most shutouts in a month MLB

	LEAGUE	SHO	MONTH	G	W%	W	L	ERA	SO	SV	IP	H	ER	R	HR	BB	HBP	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	AL	42	September 1904	268	.500	126	126	0.00	1,096	1	2326.1	2,006	0	805	29	555	73			52	4.24	2.15	1.97	0.11		6.7	1.10	.304	3.11	7.76
2	AL	39	July 1909	262	.500	130	130	0.00	1,022	8	2339.0	2,001	0	846	28	641	90		9,373	62	3.93	2.47	1.59	0.11	10.9	6.8	1.13	.260	3.26	7.70
3	AL	38	September 1906	242	.500	117	117	0.00	980	5	2121.1	1,928	0	802	21	513	73			57	4.16	2.18	1.91	0.09		7.2	1.15	.344	3.40	8.18
4	NL	37	July 1907	228	.500	114	114	0.00	825	6	2007.2	1,744	0	704	28	596	75		8,143	37	3.70	2.67	1.38	0.13	10.1	7.3	1.17	.259	3.16	7.82
5	NL	36	September 1916	262	.500	125	125	0.00	1,021	9	2284.2	2,123	0	861	55	561	62		9,327	56	4.02	2.21	1.82	0.22	10.9	6.0	1.17	.271	3.39	8.36
6	NL	35	September 1917	246	.500	118	118	0.00	951	6	2232.0	1,996	0	806	32	588	58		9,022	34	3.83	2.37	1.62	0.13	10.5	6.5	1.16	.266	3.25	8.05
7	AL	34	September 1976	338	.500	169	169	3.33	1,549	49	2999.2	2,839	1,110	1,250	182	1,009	63	59	12,552	83	4.65	3.03	1.54	0.55	12.3	8.0	1.28	.273	3.75	8.52
8	NL	34	August 1971	338	.500	169	169	3.33	1,835	51	3033.2	2,892	1,121	1,290	228	997	57	127	12,737	104	5.44	2.96	1.84	0.68	14.4	7.8	1.28	.277	3.83	8.58
9	NL	33	August 1916	232	.500	115	115	0.00	857	12	2082.1	1,888	0	748	29	517	51		8,475	42	3.70	2.23	1.66	0.13	10.1	6.1	1.15	.265	3.23	8.16
10	NL	33	September 1908	264	.500	130	130	0.00	965	11	2355.2	2,104	0	923	23	667	77		9,591	43	3.69	2.55	1.45	0.09	10.1	7.0	1.18	.265	3.53	8.04
11	NL	32	August 1976	346	.500	173	173	3.28	1,759	54	3109.1	2,950	1,132	1,271	179	1,034	46	115	13,027	87	5.09	2.99	1.70	0.52	13.5	7.9	1.28	.277	3.68	8.54
12	NL	32	September 1972	328	.500	164	164	3.38	1,881	65	2961.0	2,773	1,112	1,269	206	1,099	54	116	12,537	110	5.72	3.34	1.71	0.63	15.0	8.8	1.31	.276	3.86	8.43
13	NL	32	August 1917	236	.500	114	114	0.00	791	10	2135.0	1,968	0	751	35	498	57		8,647	30	3.33	2.10	1.59	0.15	9.1	5.8	1.16	.266	3.17	8.30
14	NL	32	September 1907	226	.500	105	105	0.00	835	5	1913.1	1,672	0	739	18	576	70		7,842	48	3.93	2.71	1.45	0.08	10.6	7.3	1.17	.261	3.48	7.86
15	AL	31	September 1974	332	.500	165	165	3.18	1,700	39	2995.2	2,765	1,057	1,236	194	1,064	64	102	12,573	77	5.11	3.20	1.60	0.58	13.5	8.5	1.28	.269	3.71	8.31
16	AL	31	August 1972	348	.500	174	174	3.29	1,875	65	3139.2	2,843	1,146	1,250	230	1,116	67	150	13,138	81	5.37	3.20	1.68	0.66	14.3	8.5	1.26	.265	3.58	8.15
17	AL	31	July 1972	366	.500	183	183	3.06	1,998	69	3301.1	2,970	1,121	1,268	250	1,078	63	123	13,671	103	5.45	2.94	1.85	0.68	14.6	7.9	1.23	.265	3.46	8.10
18	AL	31	August 1910	246	.500	120	120	0.00	1,084	7	2214.0	1,979	0	888	33	693	95		8,995	71	4.41	2.82	1.56	0.13	12.1	7.7	1.21	.274	3.61	8.04
19	AL	31	September 1908	242	.500	118	118	0.00	1,029	5	2150.0	1,834	0	750	23	533	76		8,667	45	4.31	2.23	1.93	0.10	11.9	6.1	1.10	.258	3.14	7.68
20	NL	31	September 1906	230	.500	112	112	0.00	916	12	1980.2	1,801	0	799	18	625	66		7,998	38	4.16	2.84	1.47	0.08	11.5	7.8	1.22	.280	3.63	8.18
21	NL	31	July 1902	222	.500	109	109	0.00	351	3	1967.1	1,861	0	727	11	400	80		7,216	31	1.61	1.83	0.88	0.05	4.9	5.5	1.15	.290	3.33	8.51
22	NL	30	August 1968	314	.500	157	157	2.88	1,781	54	2832.0	2,631	906	1,129	181	826	75	136	11,769	101	5.66	2.63	2.16	0.58	15.1	7.0	1.22	.275	3.59	8.36
23	NL	30	May 1968	278	.500	138	138	2.73	1,658	43	2548.0	2,193	773	882	132	764	50	122	10,432	87	5.86	2.70	2.17	0.47	15.9	7.3	1.16	.263	3.12	7.75
24	AL	30	August 1909	222	.500	108	108	0.00	897	6	1980.0	1,778	0	741	14	574	83		8,046	59	4.08	2.61	1.56	0.06	11.1	7.1	1.19	.272	3.37	8.08
25	NL	30	August 1909	236	.500	116	116	0.00	855	12	2120.0	1,872	0	869	28	647	58		8,543	49	3.63	2.75	1.32	0.12	10.0	7.6	1.19	.265	3.69	7.95