pitchers most w in a single season since 1893, included postseason

Since 1893, Jack Chesbro has won the most games in a combined regular-season and postseason, with 41 wins in 1904.

	NAME	W	SEASON	TM	L	W%	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	Jack Chesbro J. Chesbro	41	1904	NYH	12	.774	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
2	Ed Walsh E. Walsh	40	1908	CWS	15	.727	66	49	1.42	269	42	11	6	464.0	343	73	111	2	56	9	16		1,755	10	5.22	1.09	4.80	0.04	15.3	3.2	0.86	.240	2.15	63	1.42	67	6.65	34.2
3	Joe Wood J. Wood	37	1912	BSA	6	.860	47	41	2.02	279	37	10	1	366.0	294	82	115	2	85	13	6		1,421	7	6.86	2.09	3.28	0.05	19.6	6.0	1.04	.280	2.83	55	2.11	67	7.23	35.1
4	Christy Mathewson C. Mathewson	37	1908	NYG	11	.771	56	44	1.43	259	34	11	5	390.2	281	62	85	5	42	3	9		1,469	2	5.97	0.97	6.17	0.12	17.6	2.9	0.83	.238	1.96	61	1.29	52	6.47	52.4
5	Walter Johnson W. Johnson	36	1913	WSH	7	.837	48	36	1.14	243	29	11	2	346.0	232	44	56	9	38	9	10		1,271	2	6.32	0.99	6.39	0.23	19.1	3.0	0.78	.229	1.46	39	1.90	63	6.03	42.3
6	Amos Rusie A. Rusie	36	1894	NYG	13	.735	54	50	2.78	195	45	3	1	444.0	426	137	228	10	200	5	4		1,910	10	3.95	4.05	0.98	0.20	10.2	10.5	1.41	.277	4.62	53	4.61	88	8.64	28.2
7	Frank Killen F. Killen	36	1893	PIT	14	.720	55	48	3.64	99	38	2	0	415.0	401	168	235	12	140	15	6		1,784	10	2.15	3.04	0.71	0.26	5.5	7.8	1.30	.256	5.10	80	4.26	93	8.70	12.4
8	Joe McGinnity J. McGinnity	35	1904	NYG	8	.814	51	44	1.61	144	38	9	5	408.0	307	73	103	8	86	13	7		1,588	2	3.18	1.90	1.67	0.18	9.1	5.4	0.96	.224	2.27	59	2.70	96	6.77	5.3
9	Cy Young C. Young	35	1895	CLE	10	.778	47	40	3.26	121	36	4	0	369.2	363	134	177	10	75	8	7		1,518	6	2.95	1.83	1.61	0.24	8.0	4.9	1.18	.271	4.31	66	3.95	80	8.84	43.3
10	Jack Coombs J. Coombs	34	1910	PHA	9	.791	48	41	1.44	241	38	13	1	380.0	271	61	84	0	129	7	6		1,469	11	5.71	3.06	1.87	0.00	16.4	8.8	1.05	.248	1.99	49	1.94	77	6.42	15.8
11	Christy Mathewson C. Mathewson	34	1905	NYG	9	.791	46	40	1.18	224	35	11	3	365.2	266	48	85	4	65	2	6		1,388	7	5.51	1.60	3.45	0.10	16.1	4.7	0.91	.240	2.09	39	1.88	64	6.55	34.9
12	Kid Nichols K. Nichols	34	1893	BSN	14	.708	52	44	3.52	94	43	1	1	425.0	426	166	222	15	118	15	7		1,817	5	1.99	2.50	0.80	0.32	5.2	6.5	1.28	.261	4.70	73	4.20	87	9.02	33.1
13	Cy Young C. Young	34	1893	CLE	16	.680	53	46	3.36	102	42	1	1	422.2	442	158	230	10	103	10	7		1,806	14	2.17	2.19	0.99	0.21	5.6	5.7	1.29	.273	4.90	70	3.87	81	9.41	45.2
14	Lefty Grove L. Grove	33	1931	PHA	5	.868	44	33	2.09	191	29	4	5	314.2	277	73	91	10	64	1	10		1,267	2	5.46	1.83	2.98	0.29	15.1	5.1	1.08	.267	2.60	43	2.76	64	7.92	40.8
15	Grover Alexander G. Alexander	33	1916	PHN	12	.733	48	45	1.55	167	38	16	3	389.0	323	67	90	6	50	10	3		1,500	3	3.86	1.16	3.34	0.14	11.1	3.3	0.96	.250	2.08	58	2.12	79	7.47	25.4
16	Walter Johnson W. Johnson	33	1912	WSH	12	.733	50	37	1.39	303	34	7	2	369.0	259	57	89	2	76	16	13		1,413	11	7.39	1.85	3.99	0.05	21.4	5.4	0.91	.253	2.17	42	2.03	63	6.32	49.6
17	Christy Mathewson C. Mathewson	33	1904	NYG	12	.733	48	46	2.03	212	33	4	1	367.2	306	83	120	7	78	4	2		1,437	10	5.19	1.91	2.72	0.17	14.8	5.4	1.04	.263	2.94	75	2.18	78	7.49	25.8
18	Cy Young C. Young	33	1901	BSA	10	.767	43	41	1.62	158	38	5	0	371.1	324	67	112	6	37	7	2		1,440	2	3.83	0.90	4.27	0.15	11.0	2.6	0.97	.258	2.71	44	2.64	72	7.85	42.6
19	Jouett Meekin J. Meekin	33	1894	NYG	9	.786	53	49	3.70	137	41	1	2	418.0	414	172	240	13	176	11	4		1,805	22	2.95	3.79	0.78	0.28	7.6	9.8	1.41	.273	5.17	71	4.91	94	8.91	12.7
20	Amos Rusie A. Rusie	33	1893	NYG	21	.611	56	52	3.23	208	50	4	1	482.0	451	173	260	15	218	16	4		2,111	26	3.88	4.07	0.95	0.28	9.9	10.3	1.39	.264	4.85	71	4.24	94	8.42	12
21	Denny McLain D. McLain	32	1968	DET	8	.800	44	44	2.02	293	29	6	0	352.2	259	79	94	32	67	6	0	2	1,361	3	7.48	1.71	4.37	0.82	21.5	4.9	0.92	.236	2.40	61	2.41	75	6.61	24.8
22	Dizzy Dean D. Dean	32	1934	SLN	8	.800	53	36	2.59	212	26	8	7	337.2	308	97	116	16	80	7	14		1,394	2	5.65	2.13	2.65	0.43	15.2	5.7	1.15	.271	3.09	59	2.98	71	8.21	32.6
23	Jim Bagby J. Bagby	32	1920	CLE	13	.711	50	40	2.84	76	31	3	0	354.2	358	112	126	9	80	5	9		1,415	7	1.93	2.03	0.95	0.23	5.4	5.7	1.23	.280	3.20	72	3.26	88	9.08	12
24	Grover Alexander G. Alexander	32	1915	PHN	11	.744	51	44	1.23	251	38	12	3	394.0	267	54	89	3	68	10	7		1,504	2	5.73	1.55	3.69	0.07	16.7	4.5	0.85	.225	2.03	41	1.74	60	6.10	44.1
25	Cy Young C. Young	32	1902	BSA	11	.744	45	43	2.15	160	41	3	0	384.2	350	92	136	6	53	13	1		1,506	3	3.74	1.24	3.02	0.14	10.6	3.5	1.05	.270	3.18	60	2.55	74	8.19	37.5