most wins in a season by a pitcher since 1940

Since 1940, Denny McLain has won the most games in a season, with 31 wins in 1968.

	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	Denny McLain D. McLain	31	1968	DET	6	.838	41	41	1.96	280	28	6	0	336.0	241	73	86	31	63	6	0	2	1,288	3	7.50	1.69	4.44	0.83	21.7	4.9	0.90	.231	2.30	64	2.53	79	6.46	24.8
2	Hal Newhouser H. Newhouser	29	1944	DET	9	.763	47	34	2.22	187	25	6	2	312.1	264	77	94	6	102	1	10		1,271	4	5.39	2.94	1.83	0.17	14.7	8.0	1.17	.265	2.71	62	2.58	72	7.61	34.5
3	Robin Roberts R. Roberts	28	1952	PHN	7	.800	39	37	2.59	148	30	3	2	330.0	292	95	104	22	45	5	2		1,310	3	4.04	1.23	3.29	0.60	11.3	3.4	1.02	.248	2.84	72	2.82	78	7.96	28.9
4	Bob Welch B. Welch	27	1990	OAK	6	.818	35	35	2.95	127	2	2	0	238.0	214	78	90	26	77	5	0	4	979	2	4.80	2.91	1.65	0.98	13.0	7.9	1.22	.253	3.40	79	4.19	110	8.09	-11.1
5	Steve Carlton S. Carlton	27	1972	PHI	10	.730	41	41	1.97	310	30	8	0	346.1	257	76	84	17	87	1	0	8	1,351	8	8.06	2.26	3.56	0.44	22.9	6.4	0.99	.256	2.18	56	2.00	59	6.68	53.5
6	Sandy Koufax S. Koufax	27	1966	LAD	9	.750	41	41	1.73	317	27	5	0	323.0	241	62	74	19	77	0	0	4	1,274	7	8.83	2.15	4.12	0.53	24.9	6.0	0.98	.258	2.06	53	2.07	65	6.72	41.8
7	Don Newcombe D. Newcombe	27	1956	BKN	7	.794	38	36	3.06	139	18	5	0	268.0	219	91	101	33	46	3	2	8	1,052	4	4.67	1.54	3.02	1.11	13.2	4.4	0.99	.224	3.39	78	3.48	86	7.35	17.3
8	Dizzy Trout D. Trout	27	1944	DET	14	.659	49	40	2.12	144	33	7	0	352.1	314	83	104	9	83	4	6		1,421	2	3.68	2.12	1.73	0.23	10.1	5.8	1.13	.258	2.66	59	2.79	78	8.02	31
9	Bob Feller B. Feller	27	1940	CLE	11	.711	43	37	2.61	261	31	4	4	320.1	245	93	102	13	118	5	5		1,304	8	7.33	3.32	2.21	0.37	20.0	9.0	1.13	.256	2.87	65	2.89	73	6.88	39.3
10	Juan Marichal J. Marichal	26	1968	SFG	9	.743	38	38	2.43	218	30	5	0	325.2	295	88	106	21	46	6	0	9	1,307	8	6.02	1.27	4.74	0.58	16.7	3.5	1.05	.270	2.93	83	2.36	85	8.15	14.6
11	Sandy Koufax S. Koufax	26	1965	LAD	8	.765	43	41	2.04	382	27	8	2	335.2	216	76	90	26	71	5	2	4	1,297	11	10.24	1.90	5.38	0.70	29.5	5.5	0.86	.234	2.41	63	1.93	61	5.79	47.9
12	Bob Feller B. Feller	26	1946	CLE	15	.634	48	42	2.18	348	36	10	4	371.1	277	90	101	11	153	3	5		1,512	3	8.43	3.71	2.27	0.27	23.0	10.1	1.16	.267	2.45	65	2.16	65	6.71	48.3
13	Hal Newhouser H. Newhouser	26	1946	DET	9	.743	37	34	1.94	275	29	6	1	292.2	215	63	77	10	98	1	2		1,176	8	8.46	3.01	2.81	0.31	23.4	8.3	1.07	.259	2.37	54	1.96	56	6.61	49.6
14	Steve Stone S. Stone	25	1980	BAL	7	.781	37	37	3.23	149	9	1	0	250.2	224	90	103	22	101	6	0	3	1,048	7	5.35	3.63	1.48	0.79	14.2	9.6	1.30	.262	3.70	83	3.98	101	8.04	-1.1
15	Ron Guidry R. Guidry	25	1978	NYY	3	.893	35	35	1.74	248	16	9	0	273.2	187	53	61	13	72	1	0	1	1,057	7	8.16	2.37	3.44	0.43	23.5	6.8	0.95	.241	2.01	48	2.18	58	6.15	48.5
16	Catfish Hunter C. Hunter	25	1974	OAK	12	.676	41	41	2.49	143	23	6	0	318.1	268	88	97	25	46	4	0	2	1,240	1	4.04	1.30	3.11	0.71	11.5	3.7	0.99	.238	2.74	73	3.16	86	7.58	17.6
17	Fergie Jenkins F. Jenkins	25	1974	TEX	12	.676	41	41	2.82	225	29	6	0	328.1	286	103	117	27	45	8	0	3	1,305	4	6.17	1.23	5.00	0.74	17.2	3.4	1.01	.259	3.21	79	2.75	77	7.84	29.4
18	Mickey Lolich M. Lolich	25	1971	DET	14	.641	45	45	2.92	308	29	4	0	376.0	336	122	133	36	92	7	0	2	1,538	7	7.37	2.20	3.35	0.86	20.0	6.0	1.14	.274	3.18	83	2.84	78	8.04	32.5
19	Tom Seaver T. Seaver	25	1969	NYM	7	.781	36	35	2.21	208	18	5	0	273.1	202	67	75	24	82	7	1	9	1,089	8	6.85	2.70	2.54	0.79	19.1	7.5	1.04	.232	2.47	62	3.10	91	6.65	9.4
20	Jim Kaat J. Kaat	25	1966	MIN	13	.658	41	41	2.75	205	19	3	0	304.2	271	93	114	29	55	3	0	4	1,227	12	6.06	1.62	3.73	0.86	16.7	4.5	1.07	.259	3.37	77	3.02	82	8.01	22.7
21	Juan Marichal J. Marichal	25	1966	SFG	6	.806	37	36	2.23	222	25	4	0	307.1	228	76	88	32	36	5	1	3	1,180	3	6.50	1.05	6.17	0.94	18.8	3.1	0.86	.221	2.58	62	2.86	82	6.68	21.3
22	Sandy Koufax S. Koufax	25	1963	LAD	5	.833	40	40	1.88	306	20	11	0	311.0	214	65	68	18	58	3	0	7	1,210	6	8.86	1.68	5.28	0.52	25.3	4.8	0.87	.238	1.97	62	1.85	62	6.19	41.9
23	Juan Marichal J. Marichal	25	1963	SFG	8	.758	41	40	2.41	248	18	5	0	321.1	259	86	102	27	61	2	1	6	1,270	2	6.95	1.71	4.07	0.76	19.5	4.8	1.00	.249	2.86	73	2.62	80	7.25	23.3
24	Don Drysdale D. Drysdale	25	1962	LAD	9	.735	43	41	2.83	232	19	2	1	314.1	272	99	122	21	78	11	2	12	1,289	8	6.64	2.23	2.97	0.60	18.0	6.1	1.11	.265	3.49	78	2.86	81	7.79	23.9
25	Whitey Ford W. Ford	25	1961	NYY	4	.862	39	39	3.21	209	11	3	0	283.0	242	101	108	23	92	1	0	3	1,159	8	6.65	2.93	2.27	0.73	18.0	7.9	1.18	.263	3.43	85	3.14	82	7.70	22.7