Edwin Díaz has a record of 4-14 with an ERA of 2.64, 301 strikeouts and 109 saves in 188 appearances for the Mariners in his career.
| NAME | SEASON | TM | G | W | L | W% | GS | ERA | SO | CG | SHO | SV | IP | H | ER | R | HR | BB | HBP | GF | IBB | TBF | WP | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | WHIP | BABIP | RA | ERA- | FIP | FIP- | H/9 | PRAA | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | E. Díaz | 2016 |  SEA | 49 | 0 | 4 | .000 | 0 | 2.79 | 88 | 0 | 0 | 18 | 51.2 | 45 | 16 | 16 | 5 | 15 | 3 | 23 | 2 | 217 | 6 | 15.33 | 2.61 | 5.87 | 0.87 | 40.6 | 6.9 | 1.16 | .377 | 2.79 | 70 | 2.04 | 49 | 7.84 | 12.4 |
| 2 | | E. Díaz | 2017 | SEA | 66 | 4 | 6 | .400 | 0 | 3.27 | 89 | 0 | 0 | 34 | 66.0 | 44 | 24 | 28 | 10 | 32 | 3 | 52 | 2 | 278 | 3 | 12.14 | 4.36 | 2.78 | 1.36 | 32.0 | 11.5 | 1.15 | .236 | 3.82 | 78 | 4.01 | 93 | 6.00 | 2.1 |
| 3 | | E. Díaz | 2018 | SEA | 73 | 0 | 4 | .000 | 0 | 1.96 | 124 | 0 | 0 | 57 | 73.1 | 41 | 16 | 17 | 5 | 17 | 6 | 65 | 0 | 280 | 3 | 15.22 | 2.09 | 7.29 | 0.61 | 44.3 | 6.1 | 0.79 | .281 | 2.09 | 48 | 1.60 | 38 | 5.03 | 21.3 |
| Total | 188 | 4 | 14 | .222 | 0 | 2.64 | 301 | 0 | 0 | 109 | 191.0 | 130 | 56 | 61 | 20 | 64 | 12 | 140 | 4 | 775 | 12 | 14.18 | 3.02 | 4.70 | 0.94 | 38.8 | 8.3 | 1.02 | .291 | 2.87 | 64 | 2.55 | 60 | 6.13 | 35.7 |
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