Team pitching -- 2023 Seattle Mariners
Regular season -- as of 9/26/2023
| Primary |
 | Name | P | ERA | W | L | S | G | GS | CG | SHO | INN | H | R | ER | BB | K | HR | GDP | BF |
| | Danish | mr | 2.45 | 2 | 1 | 0 | 18 | 0 | 0 | 0 | 33.0 | 24 | 11 | 9 | 6 | 15 | 3 | 3 | 132 |
| n | Nance | mr | 2.50 | 2 | 0 | 1 | 40 | 0 | 0 | 0 | 50.1 | 42 | 16 | 14 | 22 | 67 | 4 | 3 | 213 |
| n | Rucker | mr | 2.67 | 6 | 4 | 3 | 51 | 0 | 0 | 0 | 64.0 | 50 | 20 | 19 | 21 | 63 | 6 | 7 | 256 |
| n | Banks* | mr | 3.62 | 0 | 3 | 2 | 46 | 0 | 0 | 0 | 59.2 | 52 | 25 | 24 | 22 | 50 | 7 | 4 | 251 |
| | Baumann | mr | 3.97 | 2 | 1 | 0 | 6 | 6 | 0 | 0 | 34.0 | 42 | 17 | 15 | 7 | 25 | 3 | 6 | 147 |
| n | Chapman,A* | mr | 4.10 | 1 | 9 | 16 | 39 | 0 | 0 | 0 | 41.2 | 37 | 27 | 19 | 32 | 45 | 5 | 2 | 191 |
| | Maton,P | mr | 4.18 | 1 | 1 | 5 | 62 | 0 | 0 | 0 | 64.2 | 57 | 30 | 30 | 34 | 73 | 10 | 9 | 276 |
| | Espino | mr | 4.48 | 3 | 5 | 0 | 58 | 9 | 0 | 0 | 120.2 | 132 | 68 | 60 | 24 | 96 | 25 | 6 | 517 |
| n | Krehbiel | mr | 4.54 | 2 | 2 | 2 | 55 | 0 | 0 | 0 | 69.1 | 67 | 37 | 35 | 21 | 60 | 8 | 6 | 294 |
| | Blackburn | sp | 4.74 | 11 | 10 | 0 | 25 | 25 | 0 | 0 | 148.0 | 149 | 81 | 78 | 38 | 126 | 33 | 17 | 622 |
| | Brieske | sp | 4.74 | 3 | 9 | 0 | 17 | 17 | 0 | 0 | 98.2 | 98 | 55 | 52 | 24 | 71 | 19 | 4 | 419 |
| n | Bundy | sp | 4.97 | 9 | 15 | 0 | 30 | 30 | 2 | 0 | 177.1 | 190 | 110 | 98 | 40 | 107 | 42 | 8 | 769 |
| | Ashcraft | sp | 5.09 | 5 | 10 | 0 | 24 | 24 | 0 | 0 | 145.0 | 166 | 87 | 82 | 40 | 100 | 24 | 17 | 629 |
| f | Cabrera,E | sp | 5.12 | 2 | 11 | 0 | 18 | 18 | 0 | 0 | 95.0 | 72 | 57 | 54 | 52 | 103 | 21 | 8 | 417 |
| | Peters* | mr | 5.40 | 0 | 4 | 5 | 24 | 1 | 0 | 0 | 30.0 | 31 | 20 | 18 | 19 | 19 | 6 | 1 | 140 |
| n | Odorizzi | sp | 5.46 | 8 | 10 | 0 | 26 | 26 | 0 | 0 | 143.1 | 171 | 92 | 87 | 63 | 122 | 11 | 12 | 658 |
| | Stephenson,R | mr | 5.73 | 0 | 3 | 1 | 11 | 0 | 0 | 0 | 11.0 | 15 | 8 | 7 | 1 | 8 | 0 | 0 | 50 |
| | Junk | sp | 7.15 | 1 | 5 | 0 | 6 | 6 | 0 | 0 | 34.0 | 55 | 31 | 27 | 8 | 39 | 4 | 4 | 164 |
| | Gibaut | mr | 9.58 | 0 | 1 | 1 | 10 | 0 | 0 | 0 | 10.1 | 21 | 11 | 11 | 5 | 11 | 1 | 3 | 54 |
| | Strickland | mr | 15.00 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 6.0 | 10 | 10 | 10 | 2 | 4 | 0 | 1 | 31 |
| | Familia | mr | 18.90 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 3.1 | 8 | 7 | 7 | 2 | 5 | 0 | 0 | 22 |
|   | Total |   | 4.73 | 58 | 104 | 36 | 162 | 162 | 2 | 5 | 1439.1 | 1489 | 820 | 756 | 483 | 1209 | 232 | 121 | 6252 |
| Secondary |
 | Name | P | SB | CS | IW | HBP | WP | BK | SH | SF | CI | H/9 | BB/9 | R/9 | K/9 | HR/9 | K/BB | NP/G | STR% |
| | Danish | mr | 2 | 0 | 0 | 4 | 1 | 0 | 0 | 2 | 0 | 6.5 | 1.6 | 9.3 | 4.1 | 0.8 | 2.5 | 25.1 | .657 |
| n | Nance | mr | 5 | 1 | 1 | 1 | 3 | 0 | 1 | 1 | 0 | 7.5 | 3.9 | 11.6 | 12.0 | 0.7 | 3.0 | 20.6 | .617 |
| n | Rucker | mr | 0 | 0 | 4 | 0 | 5 | 0 | 1 | 3 | 0 | 7.0 | 3.0 | 10.0 | 8.9 | 0.8 | 3.0 | 19.3 | .642 |
| n | Banks* | mr | 1 | 0 | 1 | 4 | 0 | 0 | 1 | 1 | 0 | 7.8 | 3.3 | 11.8 | 7.5 | 1.1 | 2.3 | 20.8 | .609 |
| | Baumann | mr | 1 | 2 | 0 | 2 | 0 | 0 | 0 | 1 | 0 | 11.1 | 1.9 | 13.5 | 6.6 | 0.8 | 3.6 | 81.5 | .648 |
| n | Chapman,A* | mr | 2 | 0 | 1 | 0 | 4 | 0 | 0 | 3 | 0 | 8.0 | 6.9 | 14.9 | 9.7 | 1.1 | 1.4 | 19.5 | .546 |
| | Maton,P | mr | 0 | 3 | 0 | 5 | 0 | 0 | 1 | 1 | 0 | 7.9 | 4.7 | 13.4 | 10.2 | 1.4 | 2.1 | 17.5 | .604 |
| | Espino | mr | 1 | 2 | 1 | 3 | 2 | 0 | 0 | 3 | 0 | 9.8 | 1.8 | 11.9 | 7.2 | 1.9 | 4.0 | 33.1 | .658 |
| n | Krehbiel | mr | 2 | 0 | 0 | 6 | 3 | 0 | 1 | 4 | 0 | 8.7 | 2.7 | 12.2 | 7.8 | 1.0 | 2.9 | 19.5 | .632 |
| | Blackburn | sp | 9 | 3 | 1 | 11 | 1 | 0 | 1 | 3 | 0 | 9.1 | 2.3 | 12.0 | 7.7 | 2.0 | 3.3 | 92.4 | .643 |
| | Brieske | sp | 8 | 2 | 0 | 5 | 2 | 1 | 1 | 4 | 1 | 8.9 | 2.2 | 11.6 | 6.5 | 1.7 | 3.0 | 93.3 | .642 |
| n | Bundy | sp | 6 | 0 | 0 | 6 | 0 | 0 | 0 | 3 | 0 | 9.6 | 2.0 | 12.0 | 5.4 | 2.1 | 2.7 | 91.4 | .649 |
| | Ashcraft | sp | 5 | 6 | 0 | 12 | 8 | 0 | 0 | 6 | 0 | 10.3 | 2.5 | 13.5 | 6.2 | 1.5 | 2.5 | 93.4 | .624 |
| f | Cabrera,E | sp | 9 | 0 | 1 | 15 | 1 | 0 | 0 | 2 | 0 | 6.8 | 4.9 | 13.2 | 9.8 | 2.0 | 2.0 | 88.7 | .585 |
| | Peters* | mr | 2 | 2 | 2 | 1 | 1 | 0 | 0 | 1 | 0 | 9.3 | 5.7 | 15.3 | 5.7 | 1.8 | 1.0 | 21.7 | .612 |
| n | Odorizzi | sp | 12 | 3 | 0 | 6 | 3 | 0 | 0 | 7 | 0 | 10.7 | 4.0 | 15.1 | 7.7 | 0.7 | 1.9 | 94.2 | .609 |
| | Stephenson,R | mr | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 12.3 | 0.8 | 13.1 | 6.5 | 0.0 | 8.0 | 17.7 | .677 |
| | Junk | sp | 0 | 0 | 0 | 1 | 3 | 0 | 0 | 1 | 0 | 14.6 | 2.1 | 16.9 | 10.3 | 1.1 | 4.9 | 100.2 | .624 |
| | Gibaut | mr | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 18.3 | 4.4 | 22.6 | 9.6 | 0.9 | 2.2 | 21.5 | .600 |
| | Strickland | mr | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 15.0 | 3.0 | 19.5 | 6.0 | 0.0 | 2.0 | 27.8 | .595 |
| | Familia | mr | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 21.6 | 5.4 | 27.0 | 13.5 | 0.0 | 2.5 | 23.3 | .570 |
|   | Total |   | 65 | 24 | 12 | 83 | 38 | 1 | 8 | 47 | 1 | 9.3 | 3.0 | 12.8 | 7.6 | 1.5 | 2.5 |   | .626 |
| Analytical |
 | Name | P | OPS | WHIP | BIP | BABIP | TBW | /BF | TBWH | /BF | RC | RC27 | RCERA | CERA |
| | Danish | mr | .549 | 0.91 | 104 | .202 | 41 | .311 | 45 | .341 | 9.3 | 2.5 | 2.29 | 2.23 |
| n | Nance | mr | .620 | 1.27 | 119 | .319 | 81 | .380 | 82 | .385 | 19.6 | 3.5 | 3.15 | 3.21 |
| n | Rucker | mr | .625 | 1.11 | 166 | .265 | 101 | .395 | 101 | .395 | 21.6 | 3.0 | 2.74 | 2.56 |
| n | Banks* | mr | .680 | 1.24 | 168 | .268 | 104 | .414 | 108 | .430 | 26.6 | 4.1 | 3.60 | 3.62 |
| | Baumann | mr | .792 | 1.44 | 110 | .355 | 68 | .463 | 70 | .476 | 18.8 | 4.9 | 4.49 | 4.88 |
| n | Chapman,A* | mr | .784 | 1.66 | 109 | .294 | 98 | .513 | 98 | .513 | 26.9 | 5.9 | 5.23 | 4.97 |
| | Maton,P | mr | .766 | 1.41 | 154 | .305 | 132 | .478 | 137 | .496 | 33.2 | 4.7 | 4.16 | 4.76 |
| | Espino | mr | .772 | 1.29 | 369 | .290 | 250 | .484 | 253 | .489 | 68.6 | 5.1 | 4.60 | 4.56 |
| n | Krehbiel | mr | .733 | 1.27 | 199 | .296 | 129 | .439 | 135 | .459 | 35.5 | 4.7 | 4.15 | 3.98 |
| | Blackburn | sp | .807 | 1.26 | 414 | .280 | 316 | .508 | 327 | .526 | 85.1 | 5.2 | 4.66 | 4.74 |
| | Brieske | sp | .779 | 1.24 | 300 | .263 | 206 | .492 | 211 | .504 | 56.8 | 5.2 | 4.66 | 4.20 |
| n | Bundy | sp | .796 | 1.30 | 574 | .258 | 392 | .510 | 398 | .518 | 109.3 | 5.5 | 4.99 | 4.74 |
| | Ashcraft | sp | .816 | 1.42 | 453 | .313 | 308 | .490 | 320 | .509 | 89.0 | 5.5 | 4.97 | 5.32 |
| f | Cabrera,E | sp | .747 | 1.31 | 226 | .226 | 196 | .470 | 211 | .506 | 52.4 | 4.9 | 4.47 | 4.77 |
| | Peters* | mr | .835 | 1.67 | 95 | .263 | 75 | .536 | 76 | .543 | 21.3 | 6.3 | 5.76 | 5.93 |
| n | Odorizzi | sp | .777 | 1.63 | 456 | .351 | 303 | .460 | 309 | .470 | 91.6 | 5.7 | 5.18 | 5.31 |
| | Stephenson,R | mr | .764 | 1.45 | 41 | .366 | 22 | .440 | 22 | .440 | 7.0 | 5.5 | 5.13 | 3.97 |
| | Junk | sp | .929 | 1.85 | 112 | .455 | 91 | .555 | 92 | .561 | 31.4 | 8.2 | 7.48 | 7.32 |
| | Gibaut | mr | 1.211 | 2.52 | 37 | .541 | 40 | .741 | 40 | .741 | 15.7 | 13.7 | 12.29 | 11.48 |
| | Strickland | mr | .991 | 2.00 | 24 | .417 | 18 | .581 | 19 | .613 | 6.5 | 9.2 | 8.77 | 7.52 |
| | Familia | mr | 1.055 | 3.00 | 15 | .533 | 14 | .636 | 14 | .636 | 5.7 | 12.8 | 13.83 | 11.78 |
|   | Total |   | .774 | 1.37 | 4245 | .296 | 2985 | .477 | 3068 | .491 | 827.6 | 5.1 | 4.66 | 4.66 |
| Start |
 | Name | P | GS | CG | CG% | SHO | QS | QS% | RS | RS/G | RL | RLS | RL% |
| | Danish | mr | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 0 | .000 |
| n | Nance | mr | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 7 | 0 | .000 |
| n | Rucker | mr | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 7 | 3 | .429 |
| n | Banks* | mr | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 17 | 2 | .118 |
| | Baumann | mr | 6 | 0 | .000 | 0 | 3 | .500 | 21 | 3.5 | 4 | 1 | .250 |
| n | Chapman,A* | mr | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 18 | 7 | .389 |
| | Maton,P | mr | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 18 | 5 | .278 |
| | Espino | mr | 9 | 0 | .000 | 0 | 3 | .333 | 42 | 4.7 | 29 | 14 | .483 |
| n | Krehbiel | mr | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 15 | 4 | .267 |
| | Blackburn | sp | 25 | 0 | .000 | 0 | 8 | .320 | 94 | 3.8 | 17 | 4 | .235 |
| | Brieske | sp | 17 | 0 | .000 | 0 | 7 | .412 | 52 | 3.1 | 9 | 3 | .333 |
| n | Bundy | sp | 30 | 2 | .067 | 0 | 11 | .367 | 102 | 3.4 | 17 | 7 | .412 |
| | Ashcraft | sp | 24 | 0 | .000 | 0 | 12 | .500 | 91 | 3.8 | 13 | 5 | .385 |
| f | Cabrera,E | sp | 18 | 0 | .000 | 0 | 7 | .389 | 43 | 2.4 | 6 | 2 | .333 |
| | Peters* | mr | 1 | 0 | .000 | 0 | 0 | .000 | 3 | 3.0 | 5 | 0 | .000 |
| n | Odorizzi | sp | 26 | 0 | .000 | 0 | 9 | .346 | 107 | 4.1 | 19 | 11 | .579 |
| | Stephenson,R | mr | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 1 | .250 |
| | Junk | sp | 6 | 0 | .000 | 0 | 2 | .333 | 25 | 4.2 | 3 | 1 | .333 |
| | Gibaut | mr | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 1 | .250 |
| | Strickland | mr | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 2 | 1.000 |
| | Familia | mr | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 3 | .750 |
|   | Total |   | 162 | 2 | .012 | 5 | 62 | .383 | 580 | 3.6 | 220 | 76 | .345 |
| Relief |
 | Name | P | SVO | S | SV% | BS | BS% | HLD | IR | IRS | IR% | G | GR | GF |
| | Danish | mr | 0 | 0 | .000 | 0 | .000 | 2 | 18 | 9 | .500 | 18 | 18 | 6 |
| n | Nance | mr | 2 | 1 | .500 | 1 | .500 | 7 | 27 | 15 | .556 | 40 | 40 | 18 |
| n | Rucker | mr | 7 | 3 | .429 | 4 | .571 | 13 | 23 | 8 | .348 | 51 | 51 | 25 |
| n | Banks* | mr | 6 | 2 | .333 | 3 | .500 | 8 | 24 | 6 | .250 | 46 | 46 | 19 |
| | Baumann | mr | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 6 | 0 | 0 |
| n | Chapman,A* | mr | 19 | 16 | .842 | 3 | .158 | 4 | 14 | 2 | .143 | 39 | 39 | 25 |
| | Maton,P | mr | 8 | 5 | .625 | 2 | .250 | 13 | 31 | 8 | .258 | 62 | 62 | 19 |
| | Espino | mr | 0 | 0 | .000 | 0 | .000 | 11 | 26 | 7 | .269 | 58 | 49 | 9 |
| n | Krehbiel | mr | 8 | 2 | .250 | 6 | .750 | 9 | 36 | 13 | .361 | 55 | 55 | 18 |
| | Blackburn | sp | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 25 | 0 | 0 |
| | Brieske | sp | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 17 | 0 | 0 |
| n | Bundy | sp | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 30 | 0 | 0 |
| | Ashcraft | sp | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 24 | 0 | 0 |
| f | Cabrera,E | sp | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 18 | 0 | 0 |
| | Peters* | mr | 6 | 5 | .833 | 1 | .167 | 0 | 7 | 2 | .286 | 24 | 23 | 11 |
| n | Odorizzi | sp | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 26 | 0 | 0 |
| | Stephenson,R | mr | 2 | 1 | .500 | 1 | .500 | 3 | 3 | 0 | .000 | 11 | 11 | 4 |
| | Junk | sp | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 6 | 0 | 0 |
| | Gibaut | mr | 2 | 1 | .500 | 1 | .500 | 1 | 3 | 2 | .667 | 10 | 10 | 4 |
| | Strickland | mr | 0 | 0 | .000 | 0 | .000 | 0 | 6 | 2 | .333 | 4 | 4 | 2 |
| | Familia | mr | 0 | 0 | .000 | 0 | .000 | 0 | 2 | 2 | 1.000 | 4 | 4 | 0 |
|   | Total |   | 60 | 36 | .600 | 22 | .367 | 71 | 220 | 76 | .345 | 162 | 412 | 160 |