| Irish Pitching Records |
| Appearances |
| Career |
| Mark Herd |
| Tim Luskey |
| Don Sauter |
| Bill Heimkes |
| 236 |
| 174 |
| 172 |
| 131 |
| Matt Breyer |
| 132 |
| Season |
| Matt Breyer |
| James Herd |
| John Semar |
| Brian Jenneke |
| 24 |
| 22 |
| 22 |
| 22 |
| Mac Zachow |
| 22 |
| 1999 |
| 1983 |
| 2003 |
| 1995 |
| 2003 |
| Saves |
| Career |
| Don Sauter |
| Matt Breyer |
| Mac Zachow |
| Tim Luskey |
| 21 |
| 18 |
| 16 |
| 13 |
| Mike Herd |
| 13 |
| Season |
| Don Sauter |
| Mike Herd |
| Jeff Schmidt |
| Mac Zachow |
| 5 |
| 5 |
| 5 |
| 5 |
| 1984 |
| 1992 |
| 1993 |
| 2005 |
| Games Started |
| Career |
| Mark Herd |
| Bill Heimkes |
| James Herd |
| Don Sauter |
| 153 |
| 82 |
| 82 |
| 78 |
| Tim Luskey |
| 76 |
| Season |
| Matt Breyer |
| 18 |
| 15 |
| 15 |
| 15 |
| Bill Heimkes |
| 15 |
| 1999 |
| 1971,72 |
| 1993 |
| 1973 |
| 1987,88,89 |
| Innings Pitched |
| Career |
| Don Sauter |
| Mark Herd |
| Tim Luskey |
| Bill Heimkes |
| 1082 |
| 750 2/3 |
| 638 2/3 |
| 552 1/3 |
| James Herd |
| 551 1/3 |
| Season |
| Dan Bergner |
| Mark Herd |
| Terry McGuire |
| Matt Breyer |
| 130 1/3 |
| 124 2/3 |
| 120 2/3 |
| 119 |
| 116 2/3 |
| 1971 |
| 1999 |
| 1987 |
| 1980 |
| 1995 |
| Strikeouts |
| Career |
| Don Sauter |
| Tim Luskey |
| James Herd |
| Mark Herd |
| 873 |
| 673 |
| 601 |
| 466 |
| Terry McGuire |
| 398 |
| Season |
| Terry McGuire |
| Mike Hartmann |
| 159 |
| 158 |
| 151 |
| 138 |
| 1971 |
| 1972 |
| 2003 |
| 1980 |
| Career |
| Mark Herd |
| Mac Zachow |
| Dan Bergner |
| Don Sauter |
| 33 |
| 31 |
| 29 |
| 25 |
| 19 |
| Season |
| 12 |
| 9 |
| 9 |
| 8 |
| 8 |
| 1971 |
| 1999 |
| 1980 |
| 2003 |
| 1972 |
| John Semar |
| Wins |
| Career |
| Mark Herd |
| Mac Zachow |
| Matt Breyer |
| Don Sauter |
| 88 |
| 54 |
| 47 |
| 45 |
| 44 |
| Season |
| Brian Jenneke |
| 14 |
| 12 |
| 11 |
| 1980 |
| 2003 |
| 2001 |
| Ryan Sauter |
| Matt Breyer |
| 13 |
| 1999 |
| Mac Zachow |
| Dan Bergner |
| Walks |
| Career |
| Mark Herd |
| Don Sauter |
| Bill Heimkes |
| Tim Luskey |
| 537 |
| 444 |
| 383 |
| 311 |
| James Herd |
| 298 |
| Season |
| Gary Distel |
| Terry McGuire |
| 90 |
| 83 |
| 83 |
| 73 |
| James Herd |
| 69 |
| 1983 |
| 1971 |
| 1983 |
| 1984 |
| 1980 |
| Dan Bergner |
| Mark Herd |
| Terry McGuire |
| Don Sauter |
| Mark Herd |
| Terry McGuire |
| Tim Luskey |
| Dan Bergner |
| Records through 2007 |
| 44 |
| Nick Schatz |
| 133 |
| 2004 |
| Mac Zachow |
| Complete Games |
| Ryan Sauter |
| 19 |
| Terry McGuire |
| Matt Breyer |
| Mac Zachow |
| Mike Hartmann |
| Dan Bergner |