| K/9 | Player | Year |
| 13.4099 | |
| 13.2047 | |
| 12.5820* | |
| 12.5590 | |
| 12.3453 | |
| 12.2958 | |
| 12.1187 | |
| 12.0589 | |
| 11.7788 | |
| 11.5615 | |
| 11.4803^ | |
| 11.3945 | |
| 11.3743 | |
| 11.3460* | |
| 11.3189^ | |
| 11.2883 | |
| 11.2027* | |
| 11.1010 | |
| 10.9745* | |
| 10.9666 | |
| 10.9286* | |
| 10.8564 | |
| 10.7910 | |
| 10.7143 | |
| 10.6744 | |
| 10.6242 | |
| 10.5736^ | |
| 10.5607^ | |
| | K/9 | Player | Year |
| 10.5461^ | |
| 10.5066* | |
| 10.4605* | |
| 10.4338 | |
| 10.4261^ | |
| 10.4246* | |
| 10.4202 | |
| 10.4081* | |
| 10.3935 | |
| 10.3929 | |
| 10.3505^ | |
| 10.3122 | |
| 10.2740 | |
| 10.2642^ | |
| 10.2462 | |
| 10.2423^ | |
| 10.2353^ | |
| 10.1921 | |
| 10.1520 | |
| 10.1489 | |
| 10.1314^ | |
| 10.1141 | |
| 10.0875* | |
| 10.0496 | |
| 10.0400 | |
| 10.0253* | |
| 10.0024 | |
| 10.0000 | |
|