ERA
This record recognizes pitchers who achieved the lowest earned run average (ERA) in a single season, with a minimum of 25 innings pitched to qualify. ERA measures a pitcher’s effectiveness by calculating the average number of earned runs allowed per nine innings. This accomplishment showcases dominance on the mound and consistent performance throughout the season.
| Rank | Name | ERA | Year |
|---|---|---|---|
| 1 | Chad Summers | 0.28 | 2013 |
| 2 | Kirk Berger | 0.30 | 1968 |
| 3 | Scott Berger | 0.62 | 1971 |
| 4 | Brad Beyer | 0.73 | 1974 |
| 5 | Matt Swarmer | 0.81 | 2012 |
| 6 | Brad Beyer | 0.84 | 1975 |
| 7 | Tom Herman | 0.90 | 1980 |
| 8 | Tyler Minick | 0.93 | 2022 |
| 9 | Zach Lutz | 0.96 | 2004 |
| 10 | Ryan Gerber | 1.00 | 2002 |
| 11 | Duane Good | 1.02 | 1971 |
| 12 | Denny Hoffman | 1.09 | 1969 |
| 13 | Dave Voigt | 1.11 | 1974 |
| 14 | Connor Maryniak | 1.13 | 2021 |
| 15 | Scott Williams | 1.15 | 1971 |
| 15 | Skip Dunkelberger | 1.15 | 1976 |
| 15 | Mike Hawk | 1.15 | 1980 |
| 16 | Noah Weber | 1.18 | 2016 |
| 17 | Bruce Sturgis | 1.22 | 1976 |
| 18 | Noah Weber | 1.25 | 2017 |
| 19 | Phil Futrick | 1.34 | 2002 |
| 20 | Joe Palange | 1.41 | 2011 |
| 21 | Denny Redcay | 1.45 | 1967 |
| 22 | Dave Voigt | 1.48 | 1973 |
| 23 | Ethan Grim | 1.52 | 2022 |
| 24 | Tanner DeLucia | 1.53 | 2014 |
| 25 | Alexander Velez | 1.54 | 2022 |
| 26 | Mike Liever | 1.68 | 1970 |
| 26 | John Catchmark | 1.68 | 2014 |
| 26 | John Catchmark | 1.68 | 2015 |
| 27 | Scott Merz | 1.70 | 2011 |
| 27 | Noah Angstadt | 1.70 | 2017 |
| 27 | Bryce Detwiler | 1.70 | 2024 |
| 28 | Zach Lutz | 1.74 | 2003 |
| 29 | Ethan Grim | 1.77 | 2024 |
| 30 | Skip Dunkelberger | 1.83 | 1975 |
| 31 | Eric Mock | 1.84 | 2014 |
| 32 | Ryan Gerber | 1.89 | 2003 |
| 33 | Jeff Mosser | 1.90 | 1969 |
| 34 | Rod Snyder | 1.91 | 1986 |
| 35 | Brad Beyer | 1.92 | 1973 |
| 36 | Tanner Campbell | 1.93 | 2015 |
| 37 | Tyler Minick | 1.96 | 2023 |
| 38 | Frank Anderson | 2.00 | 1997 |
| 39 | Mark Crocona | 2.06 | 1995 |
| 40 | Donald Lorah | 2.15 | 1972 |
| 40 | Nick Dareneau | 2.15 | 1997 |
| 41 | Sam Eagleson | 2.17 | 2008 |
| 42 | Ryan Renninger | 2.20 | 1993 |
| 43 | Don Kemp | 2.24 | 1983 |