(since 2007)
(min. 50 IP)
| PPI, Pitcher (Years) |
| 14.37, Ben Nelson (2010-13) |
| 14.97, Jake Lewis (2009-12) |
| 15.04, Jack Nikko (2011-13) |
| 15.08, Mason Flick (2017-20) |
| 15.23, Kennan Reyelts (2021-22) |
| 15.47, Alex Oachs (2008-11) |
| 15.63, Michael Gales (2013-15) |
| 16.21, Grant Walker (2019-22) |
| 16.23, Charlie Habermann (2007-09) |
| 17.35, John Aase (2014-17) |
| 17.36, Zach Gunderson (2015-19) |
| 18.02, Matt Morris (2013-16) |