Since 1960, Shawn Sedlacek has the worst ERA, with an ERA of 6.72.

Interpreted as:

highest era with a minimum of 0.5 IP per team game by a player + since 1960

	NAME	ERA	G	W	L	W%	GS	SO	CG	SHO	SV	IP	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	Shawn Sedlacek S. Sedlacek	6.72	16	3	5	.375	14	52	0	0	0	84.1	99	63	64	16	36	6	1	2	381	5	5.55	3.84	1.44	1.71	13.6	9.4	1.60	.306	6.83	142	5.68	127	10.57	-10.7
2	Ken Cloude K. Cloude	6.56	71	16	16	.500	45	195	0	0	1	278.2	334	203	215	47	152	11	8	9	1,303	12	6.30	4.91	1.28	1.52	15.0	11.7	1.74	.320	6.94	141	5.67	123	10.79	-32.4
3	Dan Perkins D. Perkins	6.54	29	1	7	.125	12	44	0	0	0	86.2	117	63	69	14	43	5	7	0	413	6	4.57	4.47	1.02	1.45	10.7	10.4	1.85	.336	7.17	131	5.87	124	12.15	-11
4	Chase Dollander C. Dollander	6.35	16	2	9	.182	16	57	0	0	0	73.2	79	52	56	15	36	2	0	0	332	1	6.96	4.40	1.58	1.83	17.2	10.8	1.56	.288	6.84	134	5.75	134	9.65	-11.2
5	Wade Taylor W. Taylor	6.27	23	7	12	.368	22	72	0	0	0	116.1	144	81	85	13	53	7	0	0	528	3	5.57	4.10	1.36	1.01	13.6	10.0	1.69	.342	6.58	153	4.61	112	11.14	-6.1
6	Ray Daviault R. Daviault	6.22	36	1	5	.167	3	51	0	0	0	81.0	92	56	64	14	48	4	14	1	377	6	5.67	5.33	1.06	1.56	13.5	12.7	1.73	.300	7.11	152	5.53	139	10.22	-13.1
7	Jeff Byrd J. Byrd	6.18	17	2	13	.133	17	40	1	0	0	87.1	98	60	68	5	68	0	0	1	417	3	4.12	7.01	0.59	0.52	9.6	16.3	1.90	.306	7.01	147	4.89	118	10.10	-7.1
8	Ruben Quevedo R. Quevedo	6.15	66	14	30	.318	58	237	2	1	0	326.1	364	223	243	70	175	7	1	12	1,501	9	6.54	4.83	1.35	1.93	15.8	11.7	1.65	.291	6.70	143	6.03	137	10.04	-58.2
9	Phil Huffman P. Huffman	6.03	33	6	18	.250	32	58	2	1	0	177.2	227	119	138	26	73	0	0	1	828	5	2.94	3.70	0.79	1.32	7.0	8.8	1.69	.300	6.99	138	5.20	122	11.50	-18
10	John Snyder J. Snyder	6.01	63	19	24	.442	62	188	2	0	0	342.2	410	229	247	49	149	17	0	11	1,565	19	4.94	3.91	1.26	1.29	12.0	9.5	1.63	.311	6.49	128	5.34	113	10.77	-23.4
11	Johnny Kucks J. Kucks	6.00	31	4	10	.286	17	38	1	0	0	114.0	140	76	85	22	43	1	5	2	518	2	3.00	3.39	0.88	1.74	7.3	8.3	1.61	.285	6.71	149	5.53	133	11.05	-16.5
12	Ryan Rupe R. Rupe	5.85	89	24	38	.387	84	355	2	0	0	476.2	514	310	336	81	162	42	0	5	2,101	21	6.70	3.06	2.19	1.53	16.9	7.7	1.42	.296	6.34	125	5.07	111	9.70	-26
13	Sid Roberson S. Roberson	5.76	26	6	4	.600	13	40	0	0	0	84.1	102	54	55	16	37	8	8	3	379	3	4.27	3.95	1.08	1.71	10.6	9.8	1.65	.309	5.87	119	6.22	133	10.89	-14.4
14	Rob Bell R. Bell	5.71	151	34	37	.479	108	421	2	0	0	686.0	757	435	465	125	288	21	15	13	3,062	42	5.52	3.78	1.46	1.64	13.7	9.4	1.52	.286	6.10	124	5.55	121	9.93	-72.8
15	Dan Wright D. Wright	5.65	70	20	26	.435	64	225	1	1	1	366.2	393	230	249	65	167	13	2	5	1,638	21	5.52	4.10	1.35	1.60	13.7	10.2	1.53	.281	6.11	123	5.54	120	9.65	-35.7
16	Colton Gordon C. Gordon	5.64	15	4	4	.500	13	62	0	0	0	68.2	91	43	46	17	13	2	1	2	310	3	8.13	1.70	4.77	2.23	20.0	4.2	1.51	.343	6.03	140	5.17	125	11.93	-8.1
17	Bryan Rekar B. Rekar	5.62	131	25	49	.338	108	383	4	0	0	655.0	788	409	451	99	208	25	5	7	2,927	24	5.26	2.86	1.84	1.36	13.1	7.1	1.52	.311	6.20	116	4.97	107	10.83	-20.7
18	Todd Van Poppel T. Van Poppel	5.58	359	40	52	.435	98	711	2	1	4	907.0	944	562	587	143	461	22	84	21	4,049	47	7.06	4.57	1.54	1.42	17.6	11.4	1.55	.295	5.82	123	5.15	112	9.37	-57.9
19	Kyle Davies K. Davies	5.57	152	43	65	.398	144	547	3	0	0	770.1	879	477	512	99	367	22	3	13	3,488	42	6.39	4.29	1.49	1.16	15.7	10.5	1.62	.318	5.98	128	4.87	114	10.27	-52.5
20	Oswaldo Peraza O. Peraza	5.55	19	5	7	.417	15	61	1	0	0	86.0	98	53	62	10	37	2	0	2	392	4	6.38	3.87	1.65	1.05	15.6	9.4	1.57	.312	6.49	143	4.21	107	10.26	-2.4
21	Frankie Rodriguez F. Rodriguez	5.53	184	29	39	.426	82	371	3	0	5	654.0	737	402	444	76	282	21	31	17	2,914	29	5.11	3.88	1.32	1.05	12.7	9.7	1.56	.305	6.11	115	4.89	104	10.14	-14
22	Runelvys Hernandez R. Hernandez	5.50	82	25	36	.410	82	246	1	1	0	454.2	515	278	294	61	188	20	0	1	2,025	11	4.87	3.72	1.31	1.21	12.1	9.3	1.55	.301	5.82	121	5.07	115	10.19	-32.6
23	Mike Oquist M. Oquist	5.46	133	25	31	.446	79	351	1	0	0	555.0	623	337	348	73	243	21	13	19	2,492	14	5.69	3.94	1.44	1.18	14.1	9.8	1.56	.305	5.64	118	4.99	108	10.10	-22.8
24	Paul Rigdon P. Rigdon	5.45	32	8	10	.444	31	112	0	0	0	166.2	175	101	104	31	81	4	0	11	741	3	6.05	4.37	1.38	1.67	15.1	10.9	1.54	.281	5.62	120	5.69	124	9.45	-19.9
25	Casey Fossum C. Fossum	5.45	237	40	53	.430	120	607	0	0	2	786.0	873	476	535	114	319	63	35	14	3,537	28	6.95	3.65	1.90	1.31	17.2	9.0	1.52	.312	6.13	122	4.86	110	10.00	-40.5