worst single season era by a pitcher with a winning record

Vin Mazzaro has the highest ERA with more than 0-0 records in a season, with an ERA of 54.00 in 2016.

	NAME	ERA	W	REC	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	Vin Mazzaro V. Mazzaro	54.00	1	1-0	2016	SFG	0	1.000	2	0	0	0	0	0	1.0	7	6	9	0	1	1	0	0	13	0	0.00	9.00	0.00	0.00	0.0	7.7	8.00	.636	81.00	1338	9.14	233	63.00	-0.6
2	Trevor Gott T. Gott	30.00	1	1-0	2017	WSH	0	1.000	4	0	3	0	0	0	3.0	11	10	10	1	3	0	1	1	23	1	9.00	9.00	1.00	3.00	13.0	13.0	4.67	.625	30.00	678	8.48	193	33.00	-1.3
3	Mike Mayers M. Mayers	27.00	1	1-1	2016	STL	1	.500	4	1	2	0	0	0	5.1	16	16	16	3	3	1	0	0	35	0	3.38	5.06	0.67	5.06	5.7	8.6	3.56	.500	27.00	662	11.95	293	27.00	-4.7
4	Bartolome Fortunato B. Fortunato	27.00	1	1-0	2006	NYM	0	1.000	2	0	0	0	0	0	3.0	7	9	9	2	2	1	0	0	18	0	0.00	6.00	0.00	6.00	0.0	11.1	3.00	.385	27.00	620	14.81	331	21.00	-3.5
5	Gerald Alexander G. Alexander	27.00	1	1-0	1992	TEX	0	1.000	3	0	1	0	0	0	1.2	5	5	5	1	1	0	1	0	12	0	5.40	5.40	1.00	5.40	8.3	8.3	3.60	.444	27.00	692	11.18	287	27.00	-1.4
6	Ricardo Jordan R. Jordan	24.30	1	1-0	1998	CIN	0	1.000	6	0	1	0	0	0	3.1	4	9	9	2	7	0	0	0	21	0	2.70	18.90	0.14	5.40	4.8	33.3	3.30	.182	24.30	563	16.63	379	10.80	-4.4
7	Max Macon M. Macon	22.50	1	1-0	1940	BKN	0	1.000	2	0	1	0	0	0	2.0	5	5	5	2	0	0	1		11	0	4.50	0.00		9.00	9.1	0.0	2.50	.375	22.50	579	14.84	373	22.50	-2.4
8	Tom Gorzelanny T. Gorzelanny	21.00	1	1-0	2016	CLE	0	1.000	7	0	4	0	0	0	3.0	4	7	7	1	5	0	1	1	18	0	12.00	15.00	0.80	3.00	22.2	27.8	3.00	.375	21.00	481	9.80	229	12.00	-1.8
9	Dave Elder D. Elder	19.29	1	1-1	2003	CLE	1	.500	4	0	3	0	0	0	2.1	5	5	5	2	4	0	1	0	16	1	11.57	15.43	0.75	7.71	18.8	25.0	3.86	.429	19.29	435	16.74	383	19.29	-3.3
10	Bryan Shaw B. Shaw	18.00	1	1-0	2020	SEA	0	1.000	6	0	4	0	0	0	6.0	13	12	12	1	6	1	1	0	38	0	6.00	9.00	0.67	1.50	10.5	15.8	3.17	.462	18.00	428	7.52	174	19.50	-2.2
11	Fernando Hernandez F. Hernandez	18.00	1	1-0	2008	OAK	0	1.000	3	0	2	0	0	0	3.0	4	6	6	0	5	1	1	0	19	0	6.00	15.00	0.40	0.00	10.5	26.3	3.00	.364	18.00	427	7.79	184	12.00	-1.2
12	Mark Watson M. Watson	18.00	1	1-0	2002	SEA	0	1.000	3	0	1	0	0	0	4.0	8	8	8	1	4	0	1	0	24	1	2.25	9.00	0.25	2.25	4.2	16.7	3.00	.389	18.00	430	8.70	204	18.00	-2
13	Jose Pena J. Pena	18.00	1	1-1	1969	CIN	1	.500	6	0	3	0	0	0	5.0	10	10	10	0	5	0	3	1	30	3	5.40	9.00	0.60	0.00	10.0	16.7	3.00	.455	18.00	468	4.30	117	18.00	-0.3
14	Parker Bridwell P. Bridwell	17.55	1	1-0	2018	LAA	0	1.000	5	1	3	0	0	0	6.2	14	13	13	5	2	0	2	0	36	0	4.05	2.70	1.50	6.75	8.3	5.6	2.40	.346	17.55	416	12.91	302	18.90	-6.3
15	Duaner Sanchez D. Sanchez	16.50	1	1-0	2003	PIT	0	1.000	6	0	3	0	0	0	6.0	15	11	11	2	1	2	2	0	34	0	4.50	1.50	3.00	3.00	8.8	2.9	2.67	.500	16.50	386	7.86	183	22.50	-2.4
16	Shawn Hill S. Hill	16.00	1	1-2	2004	MON	2	.333	3	3	10	0	0	0	9.0	17	16	16	1	7	1	0	0	51	0	10.00	7.00	1.43	1.00	19.6	13.7	2.67	.500	16.00	361	4.93	110	17.00	-0.4
17	Oliver Perez O. Perez	15.75	1	1-1	2022	ARI	1	.500	7	0	1	0	0	0	4.0	8	7	9	1	1	1	1	0	24	0	2.25	2.25	1.00	2.25	4.2	4.2	2.25	.350	20.25	389	7.36	190	18.00	-1.6
18	John Lannan J. Lannan	15.75	1	1-0	2014	NYM	0	1.000	5	0	2	0	0	0	4.0	7	7	7	3	2	0	3	0	21	1	4.50	4.50	1.00	6.75	9.5	9.5	2.25	.286	15.75	453	13.38	363	15.75	-4.3
19	Jaret Wright J. Wright	15.71	2	2-3	2002	CLE	3	.400	8	6	12	0	0	0	18.1	40	32	34	3	19	2	1	0	116	1	5.89	9.33	0.63	1.47	10.3	16.4	3.22	.463	16.69	356	7.21	167	19.64	-6
20	Brady Raggio B. Raggio	15.43	1	1-1	1998	STL	1	.500	4	1	3	0	0	0	7.0	22	12	12	1	3	1	2	0	43	0	3.86	3.86	1.00	1.29	7.0	7.0	3.57	.600	15.43	368	5.85	133	28.29	-1.1
21	Carl Holling C. Holling	15.43	1	1-1	1922	DET	1	.500	5	1	2	0	0	0	9.1	21	16	16	1	5	2	1		50	0	1.93	4.82	0.40	0.96	4.0	10.0	2.79	.500	15.43	383	6.22	152	20.25	-2.2
22	Dave Wright D. Wright	15.43	1	1-0	1897	CHI	0	1.000	1	1	4	1	0	0	7.0	17	12	14	1	2	2	0		41	1	5.14	2.57	2.00	1.29	9.8	4.9	2.71	.500	18.00	355	5.75	132	21.86	-1.1
23	Carlos Zambrano C. Zambrano	15.26	1	1-2	2001	CHC	2	.333	6	1	4	0	0	0	7.2	11	13	13	2	8	1	1	0	42	1	4.70	9.39	0.50	2.35	9.5	19.0	2.48	.333	15.26	357	8.91	203	12.91	-3.8
24	Ben Shields B. Shields	15.19	1	1-0	1931	PHN	0	1.000	4	0	0	0	0	0	5.1	9	9	9	1	7	0	1		32	0	0.00	11.81	0.00	1.69	0.0	21.9	3.00	.333	15.19	351	9.49	212	15.19	-2.6
25	Adam Loewen A. Loewen	15.00	1	1-0	2016	ARI	0	1.000	8	0	3	0	0	0	6.0	7	10	10	1	6	1	3	0	31	1	4.50	9.00	0.50	1.50	9.7	19.4	2.17	.300	15.00	343	7.80	187	10.50	-2.4