highest era by a pitcher with at least 15 wins in a season after 1950

Since 1951, Shawn Estes has the highest ERA with 15+ pitcher wins in a season, with an ERA of 5.84 in 2004.

	NAME	ERA	W	SEASON	TM	L	W%	G	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 Estes S. Estes	5.84	15	2004	COL	8	.652	34	34	117	1	0	0	202.0	223	131	133	30	105	11	0	5	904	4	5.21	4.68	1.11	1.34	12.9	11.6	1.62	.301	5.93	121	5.54	119	9.94	-17.9
2	Kirk Rueter K. Rueter	5.41	15	1999	SFG	10	.600	33	33	94	1	0	0	184.2	219	111	118	28	55	2	0	2	804	2	4.58	2.68	1.71	1.36	11.7	6.8	1.48	.306	5.75	124	5.00	109	10.67	-9
3	Bobby Witt B. Witt	5.41	16	1996	TEX	12	.571	33	32	157	2	0	0	199.2	235	120	129	28	96	2	1	3	903	4	7.08	4.33	1.64	1.26	17.4	10.6	1.66	.334	5.81	105	4.89	99	10.59	0.6
4	Kevin Ritz K. Ritz	5.28	17	1996	COL	11	.607	35	35	105	2	0	0	213.0	236	125	135	24	105	12	0	3	966	10	4.44	4.44	1.00	1.01	10.9	10.9	1.60	.294	5.70	102	5.29	111	9.97	-10.1
5	Dan Spillner D. Spillner	5.28	16	1980	CLE	11	.593	34	30	100	7	1	0	194.1	225	114	122	23	74	3	1	2	865	10	4.63	3.43	1.35	1.07	11.6	8.6	1.54	.304	5.65	131	4.44	110	10.42	-8.9
6	Charles Nagy C. Nagy	5.22	15	1998	CLE	10	.600	33	33	120	2	0	0	210.1	250	122	139	34	66	9	0	12	930	3	5.13	2.82	1.82	1.45	12.9	7.1	1.50	.308	5.95	110	5.16	113	10.70	-13.9
7	Ramon Ortiz R. Ortiz	5.20	16	2003	ANA	13	.552	32	32	94	1	0	0	180.0	209	104	121	28	63	12	0	0	814	4	4.70	3.15	1.49	1.40	11.5	7.7	1.51	.293	6.05	117	5.25	119	10.45	-17
8	Roger Pavlik R. Pavlik	5.19	15	1996	TEX	8	.652	34	34	127	7	0	0	201.0	216	116	120	28	81	5	0	5	877	8	5.69	3.63	1.57	1.25	14.5	9.2	1.48	.296	5.37	101	4.99	102	9.67	-1.8
9	Kevin Appier K. Appier	5.17	16	1999	TOT	14	.533	34	34	131	1	0	0	209.0	230	120	131	27	84	7	0	4	926	10	5.64	3.62	1.56	1.16	14.1	9.1	1.50	.300	5.64	105	4.86	100	9.90	0.2
10	Jeriome Robertson J. Robertson	5.10	15	2003	HOU	9	.625	32	31	99	0	0	0	160.2	180	91	98	23	64	6	0	8	711	1	5.55	3.59	1.55	1.29	13.9	9.0	1.52	.303	5.49	117	4.96	113	10.08	-10.2
11	Pedro Astacio P. Astacio	5.04	17	1999	COL	11	.607	34	34	210	7	0	0	232.0	258	130	140	38	75	11	0	6	1,008	5	8.15	2.91	2.80	1.47	20.8	7.4	1.44	.326	5.43	91	4.55	90	10.01	13.3
12	Josh Beckett J. Beckett	5.01	16	2006	BOS	11	.593	33	33	158	0	0	0	204.2	191	114	120	36	74	10	0	1	869	11	6.95	3.25	2.14	1.58	18.2	8.5	1.29	.262	5.28	107	5.11	116	8.40	-16.2
13	Bartolo Colon B. Colon	5.01	18	2004	ANA	12	.600	34	34	158	0	0	0	208.1	215	116	122	38	71	3	0	1	897	1	6.83	3.07	2.23	1.64	17.6	7.9	1.37	.282	5.27	112	4.96	112	9.29	-12.7
14	Randy Johnson R. Johnson	5.00	17	2006	NYY	11	.607	33	33	172	2	0	0	205.0	194	114	125	28	60	10	0	1	860	3	7.55	2.63	2.87	1.23	20.0	7.0	1.24	.281	5.49	110	4.26	94	8.52	5.8
15	Steve Trachsel S. Trachsel	4.97	15	2006	NYM	8	.652	30	30	79	1	0	0	164.2	185	91	94	23	78	4	0	1	736	4	4.32	4.26	1.01	1.26	10.7	10.6	1.60	.293	5.14	114	5.49	123	10.11	-18.8
16	Charles Nagy C. Nagy	4.95	17	1999	CLE	11	.607	33	32	126	1	0	0	202.0	238	111	120	26	59	6	0	4	887	3	5.61	2.63	2.14	1.16	14.2	6.7	1.47	.316	5.35	100	4.51	93	10.60	7.3
17	Ryan Dempster R. Dempster	4.94	15	2001	FLA	12	.556	34	34	171	2	1	0	211.1	218	116	123	21	112	10	0	5	954	5	7.28	4.77	1.53	0.89	17.9	11.7	1.56	.308	5.24	118	4.45	104	9.28	-4.7
18	Rodrigo Lopez R. Lopez	4.90	15	2005	BAL	12	.556	35	35	118	0	0	0	209.1	232	114	126	28	63	7	0	1	918	5	5.07	2.71	1.87	1.20	12.9	6.9	1.41	.291	5.42	114	4.62	104	9.97	-3.7
19	Kevin Tapani K. Tapani	4.85	19	1998	CHC	9	.679	35	34	136	2	2	0	219.0	244	118	120	30	62	5	0	4	945	7	5.59	2.55	2.19	1.23	14.4	6.6	1.40	.301	4.93	114	4.59	106	10.03	-5.8
20	David Wells D. Wells	4.82	17	1999	TOR	10	.630	34	34	169	7	1	0	231.2	246	124	132	32	62	6	0	2	987	1	6.57	2.41	2.73	1.24	17.1	6.3	1.33	.298	5.13	98	4.34	92	9.56	10.4
21	Joe Blanton J. Blanton	4.82	16	2006	OAK	12	.571	32	31	107	1	1	0	194.1	241	104	111	17	58	5	0	4	856	3	4.96	2.69	1.84	0.79	12.5	6.8	1.54	.335	5.14	108	4.15	92	11.16	7.9
22	Scott Elarton S. Elarton	4.81	17	2000	HOU	7	.708	30	30	131	2	0	0	192.2	198	103	117	29	84	6	0	1	855	8	6.12	3.92	1.56	1.35	15.3	9.8	1.46	.279	5.47	100	5.12	108	9.25	-7.7
23	Mike Mussina M. Mussina	4.81	19	1996	BAL	11	.633	36	36	204	4	1	0	243.1	264	130	137	31	69	3	0	0	1,039	3	7.55	2.55	2.96	1.15	19.6	6.6	1.37	.318	5.07	97	4.03	82	9.76	23.9
24	Scott Erickson S. Erickson	4.81	15	1999	BAL	12	.556	34	34	106	6	3	0	230.1	244	123	127	27	99	11	0	4	995	10	4.14	3.87	1.07	1.05	10.7	9.9	1.49	.289	4.96	102	5.16	108	9.53	-9.4
25	Andy Hawkins A. Hawkins	4.80	15	1989	NYY	15	.500	34	34	98	5	2	0	208.1	238	111	127	23	76	6	0	6	908	1	4.23	3.28	1.29	0.99	10.8	8.4	1.51	.305	5.49	125	4.43	116	10.28	-13.5