The Chicago Cubs have their best record in a month 20 times, with a record of 2-0.

	TEAM	REC	MONTH	W%	G	W	L	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Cubs	2-0	May 2025	1.000	2	2	0	76	18	23	2	0	7	18	8	0	10	0	0	84	46	9	0	0	0	1	.303	.369	.605	.974
2	Cubs	1-0	March 2023	1.000	1	1	0	30	4	6	0	0	0	3	4	1	5	0	0	35	6	0	0	0	0	1	.200	.314	.200	.514
3	Cubs	4-0	October 2015	1.000	4	4	0	135	15	33	8	1	2	14	16	2	39	3	1	154	49	11	1	0	1	6	.244	.333	.363	.696
4	Cubs	1-0	October 2006	1.000	1	1	0	33	8	9	1	1	1	7	3	0	4	2	1	36	15	3	0	0	0	0	.273	.333	.455	.788
5	Cubs	1-0	March 2003	1.000	1	1	0	40	15	16	3	1	2	15	12	0	6	1	1	53	27	6	0	1	0	2	.400	.528	.675	1.203
6	Cubs	1-0	October 2000	1.000	1	1	0	39	10	12	4	0	0	9	10	1	12	1	0	51	16	4	0	1	2	0	.308	.451	.410	.861
7	Cubs	1-0	October 1989	1.000	1	1	0	36	5	9	1	1	1	5	6	0	4	1	0	42	15	3	0	0	1	0	.250	.357	.417	.774
8	Cubs	2-0	October 1988	1.000	2	2	0	74	17	28	3	0	4	16	7	0	13	1	0	82	43	7	0	1	0	1	.378	.427	.581	1.008
9	Cubs	2-0	October 1986	1.000	2	2	0	69	16	22	9	0	3	14	6	0	12	1	0	76	40	12	0	1	0	1	.319	.368	.580	.948
10	Cubs	3-0	October 1976	1.000	3	3	0	93	14	31	4	2	1	13	10	0	10	2	1	108	42	7	2	3	1	3	.333	.387	.452	.838
11	Cubs	1-0	October 1970	1.000	1	1	0	35	4	8	1	0	1	4	1	0	2	0	0	36	12	2	0	0	1	0	.229	.250	.343	.593
12	Cubs	1-0	October 1950	1.000	1	1	0	42	3	12	2	0	2	3	3	0	2	0	0	46	20	4	1		0	2	.286	.333	.476	.810
13	Cubs	1-0	October 1939	1.000	1	1	0	29	2	6	0	0	0	2	3	0	6	0	0	32	6	0	0			3	.207	.281	.207	.488
14	Cubs	1-0	October 1933	1.000	1	1	0	31	7	5	0	1	0	6	5	0	4	2	0	36	7	1	0			0	.161	.278	.226	.504
15	Cubs	1-0	October 1916	1.000	1	1	0	31	6	11	4	0	3	5	3	0	2	1		35	24	7	1				.355	.412	.774	1.186
16	Cubs	2-0	October 1913	1.000	2	2	0	60	8	18	3	0	0	7	10	0	5	4		72	21	3	2				.300	.400	.350	.750
17	Cubs	5-0	October 1908	1.000	5	5	0	165	36	54	11	2	1	34	18	0	23	6		200	72	14	17				.327	.393	.436	.830
18	Cubs	3-0	October 1906	1.000	4	3	0	131	15	29	4	1	1		8	0		12		142	38	6	3				.221	.266	.290	.556
19	Cubs	7-0	October 1905	1.000	8	7	0	272	42	66	11	4	1		23	3	29	14		311	88	16	13				.243	.309	.324	.632
20	Orphans	2-0	October 1902	1.000	3	2	0	82	21	26	4	2	0	18	14	0	-26	8		104	34	6	8				.317	.417	.415	.831
21	Cubs	26-3	August 1906	.897	29	26	3	883	140	244	29	10	2		92	8		38		1,039	299	41	56				.276	.350	.339	.689
22	Cubs	23-3	September 1935	.885	26	23	3	902	156	271	46	11	10	138	77	8	74	12		1,017	369	67	30				.300	.361	.409	.770
23	Cubs	13-2	April 1907	.867	15	13	2	455	51	101	13	7	1	35	68	9	47	28		560	131	21	28				.222	.335	.288	.622
24	Cubs	10-2	April 1934	.833	12	10	2	445	70	129	24	4	13	67	31	4	54	5		489	200	41	9				.290	.342	.449	.791
25	Cubs	26-6	July 1945	.813	32	26	6	1,115	183	341	58	11	11	166	128	6	87	14		1,278	454	80	29			16	.306	.380	.407	.787