|
| Lowest Team ERA, Season (1991-2012) |
| 1.15 |
Kimberly | 2008 |
| 1.32 |
Appleton North | 2011 |
| 1.35 |
Kimberly | 2012 |
| 1.51 |
Oshkosh West | 1997 |
1.65 |
Oshkosh West | 1996 |
1.82 |
Appleton North | 2002 |
1.87 |
Appleton North | 2001 |
1.86 |
Fond du Lac | 2010 |
1.89 |
Fond du Lac | 1998 |
1.91 |
Appleton North | 2000 |
| Lowest ERA, Season (1991-2012) (16 innings minimum) |
| 0.00 |
Tony Wong | AW | 2005 |
| 0.28 |
Shane Fonder | Men | 1993 |
| 0.31 |
Brad Schreiber | Kim | 2009 |
0.33 |
Steve Fauk | FdL | 1997 |
0.34 |
Gary Thompson | Kim | 2001 |
0.41 |
Mike Holland | OW | 2000 |
0.72 |
Bryce Bellin | Kim | 2010 |
0.76 |
Ted Smith | AE | 2003 |
0.78 |
Evan Fisher | FdL | 2003 |
0.81 |
Tim Kelly | Kau | 1993 |
| Lowest ERA, Career (1991-2012) (30 innings minimum) |
0.56 |
Brad Schreiber | Kim |
0.60 |
Chris Litvay | AN |
0.76 |
Evan Fisher | FdL |
0.85 |
Adam Williams | AW |
1.11 |
Rick Cavaiani | AN |
1.14 |
Ryan Kuepper | Men |
1.17 |
Steve Fauk | FdL |
1.17 |
Kory Kreuger | AW |
1.18 |
Andy Kimball | OW |
1.24 |
Tom Zehren | Kim |
1.27 |
Ted Smith | AE |
1.29 |
Brian Fassbender | AW |
1.29 |
Alex O'Connor | AN |
1.31 |
Tony Wong | AW |
1.34 |
Randy Reed | AE |
1.40 |
Jon McNamara | AW |
1.42 |
Matt Ropchak | AE |
1.42 |
Chad Pierce | FdL |
1.47 |
Luke Tyson | AW |
1.47 |
Dan Williams | OW |