most wins by a rookie pitcher since 1920

Since 1920, Monte Weaver has won the most games by a rookie, with 22 wins in 1932.

Interpreted as:

most regular-season wins by a rookie pitcher since 1920

	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	Monte Weaver M. Weaver	22	1932	WSH	10	.688	43	30	4.08	83	13	1	2	234.0	236	106	126	9	112	0	9		1,027	4	3.19	4.31	0.74	0.35	8.1	10.9	1.49	.276	4.85	93	4.24	99	9.08	0.6
2	Larry Jansen L. Jansen	21	1947	NYG	5	.808	42	30	3.16	104	20	1	1	248.0	241	87	102	22	57	1	5		985	2	3.77	2.07	1.82	0.80	10.6	5.8	1.20	.273	3.70	77	3.51	87	8.75	14.4
3	Dave Ferriss D. Ferriss	21	1945	BSA	10	.677	35	31	2.96	94	26	5	2	264.2	263	87	101	6	85	7	4		1,103	4	3.20	2.89	1.11	0.20	8.5	7.7	1.31	.282	3.43	85	3.17	89	8.94	12
4	Bill Voiselle B. Voiselle	21	1944	NYG	16	.568	43	41	3.02	161	25	1	0	312.2	276	105	138	31	118	4	1		1,327	7	4.63	3.40	1.36	0.89	12.1	8.9	1.26	.242	3.97	82	3.97	107	7.94	-9
5	Johnny Beazley J. Beazley	21	1942	SLN	6	.778	43	23	2.13	91	13	3	3	215.1	181	51	67	4	73	3	15		890	7	3.80	3.05	1.25	0.17	10.2	8.2	1.18	.246	2.80	63	2.87	82	7.57	15.3
6	Wes Ferrell W. Ferrell	21	1929	CLE	10	.677	43	25	3.60	100	18	1	5	242.2	256	97	112	7	109	3	12		1,061	2	3.71	4.04	0.92	0.26	9.4	10.3	1.50	.296	4.15	82	4.10	91	9.49	11.6
7	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	95	3.81	102	8.33	-1.9
8	Bob Grim B. Grim	20	1954	NYY	6	.769	37	20	3.26	108	8	1	1	199.0	175	72	78	9	85	3	8		825	4	4.88	3.84	1.27	0.41	13.1	10.3	1.31	.268	3.53	92	3.23	91	7.91	7.1
9	Harvey Haddix H. Haddix	20	1953	SLN	9	.690	36	33	3.06	163	19	6	1	253.0	220	86	97	24	69	4	2		1,031	9	5.80	2.45	2.36	0.85	15.8	6.7	1.14	.254	3.45	71	3.40	79	7.83	25.1
10	Alex Kellner A. Kellner	20	1949	PHA	12	.625	38	27	3.75	94	19	0	1	245.0	243	102	120	18	129	2	9		1,069	7	3.45	4.74	0.73	0.66	8.8	12.1	1.52	.272	4.41	89	4.30	102	8.93	-2.3
11	Gene Bearden G. Bearden	20	1948	CLE	7	.741	37	29	2.43	80	15	6	1	229.2	187	62	72	9	106	3	4		935	5	3.13	4.15	0.75	0.35	8.6	11.3	1.28	.242	2.82	60	3.90	99	7.33	0.4
12	Lou Fette L. Fette	20	1937	BSN	10	.667	35	33	2.88	70	23	5	0	259.0	243	83	93	5	81	4	2		1,075	2	2.43	2.81	0.86	0.17	6.5	7.5	1.25	.260	3.23	79	3.73	100	8.44	-2.1
13	Cliff Melton C. Melton	20	1937	NYG	9	.690	46	27	2.61	142	14	2	7	248.0	216	72	90	9	55	6	14		1,004	2	5.15	2.00	2.58	0.33	14.1	5.5	1.09	.261	3.27	67	3.10	78	7.84	23.5
14	Jim Turner J. Turner	20	1937	BSN	11	.645	33	30	2.38	69	24	5	1	256.2	228	68	80	13	52	0	3		1,031	0	2.42	1.82	1.33	0.46	6.7	5.0	1.09	.240	2.81	66	3.77	101	7.99	-3.1
15	Mark Fidrych M. Fidrych	19	1976	DET	9	.679	31	29	2.34	97	24	4	0	250.1	217	65	76	12	53	3	2	3	996	6	3.49	1.91	1.83	0.43	9.7	5.3	1.08	.247	2.73	63	3.15	86	7.80	13.7
16	Jerry Koosman J. Koosman	19	1968	NYM	12	.613	35	34	2.08	178	17	7	0	263.2	221	61	72	16	69	8	0	7	1,058	8	6.08	2.36	2.58	0.55	16.8	6.5	1.10	.260	2.46	70	2.70	96	7.54	3.7
17	Wally Bunker W. Bunker	19	1964	BAL	5	.792	29	29	2.69	96	12	1	0	214.0	161	64	72	17	62	3	0	5	850	3	4.04	2.61	1.55	0.71	11.3	7.3	1.04	.214	3.03	77	3.65	100	6.77	-0.2
18	Gary Peters G. Peters	19	1963	CWS	8	.704	41	30	2.33	189	13	4	1	243.0	192	63	69	9	68	8	4	2	978	5	7.00	2.52	2.78	0.33	19.3	7.0	1.07	.260	2.56	67	2.34	67	7.11	32.1
19	Jack Sanford J. Sanford	19	1957	PHI	8	.704	33	33	3.08	188	15	3	0	236.2	194	81	94	22	94	3	0	2	989	12	7.15	3.57	2.00	0.84	19.0	9.5	1.22	.252	3.57	80	3.31	87	7.38	12.6
20	Dick Newsome D. Newsome	19	1941	BSA	10	.655	36	29	4.13	58	17	2	0	213.2	235	98	115	13	79	7	4		944	6	2.44	3.33	0.73	0.55	6.1	8.4	1.47	.282	4.84	97	4.12	99	9.90	1.6
21	Elmer Riddle E. Riddle	19	1941	CIN	4	.826	33	22	2.24	80	15	4	1	216.2	180	54	68	8	59	5	4		884	2	3.32	2.45	1.36	0.33	9.0	6.7	1.10	.235	2.82	62	3.29	89	7.48	9.6
22	Curt Davis C. Davis	19	1934	PHN	17	.528	51	31	2.95	99	18	3	5	274.1	283	90	114	14	60	7	16		1,133	1	3.25	1.97	1.65	0.46	8.7	5.3	1.25	.282	3.74	64	3.79	82	9.28	24.9
23	Paul Dean P. Dean	19	1934	SLN	11	.633	39	26	3.43	150	16	5	2	233.1	225	89	96	19	52	5	5		974	1	5.79	2.01	2.88	0.73	15.4	5.3	1.19	.275	3.70	83	3.63	87	8.68	14.4
24	Ed Morris E. Morris	19	1928	BSA	15	.559	47	29	3.53	104	20	0	5	257.2	255	101	118	7	80	5	15		1,087	1	3.63	2.79	1.30	0.24	9.6	7.4	1.30	.278	4.12	88	3.44	89	8.91	12.3
25	Wilcy Moore W. Moore	19	1927	NYY	7	.731	50	12	2.28	75	6	1	13	213.0	185	54	68	3	59	1	30		870	4	3.17	2.49	1.27	0.13	8.6	6.8	1.15	.249	2.87	57	3.35	85	7.82	13.7