League Leaders
| Name | Team | Year | ERA | WHIP | W | SV | IP | H | ER | BB | K | PAR |
|---|
| Scherzer, Max | Kings | 2021 | 2.49 | 0.860 | 14 | 0 | 173.3 | 116 | 48 | 33 | 231 | 12.23 |
| Hudson, Daniel | Kings | 2021 | 3.38 | 1.125 | 1 | 0 | 8.0 | 6 | 3 | 3 | 12 | 0.14 |
| Wheeler, Zack | Kings | 2021 | 2.78 | 1.008 | 14 | 0 | 213.3 | 169 | 66 | 46 | 247 | 11.09 |
| Barnes, Matt | Kings | 2021 | 3.78 | 1.051 | 6 | 24 | 52.3 | 38 | 22 | 17 | 80 | 2.54 |
| Bradley, Archie | Kings | 2021 | 6.75 | 1.568 | 0 | 0 | 14.7 | 19 | 11 | 4 | 17 | -1.77 |
| McCullers, Lance | Kings | 2021 | 3.16 | 1.220 | 13 | 0 | 162.3 | 122 | 57 | 76 | 185 | 5.82 |
| Stroman, Marcus | Kings | 2021 | 3.11 | 1.200 | 5 | 0 | 98.3 | 92 | 34 | 26 | 97 | 2.52 |
| Garcia, Yimi | Kings | 2021 | 4.44 | 1.196 | 4 | 14 | 52.7 | 47 | 26 | 16 | 56 | -0.89 |
| Montas, Frankie | Kings | 2021 | 3.36 | 1.192 | 10 | 0 | 152.7 | 134 | 57 | 48 | 168 | 4.92 |
| Garrett, Amir | Kings | 2021 | 6.23 | 1.673 | 0 | 7 | 34.7 | 34 | 24 | 24 | 50 | -4.13 |
| Marquez, German | Kings | 2021 | 4.20 | 1.119 | 4 | 0 | 64.3 | 57 | 30 | 15 | 68 | 1.80 |
| Anderson, Ian | Kings | 2021 | 3.76 | 1.327 | 5 | 0 | 83.7 | 73 | 35 | 38 | 84 | 0.82 |
| Rodriguez, Richard | Kings | 2021 | 2.94 | 0.933 | 5 | 14 | 64.3 | 50 | 21 | 10 | 42 | 1.06 |
