Single-A Single-Season Earned Run Average Record Progression

Every season that raised the bar, and the leader in every season between.

The Single-A single-season earned run average record is 1.41, set by Salomon Torres in 1991. It has stood for 35 years. The mark has been raised 1 times since 1990.

ERA W SO SV WHIP IP K/9 BB/9 K/BB SHO CG GS G L BB W-L%

Record Holders

2 marks since 1990

Year	Player	ERA	Stood for
1991	Salomon Torres	1.41	still standing
1990	Jeffrey Hoffman	1.47	1 year

The earliest marks here are records only in the sense that nobody had done better yet. Season length, schedule and the rules themselves have all changed, so a figure from the 1870s is not comparable with a modern one and is not offered as though it were.

Every Season

36 seasons

Year	Leader	ERA
2026	Evan Siary	3.30
2025	Melvin Hernandez	2.00
2024	Jake Brooks	2.28
2023	Michael Prosecky	2.72
2022	Will Dion	2.26
2021	Joey Estes	2.91
2019	Seth Corry	1.76
2018	Denyi Reyes	1.89
2017	Clark Beeker	2.03
2016	Brannon Easterling	1.86
2015	Yeudy Garcia	2.10
2014	Kevin Ziomek	2.27
2013	Connor Sadzeck	2.25
2012	Justin Nicolino	2.46
2011	Greg Billo	1.93
2010	Robbie Erlin	2.12
2009	Brett Lorin	2.20
2008	Madison Bumgarner	1.46
2007	Kevin Pucetas	1.86
2006	Will Inman	1.71
2005	Ray Liotta	2.26
2004	Steven Bondurant	2.08
2003	Jonathan Connolly	1.41
2002	Dontrelle Willis	1.83
2001	Corwin Malone	2.00
2000	Calvin Chipperfield	2.13
1999	Jason Standridge	2.02
1998	Jason Childers	1.92
1997	Craig Quintal	1.96
1996	Britt Reames	1.90
1995	Mike Kusiewicz	2.06
1994	Will Cunnane	1.43
1993	J. J. Thobe	1.91
1992	Travis Baptist	1.45
1991	Salomon Torres	1.41	new record
1990	Jeffrey Hoffman	1.47	new record