most wins in first 45 games of a season by a pitcher

Cy Young won the most games in a season in his first 45 games, with 33 wins in 1901.

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Data note: Pitcher Wins: player game data complete from 1901
Data note: Data: Retrosheet

	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	H/9
1	Cy Young C. Young	33	1901	BSA	10	.767	43	41	1.62	160	38	5	0	371.2	324		112	6	39	8	2			1	3.87	0.94	4.10	0.15		2.9	0.98	.280	2.71	7.85
2	Larry Cheney L. Cheney	26	1912	CHC	10	.722	42	37	2.85	140	28	4	1	303.1	262	96	122	5	111	7	4		1,267	18	4.15	3.29	1.26	0.15	11.0	8.8	1.23	.256	3.62	7.77
3	Russ Ford R. Ford	26	1910	NYH	6	.813	36	33		211	29	8	1	299.2	195		69	4	70	8	3		1,135	5	6.34	2.10	3.01	0.12	18.6	6.2	0.88	.227	2.07	5.86
4	Bill Donovan B. Donovan	26	1901	BKN	14	.650	44	37	2.84	229	35	1	1	342.0	321		151	1	150	8	7			10	6.03	3.95	1.53	0.03		11.4	1.38	.343	3.97	8.45
5	Grover Alexander G. Alexander	24	1911	PHN	12	.667	43	32	0.44	208	27	5	3	323.2	252		120	5	121	8	11			4	5.78	3.36	1.72	0.14		9.3	1.15	.258	3.34	7.01
6	Ed Summers E. Summers	24	1908	DET	14	.632	42	33	0.20	113	23	5	1	316.2	286		115	3	61	21	9		1,288	5	3.21	1.73	1.85	0.09	8.8	4.7	1.10	.260	3.27	8.13
7	Clark Griffith C. Griffith	24	1901	CWS	7	.774	35	30	2.67	69	26	5	1	266.2	275	79	113	4	51	4	5			2	2.33	1.72	1.35	0.14		5.4	1.22	.330	3.81	9.28
8	Joe McGinnity J. McGinnity	24	1901	BAL	19	.558	45	40	3.63	72	36	1	1	357.0	387	144	205	7	95	21	4			5	1.82	2.39	0.76	0.18		6.8	1.35	.317	5.17	9.76
9	Vean Gregg V. Gregg	23	1911	CLE	7	.767	34	26	0.26	126	22	5	0	244.2	172		67	2	86	10	8		960	8	4.63	3.16	1.47	0.07	13.1	9.0	1.05	.231	2.46	6.33
10	Nick Maddox N. Maddox	23	1908	PIT	8	.742	36	32		71	22	4	2	260.2	209		89	5	90	12	4		1,063	4	2.45	3.11	0.79	0.17	6.7	8.5	1.15	.231	3.07	7.22
11	Roscoe Miller R. Miller	23	1901	DET	13	.639	38	36	2.96	78	35	3	1	331.2	339	109	168	1	99	13	1			4	2.12	2.69	0.79	0.03		7.1	1.32	.283	4.56	9.20
12	Jack Harper J. Harper	23	1901	STL	12	.657	39	37	3.62	127	28	1	0	308.2	294	124	158	7	99	16	0			16	3.70	2.89	1.28	0.20		9.4	1.27	.359	4.61	8.57
13	Johnny Beazley J. Beazley	22	1942	SLN	6	.786	44	24	2.17	95	14	3	3	224.1	191	54	70	5	77	3	15		927	7	3.81	3.09	1.23	0.20	10.2	8.3	1.19	.249	2.81	7.66
14	Chick Fraser C. Fraser	22	1901	PHA	16	.579	40	37	3.81	116	35	2	0	331.0	344		210	6	135	32	3			11	3.15	3.67	0.86	0.16		10.1	1.45	.321	5.71	9.35
15	Noodles Hahn N. Hahn	22	1901	CIN	19	.537	42	42	2.71	238	41	2	0	375.1	370	113	159	12	70	8	0			10	5.71	1.68	3.40	0.29		4.5	1.17	.292	3.81	8.87
16	Gene Bearden G. Bearden	21	1948	CLE	7	.750	39	30	2.32	84	16	7	2	240.1	193	62	72	9	107	3	5		971	5	3.15	4.01	0.79	0.34	8.7	11.0	1.25	.240	2.70	7.23
17	Larry Jansen L. Jansen	21	1947	NYG	5	.808	42	30	3.16	103	20	1	1	248.0	240	87	102	22	57	1	5		1,017	2	3.74	2.07	1.81	0.80	10.1	5.6	1.20	.261	3.70	8.71
18	Paul Dean P. Dean	21	1934	SLN	11	.656	41	28	3.26	161	18	5	2	251.1	240	91	100	19	59	6	5		1,051	1	5.77	2.11	2.73	0.68	15.3	5.6	1.19	.274	3.58	8.59
19	Monte Weaver M. Weaver	21	1932	WSH	9	.700	41	28	4.10	77	12	1	2	221.2	227	101	120	7	109	0	9		983	4	3.13	4.43	0.71	0.28	7.8	11.1	1.52	.278	4.87	9.22
20	Hugh Bedient H. Bedient	21	1912	BSA	9	.700	45	30	0.29	130	20	0	2	249.0	217		95	6	62	5	13		1,014	2	4.70	2.24	2.10	0.22	12.8	6.1	1.12	.260	3.43	7.84
21	Red Donahue R. Donahue	21	1901	PHN	13	.618	34	33	2.59	85	33	1	0	295.1	299	85	111	2	58	9	1			3	2.59	1.77	1.47	0.06		4.8	1.21	.280	3.38	9.11
22	Deacon Phillippe D. Phillippe	21	1901	PIT	13	.618	37	32	2.22	108	30	1	2	296.0	275		115	7	39	10	5			3	3.28	1.19	2.77	0.21		3.6	1.06	.289	3.50	8.36
23	Jack Chesbro J. Chesbro	21	1901	PIT	10	.677	36	28	2.38	122	26	6	1	287.2	261	76	104	4	52	15	8			4	3.82	1.63	2.35	0.13		5.5	1.09	.343	3.25	8.17
24	Al Orth A. Orth	21	1901	PHN	12	.636	35	33	2.27	100	30	6	0	281.2	250		101	3	32	8	2			4	3.20	1.02	3.13	0.10		3.1	1.00	.273	3.23	7.99
25	Tom Browning T. Browning	20	1985	CIN	9	.690	38	38	3.55	155	6	4	0	261.1	242	103	111	29	73	3	0	8	1,083	2	5.34	2.51	2.12	1.00	14.3	6.7	1.21	.259	3.82	8.33

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Fri 10/30	TBR	@	MIL	8:00 PM
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Cy Young won the most games in a season in his first 45 games, with 33 wins in 1901.

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