| Seattle Mariners - 2021 | |||
Record: 90-72 Park: T-Mobile Park Attendance: 1,215,985 Park Factor: 95 | |||
| Batting | Pitching | Fielding | Lineups | Value | |||||||
| Player | G | PA | OUTS | RS | RS27 | RSpm | |
| Mitch Haniger | 157 | 691 | 483 | 105.0 | 5.87 | 28.4 | |
| Ty France | 152 | 650 | 424 | 79.0 | 5.03 | 11.1 | |
| Kyle Seager | 159 | 670 | 487 | 87.0 | 4.82 | 8.8 | |
| Jake Fraley | 78 | 265 | 177 | 31.5 | 4.81 | 3.1 | |
| Dillon Thomas | 4 | 9 | 8 | 2.0 | 6.75 | 0.7 | |
| Justin Dunn | 11 | 3 | 2 | 0.5 | 6.75 | 0.2 | |
| Shed Long | 34 | 121 | 93 | 15.0 | 4.35 | 0.0 | |
| Braden Bishop | 8 | 5 | 4 | 0.5 | 3.38 | -0.2 | |
| Kevin Padlo | 1 | 1 | 1 | 0.0 | 0.00 | -0.2 | |
| Justus Sheffield | 21 | 2 | 1 | 0.0 | 0.00 | -0.2 | |
| Darren McCaughan | 2 | 2 | 2 | 0.0 | 0.00 | -0.3 | |
| Yusei Kikuchi |
29 | 2 | 2 | 0.0 | 0.00 | -0.3 | |
| Tyler Anderson | 13 | 3 | 2 | 0.0 | 0.00 | -0.3 | |
| Chris Flexen | 31 | 3 | 3 | 0.0 | 0.00 | -0.5 | |
| Marco Gonzales | 25 | 4 | 4 | 0.0 | 0.00 | -0.7 | |
| Eric Campbell | 4 | 12 | 8 | 0.5 | 1.69 | -0.8 | |
| Luis Torrens | 108 | 378 | 273 | 43.0 | 4.25 | -1.1 | |
| Jacob Nottingham | 10 | 31 | 24 | 2.5 | 2.81 | -1.4 | |
| Abraham Toro | 60 | 253 | 176 | 27.0 | 4.14 | -1.5 | |
| Taylor Trammell | 51 | 178 | 137 | 20.5 | 4.04 | -1.7 | |
| Sam Haggerty | 35 | 94 | 73 | 10.0 | 3.70 | -1.9 | |
| Donovan Walton | 24 | 69 | 53 | 6.5 | 3.31 | -2.2 | |
| Jack Mayfield | 12 | 35 | 30 | 2.5 | 2.25 | -2.5 | |
| Jose Godoy | 16 | 40 | 33 | 2.5 | 2.05 | -3.0 | |
| Tom Murphy | 97 | 322 | 232 | 34.5 | 4.02 | -3.1 | |
| Kyle Lewis | 36 | 147 | 99 | 13.0 | 3.55 | -3.1 | |
| Jose Marmolejos | 41 | 122 | 90 | 11.5 | 3.45 | -3.2 | |
| Dylan Moore | 126 | 377 | 284 | 42.5 | 4.04 | -3.5 | |
| Jarred Kelenic | 93 | 377 | 286 | 42.0 | 3.97 | -4.4 | |
| J. P. Crawford | 160 | 687 | 471 | 71.5 | 4.10 | -4.8 | |
| Evan White | 30 | 104 | 84 | 8.5 | 2.73 | -5.3 | |
| Jake Bauers | 72 | 202 | 143 | 16.5 | 3.12 | -6.9 | |
| Cal Raleigh | 47 | 148 | 118 | 9.5 | 2.17 | -10.1 | |

