worst era in a season with a minimum of 20 innings pitched since 1980

Since 1980, Orel Hershiser has the worst ERA with 20.0+ innings pitched in a season, with an ERA of 13.14 in 2000.

Interpreted as:

worst era by a player in a season with a minimum of 20 innings pitched since 1980

	NAME	ERA	IP	SEASON	TM	G	W	L	W%	GS	SO	CG	SHO	SV	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Orel Hershiser O. Hershiser	13.14	24.2	2000	LAD	10	1	5	.167	6	13	0	0	0	42	36	36	5	14	11	1	1	136	2	4.74	5.11	0.93	1.82	9.6	10.3	2.27	.398	13.14	305	7.75	166	15.32	-8.6
2	Albie Lopez A. Lopez	12.71	22.2	2003	KCR	15	4	2	.667	0	15	0	0	0	41	32	32	7	17	0	3	1	125	3	5.96	6.75	0.88	2.78	12.0	13.6	2.56	.395	12.71	267	7.97	175	16.28	-8.4
3	Jim Brower J. Brower	12.15	20.0	2006	TOT	18	0	1	.000	0	14	0	0	0	32	27	27	2	14	5	4	1	106	2	6.30	6.30	1.00	0.90	13.2	13.2	2.30	.423	12.15	273	5.89	129	14.40	-2.9
4	Rick Langford R. Langford	12.15	20.0	1983	OAK	7	0	4	.000	7	2	0	0	0	43	27	28	4	10	2	0	1	112	0	0.90	4.50	0.20	1.80	1.8	8.9	2.65	.415	12.60	315	6.94	176	19.35	-6.7
5	Blaine Boyer B. Boyer	12.05	21.2	2018	KCR	21	2	1	.667	0	9	0	0	1	32	29	33	7	13	0	8	3	109	0	3.74	5.40	0.69	2.91	8.3	11.9	2.08	.313	13.71	277	8.32	201	13.29	-10.3
6	Ty Blach T. Blach	12.00	27.0	2019	TOT	7	1	3	.250	5	20	0	0	0	46	36	37	8	17	0	1	0	139	2	6.67	5.67	1.18	2.67	14.4	12.2	2.33	.404	12.33	264	7.46	160	15.33	-8.1
7	Paul Abbott P. Abbott	11.96	26.1	2002	SEA	7	1	3	.250	5	22	0	0	0	40	35	36	5	20	1	1	0	137	2	7.52	6.84	1.10	1.71	16.1	14.6	2.28	.393	12.30	285	6.14	144	13.67	-5.6
8	Clint Sodowsky C. Sodowsky	11.84	24.1	1996	DET	7	1	3	.250	7	9	0	0	0	40	32	34	5	20	3	0	0	132	3	3.33	7.40	0.45	1.85	6.8	15.2	2.47	.368	12.58	235	7.93	157	14.79	-7.5
9	Tyler Anderson T. Anderson	11.76	20.2	2019	COL	5	0	3	.000	5	23	0	0	0	33	27	27	8	11	0	0	0	106	0	10.02	4.79	2.09	3.48	21.7	10.4	2.13	.391	11.76	237	7.61	164	14.37	-6.4
10	Dinelson Lamet D. Lamet	11.71	27.2	2023	TOT	17	1	4	.200	4	32	0	0	0	42	36	38	7	23	1	1	0	145	5	10.41	7.48	1.39	2.28	22.1	15.9	2.35	.427	12.36	238	6.83	150	13.66	-6.6
11	Dillon Overton D. Overton	11.47	24.1	2016	OAK	7	1	3	.250	5	17	0	0	0	48	31	31	12	7	1	2	0	128	1	6.29	2.59	2.43	4.44	13.3	5.5	2.26	.396	11.47	278	9.14	220	17.75	-13.8
12	Denny Stark D. Stark	11.42	26.0	2004	COL	6	0	5	.000	6	10	0	0	0	53	33	43	9	18	0	0	3	150	1	3.46	6.23	0.56	3.12	6.7	12.0	2.73	.389	14.88	237	8.85	190	18.35	-11.3
13	Dave Hamilton D. Hamilton	11.40	30.0	1980	OAK	21	0	3	.000	1	23	0	0	0	44	38	39	6	28	3	3	2	164	0	6.90	8.40	0.82	1.80	14.0	17.1	2.40	.365	11.70	298	6.91	173	13.20	-9.9
14	Jackson Kowar J. Kowar	11.27	30.1	2021	KCR	9	0	6	.000	8	29	0	0	0	43	38	38	7	20	2	1	0	154	8	8.60	5.93	1.45	2.08	18.8	13.0	2.08	.375	11.27	251	6.43	152	12.76	-7.5
15	Scott Kamieniecki S. Kamieniecki	11.12	22.2	1996	NYY	7	1	2	.333	5	15	0	0	0	36	28	30	6	19	2	0	1	120	1	5.96	7.54	0.79	2.38	12.5	15.8	2.43	.385	11.91	227	8.06	167	14.29	-8.4
16	Ryan Bowen R. Bowen	10.96	33.2	1992	HOU	11	0	7	.000	9	22	0	0	0	48	41	43	8	30	2	2	3	179	5	5.88	8.02	0.73	2.14	12.3	16.8	2.32	.342	11.50	326	7.41	222	12.83	-16.1
17	Mike Lincoln M. Lincoln	10.89	20.2	2000	MIN	8	0	3	.000	4	15	0	0	0	36	25	25	10	13	2	1	0	109	1	6.53	5.66	1.15	4.35	13.8	11.9	2.37	.377	10.89	217	10.14	215	15.68	-12.7
18	Tom Mastny T. Mastny	10.80	20.0	2008	CLE	14	2	2	.500	1	19	0	0	0	28	24	24	6	11	0	4	2	100	0	8.55	4.95	1.73	2.70	19.0	11.0	1.95	.344	10.80	251	6.77	160	12.60	-5.8
19	Todd Frohwirth T. Frohwirth	10.80	26.2	1994	BOS	22	0	3	.000	0	13	0	0	1	40	32	36	3	17	2	8	2	141	1	4.39	5.74	0.76	1.01	9.2	12.1	2.14	.349	12.15	216	5.75	123	13.50	-3.2
20	Brian Matusz B. Matusz	10.69	49.2	2011	BAL	12	1	9	.100	12	38	0	0	0	81	59	60	18	24	0	0	1	245	0	6.89	4.35	1.58	3.26	15.5	9.8	2.11	.382	10.87	255	7.65	182	14.68	-18.2
21	Roy Halladay R. Halladay	10.64	67.2	2000	TOR	19	4	7	.364	13	44	0	0	0	107	80	87	14	42	2	4	0	349	6	5.85	5.59	1.05	1.86	12.6	12.0	2.20	.377	11.57	212	6.47	134	14.23	-12.3
22	Elvin Rodríguez E. Rodríguez	10.62	29.2	2022	DET	7	0	4	.000	5	25	0	0	0	42	35	35	12	15	1	0	1	143	1	7.58	4.55	1.67	3.64	17.5	10.5	1.92	.333	10.62	274	8.30	213	12.74	-14.7
23	Tim Redding T. Redding	10.57	30.2	2005	TOT	10	0	6	.000	7	19	0	0	0	44	36	41	7	17	2	0	1	154	1	5.58	4.99	1.12	2.05	12.3	11.0	1.99	.339	12.03	268	6.60	161	12.91	-8.9
24	Jaime Navarro J. Navarro	10.53	33.1	2000	TOT	12	0	6	.000	7	16	0	0	0	54	39	44	9	23	1	1	3	174	1	4.32	6.21	0.70	2.43	9.2	13.2	2.31	.360	11.88	221	7.84	164	14.58	-11.2
25	Willie Blair W. Blair	10.50	24.0	2001	DET	9	1	4	.200	4	15	0	0	0	38	28	30	3	11	3	1	3	121	0	5.63	4.13	1.36	1.13	12.4	9.1	2.04	.393	11.25	242	5.17	120	14.25	-2.4