Felix Hernandez played 15 seasons for the Mariners. He had 169 wins, 136 losses, an ERA of 3.42 and 2,524 strikeouts. He won 1 Cy Young award.
| 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 |  | F. Hernandez | 2005 | 12 | 4 | 4 | .500 | 12 | 2.67 | 77 | 0 | 0 | 0 | 84.1 | 61 | 25 | 26 | 5 | 23 | 2 | 0 | 0 | 328 | 3 | 8.22 | 2.45 | 3.35 | 0.53 | 23.5 | 7.0 | 1.00 | .253 | 2.77 | 64 | 2.84 | 67 | 6.51 | 13.5 | |
| 2 | | F. Hernandez | 2006 | 31 | 12 | 14 | .462 | 31 | 4.52 | 176 | 2 | 1 | 0 | 191.0 | 195 | 96 | 105 | 23 | 60 | 6 | 0 | 2 | 816 | 11 | 8.29 | 2.83 | 2.93 | 1.08 | 21.6 | 7.4 | 1.34 | .312 | 4.95 | 103 | 3.90 | 88 | 9.19 | 11.2 | |
| 3 | | F. Hernandez | 2007 | 30 | 14 | 7 | .667 | 30 | 3.92 | 165 | 1 | 1 | 0 | 190.1 | 209 | 83 | 88 | 20 | 53 | 3 | 0 | 4 | 808 | 7 | 7.80 | 2.51 | 3.11 | 0.95 | 20.4 | 6.6 | 1.38 | .333 | 4.16 | 90 | 3.74 | 86 | 9.88 | 12.8 | |
| 4 | | F. Hernandez | 2008 | 31 | 9 | 11 | .450 | 31 | 3.45 | 175 | 2 | 0 | 0 | 200.2 | 198 | 77 | 85 | 17 | 80 | 8 | 0 | 7 | 857 | 8 | 7.85 | 3.59 | 2.19 | 0.76 | 20.4 | 9.3 | 1.39 | .314 | 3.81 | 83 | 3.80 | 90 | 8.88 | 9.7 | |
| 5 | | F. Hernandez | 2009 | 34 | 19 | 5 | .792 | 34 | 2.49 | 217 | 2 | 1 | 0 | 238.2 | 200 | 66 | 81 | 15 | 71 | 8 | 0 | 0 | 977 | 17 | 8.18 | 2.68 | 3.06 | 0.57 | 22.2 | 7.3 | 1.14 | .278 | 3.05 | 58 | 3.08 | 71 | 7.54 | 33.4 | |
| 6 | | F. Hernandez | 2010 | 34 | 13 | 12 | .520 | 34 | 2.27 | 232 | 6 | 1 | 0 | 249.2 | 194 | 63 | 80 | 17 | 70 | 8 | 0 | 1 | 1,001 | 14 | 8.36 | 2.52 | 3.31 | 0.61 | 23.2 | 7.0 | 1.06 | .263 | 2.88 | 58 | 3.04 | 75 | 6.99 | 28.4 | |
| 7 | | F. Hernandez | 2011 | 33 | 14 | 14 | .500 | 33 | 3.47 | 222 | 5 | 0 | 0 | 233.2 | 218 | 90 | 99 | 19 | 67 | 7 | 0 | 0 | 964 | 12 | 8.55 | 2.58 | 3.31 | 0.73 | 23.0 | 7.0 | 1.22 | .307 | 3.81 | 90 | 3.13 | 80 | 8.40 | 20.9 | |
| 8 | | F. Hernandez | 2012 | 33 | 13 | 9 | .591 | 33 | 3.06 | 223 | 5 | 5 | 0 | 232.0 | 209 | 79 | 84 | 14 | 56 | 12 | 0 | 0 | 939 | 13 | 8.65 | 2.17 | 3.98 | 0.54 | 23.7 | 6.0 | 1.14 | .308 | 3.26 | 80 | 2.83 | 71 | 8.11 | 31 | |
| 9 | | F. Hernandez | 2013 | 31 | 12 | 10 | .545 | 31 | 3.04 | 216 | 0 | 0 | 0 | 204.1 | 185 | 69 | 74 | 15 | 46 | 3 | 0 | 1 | 823 | 13 | 9.51 | 2.03 | 4.70 | 0.66 | 26.2 | 5.6 | 1.13 | .313 | 3.26 | 79 | 2.60 | 67 | 8.15 | 29.5 | |
| 10 | | F. Hernandez | 2014 | 34 | 15 | 6 | .714 | 34 | 2.14 | 248 | 0 | 0 | 0 | 236.0 | 170 | 56 | 68 | 16 | 46 | 5 | 0 | 1 | 912 | 18 | 9.46 | 1.75 | 5.39 | 0.61 | 27.2 | 5.0 | 0.92 | .258 | 2.59 | 58 | 2.56 | 69 | 6.48 | 30.7 | |
| 11 | | F. Hernandez | 2015 | 31 | 18 | 9 | .667 | 31 | 3.53 | 191 | 2 | 2 | 0 | 201.2 | 180 | 79 | 80 | 23 | 58 | 9 | 0 | 0 | 826 | 10 | 8.52 | 2.59 | 3.29 | 1.03 | 23.1 | 7.0 | 1.18 | .288 | 3.57 | 92 | 3.71 | 94 | 8.03 | 5.4 | |
| 12 | | F. Hernandez | 2016 | 25 | 11 | 8 | .579 | 25 | 3.82 | 122 | 0 | 0 | 0 | 153.1 | 138 | 65 | 76 | 19 | 65 | 10 | 0 | 0 | 655 | 6 | 7.16 | 3.82 | 1.88 | 1.12 | 18.6 | 9.9 | 1.32 | .271 | 4.46 | 96 | 4.63 | 111 | 8.10 | -8.3 | |
| 13 | | F. Hernandez | 2017 | 16 | 6 | 5 | .545 | 16 | 4.36 | 78 | 0 | 0 | 0 | 86.2 | 86 | 42 | 46 | 17 | 26 | 6 | 0 | 0 | 368 | 8 | 8.10 | 2.70 | 3.00 | 1.77 | 21.2 | 7.1 | 1.29 | .286 | 4.78 | 104 | 5.01 | 117 | 8.93 | -7 | |
| 14 | | F. Hernandez | 2018 | 29 | 8 | 14 | .364 | 28 | 5.55 | 125 | 0 | 0 | 0 | 155.2 | 159 | 96 | 107 | 27 | 59 | 12 | 0 | 0 | 685 | 11 | 7.23 | 3.41 | 2.12 | 1.56 | 18.2 | 8.6 | 1.40 | .286 | 6.19 | 136 | 5.17 | 124 | 9.19 | -17.3 | |
| 15 | | F. Hernandez | 2019 | 15 | 1 | 8 | .111 | 15 | 6.40 | 57 | 0 | 0 | 0 | 71.2 | 85 | 51 | 58 | 17 | 25 | 6 | 0 | 0 | 325 | 5 | 7.16 | 3.14 | 2.28 | 2.13 | 17.5 | 7.7 | 1.53 | .309 | 7.28 | 145 | 5.99 | 134 | 10.67 | -12.4 | |
| Total | 419 | 169 | 136 | .554 | 418 | 3.42 | 2,524 | 25 | 11 | 0 | 2729.2 | 2,487 | 1,037 | 1,157 | 264 | 805 | 105 | 0 | 16 | 11,284 | 156 | 8.32 | 2.65 | 3.14 | 0.87 | 22.4 | 7.1 | 1.21 | .293 | 3.81 | 84 | 3.52 | 85 | 8.20 | 181.5 |
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46 | 28 | .622 | ||
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