worst era by a player with a win% of.550 in a season with 150 ip since 1920

Since 1920, Wes Ferrell has the highest ERA with 150.0+ innings pitched with a win percentage of .550 or better in a season, with an ERA of 6.28 in 1938.

Interpreted as:

worst era by a player with a win% of.550 or higher in a season with 150 or more ip since 1920

	NAME	ERA	W%	IP	SEASON	TM	W	L	G	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	Wes Ferrell W. Ferrell	6.28	.600	179.0	1938	TOT	15	10	28	26	43	10	0	0	245	125	144	18	86	1	2		848	5	2.16	4.32	0.50	0.91	5.1	10.1	1.85	.324	7.24	138	5.21	119	12.32	-18.1
2	Guy Bush G. Bush	6.20	.600	225.0	1930	CHC	15	10	46	25	75	11	0	3	291	155	174	22	86	2	8		1,031	12	3.00	3.44	0.87	0.88	7.3	8.3	1.68	.318	6.96	126	5.28	108	11.64	-10.5
3	Mark Hendrickson M. Hendrickson	5.90	.579	178.1	2005	TBD	11	8	31	31	89	1	0	0	227	117	126	24	49	2	0	1	796	4	4.49	2.47	1.82	1.21	11.2	6.2	1.55	.321	6.36	138	4.62	107	11.46	-5.9
4	Shawn Estes S. Estes	5.84	.652	202.0	2004	COL	15	8	34	34	117	1	0	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
5	J.A. Happ	5.79	.556	152.1	2021	TOT	10	8	30	30	122	0	0	0	177	98	100	30	48	3	0	0	671	4	7.21	2.84	2.54	1.77	18.2	7.2	1.48	.314	5.91	137	5.13	122	10.46	-15.8
6	Phil Collins P. Collins	5.75	.563	153.1	1929	PHN	9	7	43	11	61	3	0	5	172	98	106	18	83	4	20		706	0	3.58	4.87	0.73	1.06	8.6	11.8	1.66	.285	6.22	113	5.59	114	10.10	-9.5
7	Chan Ho Park C. Ho Park	5.74	.600	155.1	2005	TOT	12	8	30	29	113	0	0	0	180	99	103	11	80	10	0	1	715	6	6.55	4.64	1.41	0.64	15.8	11.2	1.67	.337	5.97	132	4.21	98	10.43	1.5
8	Jesse Haines J. Haines	5.71	.565	179.2	1929	SLN	13	10	28	25	59	12	0	0	230	114	123	21	73	2	1		822	2	2.96	3.66	0.81	1.05	7.2	8.9	1.69	.313	6.16	120	5.28	114	11.52	-13.1
9	Esteban Loaiza E. Loaiza	5.70	.588	183.0	2004	TOT	10	7	31	27	117	2	1	0	217	116	124	32	71	3	1	5	818	4	5.75	3.49	1.65	1.57	14.3	8.7	1.57	.311	6.10	123	5.25	112	10.67	-11.1
10	Kelvim Escobar K. Escobar	5.69	.560	174.0	1999	TOR	14	11	33	30	129	1	0	0	203	110	118	19	81	10	2	2	795	6	6.67	4.19	1.59	0.98	16.2	10.2	1.63	.331	6.10	116	4.63	98	10.50	2.2
11	Tom Gordon T. Gordon	5.59	.571	215.2	1996	BOS	12	9	34	34	171	4	1	0	249	134	143	28	105	4	0	5	998	6	7.14	4.38	1.63	1.17	17.1	10.5	1.64	.320	5.97	110	4.78	98	10.39	1.9
12	Drew Hutchison D. Hutchison	5.57	.722	150.1	2015	TOR	13	5	30	28	129	1	1	0	179	93	103	22	44	11	0	0	664	7	7.72	2.63	2.93	1.32	19.4	6.6	1.48	.343	6.17	138	4.41	108	10.72	-5.5
13	Jose Contreras J. Contreras	5.50	.591	170.1	2004	TOT	13	9	31	31	150	0	0	0	166	104	114	31	84	8	0	1	758	17	7.93	4.44	1.79	1.64	19.8	11.1	1.47	.278	6.02	119	5.27	115	8.77	-12.8
14	Josh Fogg J. Fogg	5.49	.550	172.0	2006	COL	11	9	31	31	93	1	1	0	206	105	115	24	60	6	0	13	765	3	4.87	3.14	1.55	1.26	12.2	7.8	1.55	.313	6.02	112	5.02	107	10.78	-5.6
15	Jamie Moyer J. Moyer	5.49	.565	154.0	2000	SEA	13	10	26	26	98	0	0	0	173	94	103	22	53	3	0	2	678	4	5.73	3.10	1.85	1.29	14.5	7.8	1.47	.301	6.02	117	4.80	102	10.11	-1.4
16	Kyle Kendrick K. Kendrick	5.49	.550	155.2	2008	PHI	11	9	31	30	68	0	0	0	194	95	103	23	57	14	1	2	722	4	3.93	3.30	1.19	1.33	9.4	7.9	1.61	.305	5.96	127	5.54	127	11.22	-20.2
17	Bobby Witt B. Witt	5.48	.550	157.2	1986	TEX	11	9	31	31	174	0	0	0	130	96	104	18	143	3	0	2	741	22	9.93	8.16	1.22	1.03	23.5	19.3	1.73	.278	5.94	129	4.82	116	7.42	-11.6
18	Shane Reynolds S. Reynolds	5.43	.550	167.1	2003	ATL	11	9	30	29	94	0	0	0	191	101	104	20	59	8	0	6	731	0	5.06	3.17	1.59	1.08	12.9	8.1	1.49	.311	5.59	127	4.66	109	10.27	-6.9
19	Cliff Lee C. Lee	5.43	.636	179.0	2004	CLE	14	8	33	33	161	0	0	0	188	108	113	30	81	11	0	1	802	6	8.09	4.07	1.99	1.51	20.1	10.1	1.50	.304	5.68	121	4.96	113	9.45	-12.1
20	Kirk Rueter K. Rueter	5.41	.600	184.2	1999	SFG	15	10	33	33	94	1	0	0	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
21	Bobby Witt B. Witt	5.41	.571	199.2	1996	TEX	16	12	33	32	157	2	0	0	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
22	Bill Gullickson B. Gullickson	5.37	.591	159.1	1993	DET	13	9	28	28	70	2	0	0	186	95	106	28	44	3	0	3	699	2	3.95	2.49	1.59	1.58	10.0	6.3	1.44	.285	5.99	122	5.27	119	10.51	-14
23	Sterling Hitchcock S. Hitchcock	5.35	.591	196.2	1996	SEA	13	9	35	35	132	0	0	0	245	117	131	27	73	7	0	4	885	4	6.04	3.34	1.81	1.24	14.9	8.2	1.62	.337	5.99	107	4.83	97	11.21	3
24	James Baldwin J. Baldwin	5.32	.684	159.0	1998	CWS	13	6	37	24	108	1	0	0	176	94	103	18	60	10	3	2	712	5	6.11	3.40	1.80	1.02	15.2	8.4	1.48	.306	5.83	117	4.57	100	9.96	0
25	Bump Hadley B. Hadley	5.30	.579	178.1	1937	NYY	11	8	29	25	70	6	0	0	199	105	122	16	83	3	3		803	5	3.53	4.19	0.84	0.81	8.7	10.3	1.58	.290	6.16	121	4.87	113	10.04	-12.4