Livan Hernandez has the worst career ERA when winning 150+ games, with an ERA of 4.44.

Interpreted as:

worst career era by a player, minimum 150 wins

	NAME	ERA	W	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	Livan Hernandez L. Hernandez	4.44	178	177	.501	519	474	1,976	50	9	1	3189.0	3,525	1,572	1,686	362	1,066	78	17	86	13,816	41	5.58	3.01	1.85	1.02	14.3	7.7	1.44	.306	4.76	105	4.39	103	9.95	-45.4
2	Tim Wakefield T. Wakefield	4.41	200	180	.526	627	463	2,156	33	6	22	3226.1	3,152	1,582	1,791	418	1,205	186	78	33	13,939	134	6.01	3.36	1.79	1.17	15.5	8.6	1.35	.274	5.00	96	4.72	108	8.79	-137.5
3	Willis Hudlin W. Hudlin	4.41	158	156	.503	491	328	677	155	11	31	2613.1	3,011	1,281	1,493	118	846	44	105		11,522	41	2.33	2.91	0.80	0.41	5.9	7.3	1.48	.294	5.14	98	4.16	94	10.37	75.5
4	Rick Porcello R. Porcello	4.40	150	125	.545	355	351	1,561	10	3	0	2096.1	2,270	1,025	1,122	260	489	84	2	17	8,912	70	6.70	2.10	3.19	1.12	17.5	5.5	1.32	.308	4.82	102	4.06	97	9.75	26.3
5	Mike Moore M. Moore	4.39	161	176	.478	450	440	1,667	79	16	2	2831.2	2,858	1,381	1,516	291	1,156	55	6	61	12,203	135	5.30	3.67	1.44	0.92	13.7	9.5	1.42	.284	4.82	105	4.26	101	9.08	-13.9
6	Earl Whitehill E. Whitehill	4.36	218	185	.541	541	473	1,350	226	16	11	3564.2	3,917	1,726	2,018	192	1,431	101	46		15,781	43	3.41	3.61	0.94	0.48	8.6	9.1	1.50	.293	5.10	99	4.29	99	9.89	6
7	John Burkett J. Burkett	4.31	166	136	.550	445	423	1,766	21	6	1	2648.1	2,866	1,268	1,374	257	700	90	8	59	11,324	33	6.00	2.38	2.52	0.87	15.6	6.2	1.35	.307	4.67	102	3.84	91	9.74	117.1
8	Kenny Rogers K. Rogers	4.27	219	156	.584	762	474	1,968	36	9	28	3302.2	3,457	1,568	1,739	339	1,175	127	133	53	14,280	79	5.36	3.20	1.67	0.92	13.8	8.2	1.40	.292	4.74	93	4.38	97	9.42	43.3
9	Jamie Moyer J. Moyer	4.25	269	209	.563	696	638	2,441	33	10	0	4074.0	4,231	1,926	2,076	522	1,155	146	15	69	17,356	57	5.39	2.55	2.11	1.15	14.1	6.7	1.32	.283	4.59	97	4.46	102	9.35	-33.5
10	Bump Hadley B. Hadley	4.24	161	165	.494	528	355	1,318	134	14	25	2945.2	2,980	1,389	1,609	167	1,442	63	108		13,016	72	4.03	4.41	0.91	0.51	10.1	11.1	1.50	.281	4.92	96	4.42	102	9.10	-27.9
11	Javier Vazquez J. Vazquez	4.22	165	160	.508	450	443	2,536	28	8	0	2840.0	2,784	1,331	1,431	373	763	88	5	58	11,935	76	8.04	2.42	3.32	1.18	21.2	6.4	1.25	.295	4.53	96	3.90	88	8.82	164.4
12	Rube Walberg R. Walberg	4.16	155	141	.524	544	306	1,085	139	15	34	2644.0	2,795	1,223	1,423	163	1,031	27	146		11,531	40	3.69	3.51	1.05	0.55	9.4	8.9	1.45	.285	4.84	94	4.25	98	9.51	34
13	Freddy Garcia F. Garcia	4.15	156	108	.591	376	357	1,621	12	4	0	2264.0	2,243	1,045	1,101	285	708	67	13	42	9,595	95	6.44	2.81	2.29	1.13	16.9	7.4	1.30	.283	4.38	94	4.29	96	8.92	43.9
14	David Wells D. Wells	4.13	239	157	.604	660	489	2,201	54	12	13	3439.0	3,635	1,578	1,702	407	719	83	65	65	14,413	101	5.76	1.88	3.06	1.07	15.3	5.0	1.27	.293	4.45	93	3.99	90	9.51	172.9
15	Bartolo Colon B. Colon	4.12	247	188	.568	565	552	2,535	38	13	0	3461.2	3,593	1,584	1,719	439	948	64	2	47	14,655	45	6.59	2.46	2.67	1.14	17.3	6.5	1.31	.296	4.47	95	4.14	96	9.34	71.6
16	Alvin Crowder A. Crowder	4.12	167	115	.592	402	292	799	150	16	22	2344.1	2,453	1,072	1,204	137	800	16	71		10,070	20	3.07	3.07	1.00	0.53	7.9	7.9	1.39	.278	4.62	95	4.20	98	9.42	23.8
17	Kevin Millwood K. Millwood	4.11	169	152	.526	451	443	2,083	22	6	0	2720.1	2,770	1,243	1,357	296	843	74	3	46	11,616	67	6.89	2.79	2.47	0.98	17.9	7.3	1.33	.297	4.49	94	3.98	91	9.16	123.8
18	Ervin Santana E. Santana	4.11	151	129	.539	425	386	1,978	21	11	0	2486.2	2,391	1,135	1,221	331	776	104	20	35	10,482	104	7.16	2.81	2.55	1.20	18.9	7.4	1.27	.282	4.42	99	4.31	104	8.65	-44.1
19	Rick Sutcliffe R. Sutcliffe	4.08	171	139	.552	457	392	1,679	72	18	6	2697.2	2,662	1,223	1,324	236	1,081	46	30	75	11,548	100	5.60	3.61	1.55	0.79	14.5	9.4	1.39	.285	4.42	104	3.92	100	8.88	3.6
20	Jouett Meekin J. Meekin	4.07	152	133	.533	324	308	901	270	9	2	2605.1	2,837	1,177	1,706	67	1,056	89	16		11,543	121	3.11	3.65	0.85	0.23	7.8	9.1	1.49	.294	5.89	99	4.11	99	9.80	7.1
21	Barry Zito B. Zito	4.04	165	143	.536	433	421	1,885	12	5	0	2576.2	2,381	1,157	1,254	282	1,064	97	9	52	11,001	50	6.58	3.72	1.77	0.98	17.1	9.7	1.34	.274	4.38	97	4.38	104	8.32	-43.1
22	Wes Ferrell W. Ferrell	4.04	193	128	.601	374	323	985	227	17	13	2623.0	2,845	1,177	1,382	132	1,040	23	43		11,568	35	3.38	3.57	0.95	0.45	8.5	9.0	1.48	.289	4.74	87	4.23	93	9.76	97.5
23	Jim Slaton J. Slaton	4.03	151	158	.489	496	360	1,191	86	22	14	2683.2	2,773	1,202	1,335	277	1,004	48	71	65	11,535	97	3.99	3.37	1.19	0.93	10.3	8.7	1.41	.277	4.48	106	4.26	111	9.30	-132.4
24	Ted Breitenstein T. Breitenstein	4.03	160	170	.485	380	342	893	301	12	3	2973.1	3,101	1,331	1,848	79	1,207	87	34		13,010	42	2.70	3.65	0.74	0.24	6.9	9.3	1.45	.281	5.59	93	4.26	98	9.39	41.8
25	Derek Lowe D. Lowe	4.03	176	157	.529	681	377	1,722	10	4	86	2671.1	2,759	1,195	1,333	217	794	78	168	67	11,358	55	5.80	2.68	2.17	0.73	15.2	7.0	1.33	.297	4.49	93	3.82	89	9.30	139.2