Ed Walsh and Joe McGinnity are tied for the most complete games in a month, with 11 complete games.

Interpreted as:

most pitching complete games by a player in a month

	NAME	CG	MONTH	G	W	L	W%	GS	ERA	SO	SHO	SV	IP	H	ER	R	HR	BB	HBP	GF	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Ed Walsh E. Walsh	11	September 1908	13	9	4	.692	12		74	6	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	11	July 1907	11	6	5	.545	11		45	2	0	101.0	78		24	1	20	2	0	397	2	4.01	1.78	2.25	0.09	11.3	5.0	0.97	.234	2.14	6.95
3	Joe McGinnity J. McGinnity	11	August 1903	12	7	5	.583	12		58	0	0	105.0	89		36	1	22	2	0	420	1	4.97	1.89	2.64	0.09	13.8	5.2	1.06	.261	3.09	7.63
4	Jack Coombs J. Coombs	10	July 1910	11	10	1	.909	10		49	5	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
5	Joe McGinnity J. McGinnity	10	September 1901	12	5	7	.417	12	3.47	18	1	0	93.1	98	36	55	1	20	8	0		3	1.74	1.93	0.90	0.10		5.6	1.26	.313	5.30	9.45
6	Snake Wiltse S. Wiltse	10	August 1901	10	8	2	.800	10	2.39	23	2	0	94.0	99	25	41	1	17	4	0	400	3	2.20	1.63	1.35	0.10	5.8	4.3	1.23	.276	3.93	9.48
7	Jack Taylor J. Taylor	10	July 1901	10	6	4	.600	10	2.43	27	0	0	89.0	105		45	1	8	1	0		0	2.73	0.81	3.38	0.10		2.0	1.27	.293	4.55	10.62
8	Urban Shocker U. Shocker	9	August 1921	10	8	1	.889	10	3.14	37	0	0	83.0	90	29	35	2	22	2	0	359	1	4.01	2.39	1.68	0.22	10.3	6.1	1.35	.297	3.80	9.76
9	Grover Alexander G. Alexander	9	September 1917	9	8	1	.889	9	1.76	44	2	0	82.0	78	16	17	0	9	1	0	329	0	4.83	0.99	4.89	0.00	13.4	2.7	1.06	.284	1.87	8.56
10	Jeff Pfeffer J. Pfeffer	9	September 1915	9	5	4	.556	9	1.50	27	1	0	84.0	61	14	16	0	19	7	0	324	0	2.89	2.04	1.42	0.00	8.3	5.9	0.95	.225	1.71	6.54
11	Dave Davenport D. Davenport	9	September 1915	14	8	2	.800	11	1.51	40	4	0	101.1	63	17	18	2	19	0	2		1	3.55	1.69	2.11	0.18		6.4	0.81	.258	1.60	5.60
12	Grover Alexander G. Alexander	9	September 1914	10	8	2	.800	9	1.98	53	2	0	82.0	65	18	25	0	18	2	1	332	0	5.82	1.98	2.94	0.00	16.0	5.4	1.01	.251	2.74	7.13
13	Bill James B. James	9	September 1914	10	8	0	1.000	9	2.15	54	0	0	88.0	78	21	30	1	31	1	1	357	1	5.52	3.17	1.74	0.10	15.1	8.7	1.24	.285	3.07	7.98
14	Dick Rudolph D. Rudolph	9	September 1914	9	9	0	1.000	9	1.56	47	3	0	81.0	70	14	19	2	8	0	0	307	0	5.22	0.89	5.88	0.22	15.3	2.6	0.96	.272	2.11	7.78
15	Ed Walsh E. Walsh	9	August 1911	12	7	4	.636	9	0.00	36	3	1	86.0	65		20	1	18	2	3		2	3.77	1.88	2.00	0.10		5.2	0.97	.224	2.09	6.80
16	Mordecai Brown M. Brown	9	August 1909	10	7	2	.778	9		40	4	0	81.0	46		16	0	7	1	1	290	4	4.44	0.78	5.71	0.00	13.8	2.4	0.65	.190	1.78	5.11
17	Ed Walsh E. Walsh	9	August 1906	11	8	2	.800	9		49	6	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
18	Christy Mathewson C. Mathewson	9	September 1905	10	8	1	.889	9		65	1	1	84.0	57		21	1	13	0	1	316	1	6.96	1.39	5.00	0.11	20.6	4.1	0.83	.236	2.25	6.11
19	Frank Owen F. Owen	9	July 1905	10	6	3	.667	10		36	1	0	89.1	67		24	1	12	2	0		2	3.63	1.21	3.00	0.10		3.7	0.88	.242	2.42	6.75
20	Jack Chesbro J. Chesbro	9	September 1904	11	9	2	.818	10	1.50	42	0	0	84.0	66	14	21	1	10	0	1		1	4.50	1.07	4.20	0.11		3.2	0.90	.254	2.25	7.07
21	Bill Dinneen B. Dinneen	9	September 1904	9	4	5	.444	9	2.37	39	2	0	76.0	64	20	30	2	15	0	0	296	1	4.62	1.78	2.60	0.24	13.2	5.1	1.04	.258	3.55	7.58
22	Oscar Jones O. Jones	9	September 1904	9	4	5	.444	9		16	0	0	75.0	67		28	1	11	2	0	296	2	1.92	1.32	1.45	0.12	5.4	3.7	1.04	.248	3.36	8.04
23	Norwood Gibson N. Gibson	9	September 1904	9	5	3	.625	9	1.68	38	0	0	75.0	53	14	24	3	17	1	0	292	1	4.56	2.04	2.24	0.36	13.0	5.8	0.93	.215	2.88	6.36
24	Jack Powell J. Powell	9	September 1904	10	3	4	.429	10	1.98	39	1	0	82.0	76	18	25	2	18	2	0		3	4.28	1.98	2.17	0.22		5.9	1.15	.305	2.74	8.34
25	Frank Owen F. Owen	9	August 1904	9	3	6	.333	9	1.62	21	1	0	78.0	49	14	22	2	11	3	0	297	1	2.42	1.27	1.91	0.23	7.1	3.7	0.77	.181	2.54	5.65