Ed Walsh and Doc White are tied for the most shutouts in a month, with 6 shutouts.

Interpreted as:

most shutouts by a player in a month

	NAME	SHO	MONTH	G	W	L	W%	GS	ERA	SO	CG	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	Ed Walsh E. Walsh	6	September 1908	13	9	4	.692	12		74	11	0	107.0	70		13	1	12	2	1		396	2	6.22	1.01	6.17	0.08	18.7	3.0	0.77	.225	1.09	5.89
2	Ed Walsh E. Walsh	6	August 1906	11	8	2	.800	9		49	9	0	77.0	47		9	1	12	1	2			1	5.73	1.40	4.08	0.12		4.6	0.77	.230	1.05	5.49
3	Doc White D. White	6	September 1904	7	7	0	1.000	7	0.43	45	7	0	63.0	28		3	0	18	1	0			0	6.43	2.57	2.50	0.00		7.9	0.73	.170	0.43	4.00
4	Orel Hershiser O. Hershiser	5	September 1988	6	5	0	1.000	6	0.00	34	5	0	55.0	30	0	0	0	9	0	0	3	201	1	5.56	1.47	3.78	0.00	16.9	4.5	0.71	.190	0.00	4.91
5	Bob Gibson B. Gibson	5	June 1968	6	6	0	1.000	6	0.50	43	6	0	54.0	28	3	3	1	8	2	0	0	193	0	7.17	1.33	5.38	0.17	22.3	4.1	0.67	.194	0.50	4.67
6	Don Drysdale D. Drysdale	5	May 1968	8	5	1	.833	8	0.53	45	5	0	68.0	46	4	6	0	12	1	0	2	257	2	5.96	1.59	3.75	0.00	17.5	4.7	0.85	.231	0.79	6.09
7	Ed Walsh E. Walsh	5	August 1910	9	4	2	.667	7		64	6	2	67.2	37		10	0	14	0	2		255	1	8.51	1.86	4.57	0.00	25.1	5.5	0.75	.209	1.33	4.92
8	Jack Coombs J. Coombs	5	July 1910	11	10	1	.909	10		49	10	0	90.1	68		17	0	28	1	1		352	3	4.88	2.79	1.75	0.00	13.9	8.0	1.06	.248	1.69	6.77
9	Jack Chesbro J. Chesbro	5	July 1902	7	6	1	.857	7	0.72	32	7	0	62.2	39	5	6	0	6	3	0		234	0	4.60	0.86	5.33	0.00	13.7	2.6	0.72	.202	0.86	5.60
10	John Tudor J. Tudor	4	September 1985	6	5	0	1.000	6	1.69	34	4	0	48.0	36	9	9	2	7	0	0	0	182	0	6.38	1.31	4.86	0.38	18.7	3.8	0.90	.245	1.69	6.75
11	Orel Hershiser O. Hershiser	4	July 1984	6	4	1	.800	5	0.78	48	4	0	46.0	20	4	4	1	7	1	0	1	165	1	9.39	1.37	6.86	0.20	29.1	4.2	0.59	.176	0.78	3.91
12	Fernando Valenzuela F. Valenzuela	4	April 1981	5	5	0	1.000	5	0.20	43	5	0	45.0	28	1	1	0	11	0	0	1	169	0	8.60	2.20	3.91	0.00	25.4	6.5	0.87	.243	0.20	5.60
13	Mike Torrez M. Torrez	4	September 1976	7	6	1	.857	7	1.26	27	6	0	57.1	31	8	9	0	14	0	0	0	213	1	4.24	2.20	1.93	0.00	12.7	6.6	0.78	.180	1.41	4.87
14	Gaylord Perry G. Perry	4	August 1973	8	6	2	.750	8	2.26	38	6	0	67.2	50	17	18	4	25	0	0	2	267	3	5.05	3.33	1.52	0.53	14.2	9.4	1.11	.230	2.39	6.65
15	Bert Blyleven B. Blyleven	4	June 1973	7	4	2	.667	7	1.21	44	5	0	59.1	49	8	9	0	11	4	0	0	233	2	6.67	1.67	4.00	0.00	18.9	4.7	1.01	.282	1.37	7.43
16	Gaylord Perry G. Perry	4	September 1970	7	6	0	1.000	7	1.09	37	6	0	58.0	34	7	10	0	8	2	0	0	217	4	5.74	1.24	4.63	0.00	17.1	3.7	0.72	.200	1.55	5.28
17	Ray Culp R. Culp	4	September 1968	7	6	1	.857	7	1.31	58	6	0	62.0	40	9	9	2	15	0	0	4	236	4	8.42	2.18	3.87	0.29	24.6	6.4	0.89	.236	1.31	5.81
18	Sandy Koufax S. Koufax	4	September 1965	9	4	2	.667	8	1.58	66	5	1	62.2	34	11	12	3	11	1	1	0	230	1	9.48	1.58	6.00	0.43	28.7	4.8	0.72	.208	1.72	4.88
19	Ray Herbert R. Herbert	4	May 1963	7	4	1	.800	7	1.93	32	4	0	56.0	36	12	12	4	6	1	0	0	208	0	5.14	0.96	5.33	0.64	15.4	2.9	0.75	.194	1.93	5.79
20	Billy Pierce B. Pierce	4	August 1953	8	5	2	.714	6	0.86	46	6	1	62.2	38	6	8	3	14	1	2		237	0	6.61	2.01	3.29	0.43	19.4	5.9	0.83	.202	1.15	5.46
21	Mort Cooper M. Cooper	4	June 1942	7	7	0	1.000	7	0.72	26	6	0	62.1	38	5	6	1	12	1	0		234	1	3.75	1.73	2.17	0.14	11.1	5.1	0.80	.191	0.87	5.49
22	Bill Lee B. Lee	4	September 1938	9	6	0	1.000	6	0.64	25	6	2	56.2	58	4	4	0	11	0	2		227	3	3.97	1.75	2.27	0.00	11.0	4.8	1.22	.304	0.64	9.21
23	Carl Hubbell C. Hubbell	4	July 1933	8	6	1	.857	6	0.39	25	5	0	69.0	46	3	6	0	7	0	2		253	0	3.26	0.91	3.57	0.00	9.9	2.8	0.77	.208	0.78	6.00
24	Ed Wells E. Wells	4	June 1926	7	6	1	.857	7	1.44	17	6	0	62.2	46	10	16	2	22	2	0		245	0	2.44	3.16	0.77	0.29	6.9	9.0	1.09	.218	2.30	6.61
25	Walter Johnson W. Johnson	4	May 1918	8	6	2	.750	6	0.79	25	6	0	68.2	40		6	1	18	2	2		254	0	3.28	2.36	1.39	0.13	9.8	7.1	0.84	.188	0.79	5.24