The Boston Red Sox had their most wins in a month in July 1948, with 25 wins.

	TEAM	W	MONTH	L	W%	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Red Sox	25	July 1948	9	.735	34	1,127	212	312	68	9	27	205	183	8	115	8		1,332	479	104	14			31	.277	.382	.425	.807
2	Red Sox	24	August 1950	6	.800	30	1,086	221	347	63	18	25	207	143	2	100	7		1,245	521	106	14			28	.320	.400	.480	.879
3	Red Sox	23	August 1995	7	.767	30	1,034	179	295	64	10	37	170	128	10	178	21	9	1,194	490	111	12	10	9	29	.285	.366	.474	.840
4	Red Sox	23	May 1978	7	.767	30	998	146	279	49	9	37	137	117	5	138	11	12	1,143	457	95	8	15	5	33	.280	.353	.458	.811
5	Red Sox	23	August 1949	8	.742	31	1,093	196	319	60	8	27	181	170	1	102	13		1,282	476	95	18			32	.292	.388	.435	.823
6	Red Sox	23	August 1942	9	.719	32	1,110	167	317	46	14	19	155	129	2	104	15		1,271	448	79	30			17	.286	.361	.404	.765
7	Red Sox	23	July 1939	10	.697	33	1,184	201	360	55	12	36	182	122	4	118	10		1,343	547	103	33			37	.304	.371	.462	.833
8	Red Sox	23	July 1910	10	.697	33	1,078	147	303	49	18	10		102	10		47		1,235	418	77	45				.281	.349	.388	.736
9	Red Sox	22	August 1996	9	.710	31	1,031	156	279	57	4	39	147	109	14	178	20	9	1,173	461	100	6	13	11	27	.271	.344	.447	.792
10	Red Sox	22	September 1977	8	.733	30	1,041	166	299	48	14	31	159	96	7	164	6	6	1,159	468	93	6	9	4	20	.287	.349	.450	.798
11	Red Sox	22	July 1975	11	.667	33	1,131	176	324	73	11	28	169	122	7	152	10	11	1,287	503	112	17	10	19	27	.286	.357	.445	.801
12	Red Sox	22	July 1915	10	.688	33	1,070	168	315	47	14	3		113	14	82	32		1,258	399	64	61				.294	.369	.373	.742
13	Red Sox	21	August 2004	7	.750	28	960	176	289	69	5	36	169	109	12	181	13	6	1,096	476	110	3	12	8	25	.301	.375	.496	.871
14	Red Sox	21	July 1988	9	.700	30	1,041	169	320	65	12	28	158	103	1	122	9	4	1,176	493	105	15	16	10	21	.307	.365	.474	.839
15	Red Sox	21	May 1986	7	.750	28	971	158	280	67	3	17	143	119	15	128	9	9	1,121	404	87	5	11	8	20	.288	.371	.416	.787
16	Red Sox	21	June 1961	13	.618	35	1,191	194	302	46	14	23	186	174	8	178	10	6	1,405	445	83	19	13	8	23	.254	.349	.374	.723
17	Red Sox	21	July 1955	8	.724	29	1,005	147	272	37	8	23	136	144	4	147	13	5	1,170	394	68	10	7	8	21	.271	.362	.392	.754
18	Red Sox	21	August 1946	11	.656	32	1,077	157	283	56	8	19	142	129	3	108	11		1,232	412	83	23			32	.263	.343	.383	.726
19	Red Sox	21	May 1946	6	.778	27	937	151	251	42	7	21	139	138	1	122	8		1,095	370	70	19			16	.268	.362	.395	.757
20	Red Sox	21	August 1915	6	.778	27	854	105	216	34	17	0		72	8	78	12		985	284	51	51				.253	.317	.333	.649
21	Red Sox	21	September 1914	9	.700	32	1,014	145	281	44	29	7		112	16	133	39		1,173	404	80	31				.277	.358	.398	.757
22	Red Sox	21	July 1912	9	.700	30	1,000	141	275	45	19	7	120	85	5		30		1,136	379	71	46				.275	.335	.379	.714
23	Red Sox	21	June 1912	8	.724	29	1,018	166	304	52	23	8	139	78	10		42		1,151	426	83	45				.299	.354	.418	.773
24	Red Sox	20	June 2022	6	.769	26	894	129	239	60	2	24	123	94	17	195	19	3	1,013	375	86	1	7	9	19	.267	.346	.419	.765
25	Red Sox	20	July 2011	6	.769	26	945	171	282	61	5	40	162	110	8	189	21	6	1,074	473	106	2	9	9	22	.298	.373	.501	.874