| Career Winning Percentage (Min. 10 decisions, 2 seasons) |
||||
| Rank | Name | Seasons | Record | W% |
| 1 | Erik Arnesen | 2003-06 | 14-3 | .824 |
| 2 | John Miller | 1967-69 | 9-3 | .750 |
| 3 | Wayne Faas | 1966-69 | 8-3 | .727 |
| 4 | Chris McGrady | 1991-94 | 10-5 | .667 |
| T5 | Mike Zeigler | 1965-68 | 8-4 | .667 |
| Dave Kerestly | 1970-72 | 8-4 | .667 | |
| 7 | Cory Metcalf | 2008-11 | 20-11 | .645 |
| 8 | Larry Sawyer | 1967-70 | 17-10 | .630 |
| T9 | Todd Alexander | 1961-64 | 6-4 | .600 |
| Tim Hussar | 1998-99 | 6-4 | .600 | |
| Eric Bowser | 1992-93 | 6-4 | .600 | |
| Single-Season Winning Percentage (Min. 5 decisions) |
||||
| Rank | Name | Season | Record | W% |
| 1 | Cory Metcalf | 2011 | 10-0 | 1.000 |
| T2 | Erik Arnesen | 2006 | 9-0 | 1.000 |
| John Bini | 2016 | 9-0 | 1.000 | |
| 4 | John Miller | 1968 | 5-0 | 1.000 |
| 5 | Jeff Meyers | 1999 | 6-1 | .857 |
| T6 | George Geis | 1965 | 5-1 | .833 |
| Larry Sawyer | 1967 | 4-1 | .800 | |
| Bob Schleiden | 1974 | 4-1 | .800 | |
| 9 | Russ Laubach | 1982 | 4-1 | .800 |
| 10 | Dave Meadows | 1991 | 6-2 | .750 |