Corey Kluber ERA in 2023

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7.042023 Regular Season

Corey Kluber posted a 7.04 ERA in the 2023 regular season.

• 12th-best of Corey Kluber's 13 seasons on file; the best is 0.00 in 2020.
• Up 2.70 from 4.34 in 2022.

Figures come from ESPN's box scores and were last read on September 22, 2026.

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Corey Kluber ERA in 2023, season by season

Season↓	Team↓	GP↓iGP: Games the player appeared in, however briefly.	W↓iW: Games in which this pitcher was credited with the win.	L↓iL: Games in which this pitcher was charged with the loss.	ERA↓iERA: Earned runs allowed per nine innings pitched — lower is better. Under 3.00 is excellent.	IP↓iIP: Innings pitched. The decimal counts outs, so 6.2 is six innings and two more outs.	K↓iK: Batters this pitcher struck out.	BB↓iBB: Times the batter reached first base on four balls.	WHIP↓iWHIP: Walks and hits allowed per inning pitched — lower is better. Around 1.00 is elite.	SV↓iSV: Games finished by protecting a narrow lead to the last out.
2011	CLE	3	0	0	8.31	4.1	5	3	2.08	0
2012	CLE	12	2	5	5.14	63.0	54	18	1.49	0
2013	CLE	26	11	5	3.85	147.1	136	33	1.26	0
2014	CLE	34	18	9	2.44	235.2	269	51	1.09	0
2015	CLE	32	9	16	3.49	222.0	245	45	1.05	0
2016	CLE	32	18	9	3.14	215.0	227	57	1.06	0
2017	CLE	29	18	4	2.25	203.2	265	36	0.87	0
2018	CLE	33	20	7	2.89	215.0	222	34	0.99	0
2019	CLE	7	2	3	5.80	35.2	38	15	1.65	0
2020	TEX	1	0	0	0.00	1.0	1	1	1.00	0
2021	NYY	16	5	3	3.83	80.0	82	33	1.34	0
2022	TB	31	10	10	4.34	164.0	139	21	1.21	0
2023	BOS	15	3	6	7.04	55.0	42	21	1.64	1

What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV