most wins in a season by a pitcher with a w% of 1.000

Old Hoss Radbourn has the most wins with a win percentage of .010 or better in a season, with 59 wins in 1884.

Interpreted as:

most wins in a season by a pitcher with a w% of 1.000 or higher

	NAME	W	W%	SEASON	TM	L	G	GS	ERA	SO	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	GF	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Old Hoss Radbourn O. Hoss Radbourn	59	.831	1884	PRO	12	75	73	1.38	441	73	11	2	678.2	528	104	216	18	98		2	2,672	34	5.85	1.30	4.50	0.24	16.5	3.7	0.92		2.86	48	2.75	84	7.00	31.9
2	John Clarkson J. Clarkson	53	.768	1885	CWS	16	70	70	1.85	308	68	10	0	623.0	497	128	255	21	97		0	2,487	14	4.45	1.40	3.18	0.30	12.4	3.9	0.95		3.68	61	2.80	86	7.18	38.8
3	Guy Hecker G. Hecker	52	.722	1884	LOU	20	75	73	1.80	385	72	6	0	670.2	526	134	230	4	56	16	2	2,649	27	5.17	0.75	6.88	0.05	14.5	2.1	0.87	.239	3.09	57	2.53	80	7.06	43
4	John Clarkson J. Clarkson	49	.721	1889	BSN	19	73	72	2.73	284	68	8	1	620.0	589	188	280	16	203	17	1	2,641	16	4.12	2.95	1.40	0.23	10.8	7.7	1.28	.270	4.06	65	3.49	82	8.55	56.6
5	Charlie Buffinton C. Buffinton	48	.750	1884	BSN	16	67	67	2.15	417	63	8	0	587.0	506	140	225	15	76		0	2,383	24	6.39	1.17	5.49	0.23	17.5	3.2	0.99		3.45	74	2.57	77	7.76	46.8
6	Old Hoss Radbourn O. Hoss Radbourn	48	.658	1883	PRO	25	76	68	2.05	315	66	4	1	632.1	563	144	275	7	56		8	2,540	36	4.48	0.80	5.63	0.10	12.4	2.2	0.98		3.91	68	2.67	88	8.01	17.8
7	John Ward J. Ward	47	.712	1879	PRO	19	70	60	2.15	239	58	2	1	587.0	571	140	270	5	36		10	2,425	29	3.66	0.55	6.64	0.08	9.9	1.5	1.03		4.14	89	2.22	92	8.75	7.9
8	Al Spalding A. Spalding	47	.797	1876	CWS	12	61	60	1.75	39	53	8	0	528.2	542	103	226	6	26		2	2,219	1	0.66	0.44	1.50	0.10	1.8	1.2	1.07		3.85	73	2.38	99	9.23	9
9	Matt Kilroy M. Kilroy	46	.708	1887	BAL	19	69	69	3.07	217	66	6	0	589.1	585	201	326	9	157	20	1	2,492	46	3.31	2.40	1.38	0.14	8.7	6.3	1.26	.276	4.98	73	3.64	90	8.93	23.3
10	Pud Galvin P. Galvin	46	.676	1884	BUF	22	72	72	1.99	369	71	12	0	636.1	566	141	254	23	63		0	2,554	16	5.22	0.89	5.86	0.33	14.4	2.5	0.99		3.59	64	2.88	82	8.01	50.9
11	Pud Galvin P. Galvin	46	.613	1883	BUF	29	76	75	2.72	279	72	5	0	656.1	676	198	367	9	50		1	2,741	28	3.83	0.69	5.58	0.12	10.2	1.8	1.11		5.03	85	2.81	88	9.27	32
12	Silver King S. King	45	.692	1888	STL	20	66	64	1.63	258	64	6	0	584.2	435	106	203	6	76	30	1	2,291	23	3.97	1.17	3.39	0.09	11.3	3.3	0.87	.223	3.12	50	2.38	76	6.70	55
13	Jim McCormick J. McCormick	45	.616	1880	CLE	28	74	74	1.85	260	72	7	0	657.2	585	135	274	2	75		0	2,669	21	3.56	1.03	3.47	0.03	9.7	2.8	1.00		3.75	81	2.12	93	8.01	4.6
14	George Bradley G. Bradley	45	.703	1876	STL	19	64	64	1.23	103	63	16	0	573.0	470	78	229	3	38		0	2,269	34	1.62	0.60	2.71	0.05	4.5	1.7	0.89		3.60	58	2.14	101	7.38	-20.7
15	William Hutchinson W. Hutchinson	44	.698	1891	CHI	19	66	58	2.81	261	56	4	1	561.0	508	175	283	26	178	7	8	2,371	25	4.19	2.86	1.47	0.42	11.0	7.5	1.22	.254	4.54	82	3.19	90	8.15	24
16	Mickey Welch M. Welch	44	.800	1885	NYG	11	56	55	1.66	258	55	7	1	492.0	372	91	170	4	131		1	1,963	39	4.72	2.40	1.97	0.07	13.1	6.7	1.02		3.11	60	2.74	91	6.80	13
17	Billy Taylor B. Taylor	43	.729	1884	TOT	16	63	59	2.10	284	59	3	4	523.0	454	122	215	5	84	12	4	2,195	32	4.89	1.45	3.38	0.09	12.9	3.8	1.03	.248	3.70	66	2.86	98	7.81	5.1
18	Will White W. White	43	.662	1883	CIN	22	65	65	2.09	141	64	6	0	577.0	473	134	255	16	104		0	2,367	25	2.20	1.62	1.36	0.25	6.0	4.4	1.00		3.98	63	3.66	111	7.38	-23.9
19	Larry Corcoran L. Corcoran	43	.754	1880	CWS	14	63	60	1.95	268	57	4	2	536.1	404	116	218	6	99		3	2,133	19	4.50	1.66	2.71	0.10	12.6	4.6	0.94		3.66	80	2.23	91	6.78	16.5
20	Tommy Bond T. Bond	43	.694	1879	BOS	19	64	64	1.96	155	59	11	0	555.1	543	121	206	8	24		1	2,189	13	2.51	0.39	6.46	0.13	7.1	1.1	1.02		3.34	79	2.50	101	8.80	-3.4
21	Will White W. White	43	.581	1879	CIN	31	76	75	1.99	232	75	4	0	680.0	676	150	404	10	68		1	2,906	49	3.07	0.90	3.41	0.13	8.0	2.3	1.09		5.35	84	2.55	107	8.95	-25.2
22	Lady Baldwin L. Baldwin	42	.764	1886	DET	13	56	56	2.24	323	55	7	0	487.0	371	121	194	11	100		0	1,936	22	5.97	1.85	3.23	0.20	16.7	5.2	0.97		3.59	68	2.68	81	6.86	33.8
23	Tim Keefe T. Keefe	42	.677	1886	NYG	20	64	64	2.56	297	62	2	0	535.0	479	152	250	9	102		0	2,173	40	5.00	1.72	2.91	0.15	13.7	4.7	1.09		4.21	80	2.78	87	8.06	22
24	Jack Chesbro J. Chesbro	41	.774	1904	NYH	12	55	51	1.82	239	48	6	0	454.2	338	92	128	4	88	7	3	1,720	9	4.73	1.74	2.72	0.08	13.9	5.1	0.94	.242	2.53	65	2.11	78	6.69	32.5
25	William Hutchinson W. Hutchinson	41	.621	1890	CHN	25	71	66	2.70	289	65	5	2	603.0	505	181	315	20	199	13	5	2,506	27	4.31	2.97	1.45	0.30	11.5	7.9	1.17	.244	4.70	71	3.44	84	7.54	50.1