| Individual Player Season and Career Earned Run Average Records (ERA) | |||||||
|---|---|---|---|---|---|---|---|
| Season (Min 25 IP & 5 app) | Career (Min 2 Seasons / 50 IP / 10 app) | ||||||
| # | Player | Season | ERA | # | Player | Seasons | ERA |
| 1 | Stephen Nikolaus | 2016 | 1.05 | 1 | Luke Barren | 2017-2019 | 1.96 |
| 2 | Luke Barren | 2018 | 1.22 | 2 | Kyle Davis | 2015-2017 | 2.09 |
| 3 | Jackson Everman | 2011 | 1.45 | 3 | Max Vosters | 2021-2022 | 2.42 |
| 4 | Jake Barren | 2016 | 1.56 | 4 | Alex Koons | 2022-2025 | 2.53 |
| 5 | Jonathan Ritch | 2025 | 1.63 | 5 | Ethan Williams | 2022-2024 | 2.61 |
| 6 | Luke Barren | 2019 | 1.69 | 6 | Jackson Everman | 2010-2013 | 2.70 |
| 7 | Caleb Jenkins | 2019 | 1.75 | 7 | Jake Norris | 2016-2018 | 2.78 |
| 8 | Logan Minamyer | 2024 | 1.80 | 8 | Connor Davis | 2014-2016 | 3.04 |
| 9 | Kyle Davis | 2017 | 1.81 | 9 | Jack Rasmussen | 2016-2018 | 3.11 |
| 10 | Jack Rasmussen | 2016 | 1.96 | 10 | Brock DuPont | 2014-2015 | 3.19 |
