most wins with only 1 loss in a season by a pitcher in history

Roy Face has the most wins with 1 or fewer pitcher loss in a season, with 18 wins in 1959.

	NAME	W	L	SEASON	TM	W%	L%	G	GS	ERA	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	Roy Face R. Face	18	1	1959	PIT	.947	.053	57	0	2.70	69	0	0	10	93.1	91	28	29	5	25	1	47	8	380	4	6.65	2.41	2.76	0.48	18.2	6.6	1.24	.307	2.80	70	2.60	69	8.78	12.5
2	Tony Gonsolin T. Gonsolin	16	1	2022	LAD	.941	.059	24	24	2.14	119	0	0	0	130.1	79	31	32	11	35	4	0	1	498	5	8.22	2.42	3.40	0.76	23.9	7.0	0.87	.207	2.21	55	3.27	81	5.46	10.8
3	Johnny Allen J. Allen	15	1	1937	CLE	.938	.063	24	20	2.55	87	14	0	0	173.0	157	49	55	4	60	5	4		713	2	4.53	3.12	1.45	0.21	12.2	8.4	1.25	.275	2.86	56	3.46	77	8.17	19.8
4	Phil Regan P. Regan	14	1	1966	LAD	.933	.067	65	0	1.62	88	0	0	21	116.2	85	21	24	6	24	0	48	9	445	4	6.79	1.85	3.67	0.46	19.8	5.4	0.93	.242	1.85	49	2.33	73	6.56	11.4
5	Clay Buchholz C. Buchholz	12	1	2013	BOS	.923	.077	16	16	1.74	96	1	1	0	108.1	75	21	23	4	36	1	0	0	416	1	7.98	2.99	2.67	0.33	23.1	8.7	1.02	.254	1.91	42	2.78	71	6.23	13.5
6	Jim Nash J. Nash	12	1	1966	KCA	.923	.077	18	17	2.06	98	5	0	1	127.0	95	29	32	6	47	0	1	3	516	4	6.94	3.33	2.09	0.43	19.0	9.1	1.12	.244	2.27	59	2.74	75	6.73	12.4
7	Tom Zachary T. Zachary	12	0	1929	NYY	1.000	.000	26	11	2.48	35	7	2	2	119.2	131	33	43	5	30	2	9		512	1	2.63	2.26	1.17	0.38	6.8	5.9	1.35	.286	3.23	62	3.92	94	9.85	2.9
8	Perry Werden P. Werden	12	1	1884	SLU	.923	.077	16	16	1.97	51	12	1	0	141.1	113	31	61	1	22		0		575	5	3.25	1.40	2.32	0.06	8.9	3.8	0.96		3.88	67	3.11	121	7.20	-10
9	John Gant J. Gant	11	1	2019	STL	.917	.083	64	0	3.66	60	0	0	3	66.1	51	27	29	4	34	0	13	1	269	1	8.14	4.61	1.76	0.54	22.3	12.6	1.28	.275	3.93	88	3.72	87	6.92	4.3
10	Terry Leach T. Leach	11	1	1987	NYM	.917	.083	44	12	3.22	61	1	1	0	131.1	132	47	54	14	29	1	7	5	542	0	4.18	1.99	2.10	0.96	11.3	5.4	1.23	.270	3.70	83	4.00	101	9.05	-0.9
11	Dennis Lamp D. Lamp	11	0	1985	TOR	1.000	.000	53	1	3.32	68	0	0	2	105.2	96	39	42	7	27	0	11	3	426	5	5.79	2.30	2.52	0.60	16.0	6.3	1.16	.275	3.58	79	3.02	74	8.18	12.5
12	Steve Sundra S. Sundra	11	1	1939	NYY	.917	.083	24	11	2.76	27	8	1	0	120.2	110	37	43	7	56	0	8		521	3	2.01	4.18	0.48	0.52	5.2	10.7	1.38	.239	3.21	62	4.67	109	8.20	-5.9
13	Larry Twitchell L. Twitchell	11	1	1887	DET	.917	.083	15	12	4.33	24	11	0	1	112.1	120	54	74	3	36	10	3		494	6	1.92	2.88	0.67	0.24	4.9	7.3	1.39	.278	5.93	107	4.43	105	9.61	-2.4
14	Mike Baumann M. Baumann	10	1	2023	BAL	.909	.091	60	0	3.76	61	0	0	0	64.2	52	27	29	7	33	2	15	2	273	7	8.49	4.59	1.85	0.97	22.3	12.1	1.31	.265	4.04	90	4.40	105	7.24	-1.5
15	Brandon Workman B. Workman	10	1	2019	BOS	.909	.091	73	0	1.88	104	0	0	16	71.2	29	15	18	1	45	2	30	4	286	4	13.06	5.65	2.31	0.13	36.4	15.7	1.03	.209	2.26	39	2.45	54	3.64	16.6
16	Andrew Miller A. Miller	10	1	2016	TOT	.909	.091	70	0	1.45	123	0	0	12	74.1	42	12	13	8	9	2	23	0	275	1	14.89	1.09	13.67	0.97	44.7	3.3	0.69	.256	1.57	34	1.67	38	5.09	21.7
17	Kris Medlen K. Medlen	10	1	2012	ATL	.909	.091	50	12	1.57	120	2	1	1	138.0	103	24	26	6	23	0	7	0	520	3	7.83	1.50	5.22	0.39	23.1	4.4	0.91	.261	1.70	40	2.41	63	6.72	22
18	Alfredo Aceves A. Aceves	10	1	2009	NYY	.909	.091	43	1	3.54	69	0	0	1	84.0	69	33	36	10	16	5	10	2	337	0	7.39	1.71	4.31	1.07	20.5	4.7	1.01	.249	3.86	77	3.74	82	7.39	7.7
19	Aaron Small A. Small	10	0	2005	NYY	1.000	.000	15	9	3.20	37	1	1	0	76.0	71	27	27	4	24	5	1	0	316	0	4.38	2.84	1.54	0.47	11.7	7.6	1.25	.272	3.20	74	3.86	89	8.41	3.8
20	Mike Remlinger M. Remlinger	10	1	1999	ATL	.909	.091	73	0	2.37	81	0	0	1	83.2	66	22	24	9	35	1	14	5	346	5	8.71	3.76	2.31	0.97	23.4	10.1	1.21	.259	2.58	52	3.88	85	7.10	6.5
21	Aurelio Lopez A. Lopez	10	1	1984	DET	.909	.091	71	0	2.94	94	0	0	14	137.2	109	45	51	16	52	2	41	6	559	3	6.15	3.40	1.81	1.05	16.8	9.3	1.17	.235	3.33	75	4.08	100	7.13	0.3
22	Kent Tekulve K. Tekulve	10	1	1977	PIT	.909	.091	72	0	3.06	59	0	0	7	103.0	89	35	41	5	33	1	35	6	422	2	5.16	2.88	1.79	0.44	14.0	7.8	1.18	.259	3.58	77	3.20	81	7.78	8.5
23	Tom Hall T. Hall	10	1	1972	CIN	.909	.091	47	7	2.61	134	1	1	8	124.1	77	36	43	13	56	2	20	1	509	1	9.70	4.05	2.39	0.94	26.3	11.0	1.07	.211	3.11	79	3.00	94	5.57	2.5
24	Stan Williams S. Williams	10	1	1970	MIN	.909	.091	68	0	1.99	76	0	0	15	113.1	85	25	34	8	32	5	36	6	455	2	6.04	2.54	2.38	0.64	16.7	7.0	1.03	.231	2.70	52	3.19	79	6.75	10.6
25	Howie Krist H. Krist	10	0	1941	SLN	1.000	.000	37	8	4.03	36	2	0	2	114.0	107	51	57	10	35	1	17		476	1	2.84	2.76	1.03	0.79	7.6	7.4	1.25	.246	4.50	108	4.12	107	8.45	-3.2