 9 | 6 | 9 |
| f | Matt Wisler | mr | 18 | 22 | 3 | 4 |
| | Zack Littell | mr | 8 | 23 | 2 | 4 |
| | Jerry Blevins | mr | 64 | 43 | 1 | 1 |
| | Miguel Castro | mr | 63 | 64 | 1 | 2 |
| | Darren O'Day | mr | 20 | 23 | 0 | 0 |
| | Corey Knebel | cl | 57 | 58 | 0 | 0 |
| | Aaron Loup | mr | 59 | 34 | 0 | 0 |
| f | Danny Salazar | sp | 0 | 0 | 0 | 0 |
| | Richard Rodriguez | mr | 63 | 66 | 0 | 0 |
| f | Tommy Kahnle | mr | 24 | 26 | 0 | 0 |
| f | Kyle Wright | mr | 4 | 7 | 0 | 0 |
| f | Daniel Zamora | mr | 16 | 4 | 0 | 0 |
| | Total | | 116 | 162 | 116 | 162 |