Rickey Henderson has stolen the most bases in a month, with 33 steals in July 1983.

Interpreted as:

MLB most stolen bases by a player in a month

	NAME	SB	MONTH	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Rickey Henderson R. Henderson	33	July 1983	29	113	27	37	5	3	2	8	21	1	15	1	135	54	10	0	0	5	4	.327	.437	.478	.915
2	Rickey Henderson R. Henderson	31	September 1980	27	93	23	27	3	0	0	7	29	1	11	7	126	30	3	0	3	2	2	.290	.452	.323	.775
3	Lou Brock L. Brock	29	August 1974	30	129	15	42	2	2	0	8	11	0	19	12	142	48	4	2	0	2	0	.326	.379	.372	.751
4	Ty Cobb T. Cobb	28	June 1915	24	88	27	32	6	3	1	12	19	1	5		110	47	10	2				.364	.481	.534	1.016
5	Rickey Henderson R. Henderson	27	August 1983	24	82	16	32	3	1	1	9	14	0	8	7	97	40	5	1	0	0	3	.390	.479	.488	.967
6	Rickey Henderson R. Henderson	27	May 1982	28	102	26	31	3	2	3	16	27	0	15	5	131	47	8	0	2	0	0	.304	.443	.461	.904
7	Maury Wills M. Wills	27	September 1962	27	106	18	39	3	2	0	5	11	0	10	4	118	46	5	1	0	0	1	.368	.427	.434	.861
8	Vince Coleman V. Coleman	26	August 1987	28	121	21	37	6	2	1	7	9	0	19	4	132	50	9	1	1	0	1	.306	.351	.413	.764
9	Rickey Henderson R. Henderson	26	July 1982	25	95	21	32	3	2	2	6	19	0	16	11	114	45	7	0	0	0	0	.337	.447	.474	.921
10	Eric Davis E. Davis	25	July 1986	24	84	23	32	9	0	6	16	14	0	23	1	99	59	15	0	1	3	1	.381	.465	.702	1.167
11	Vince Coleman V. Coleman	25	June 1986	26	97	12	21	1	2	0	3	11	1	16	3	110	26	3	1	0	0	2	.216	.303	.268	.571
12	Maury Wills M. Wills	25	July 1965	28	122	23	44	3	3	0	8	6	0	8	6	131	53	6	3	0	1	3	.361	.391	.434	.825
13	Vince Coleman V. Coleman	24	June 1990	27	118	15	35	8	1	1	8	6	0	29	4	126	48	10	2	0	0	1	.297	.331	.407	.737
14	Rickey Henderson R. Henderson	24	August 1982	26	95	20	20	2	0	0	6	18	0	18	8	113	22	2	0	0	0	2	.211	.336	.232	.568
15	Rickey Henderson R. Henderson	24	June 1982	28	107	20	29	8	0	2	11	14	2	18	8	123	43	10	0	0	0	1	.271	.366	.402	.768
16	Tim Raines T. Raines	24	May 1981	28	104	19	32	5	2	3	12	15	0	14	4	121	50	10	0	2	4	2	.308	.388	.481	.869
17	Lou Brock L. Brock	24	September 1974	27	117	23	31	2	2	0	10	14	2	20	8	134	37	4	0	1	3	1	.265	.351	.316	.667
18	Bob Bescher B. Bescher	24	September 1911	36	131	21	32	5	2	0		26	2	16		162	41	7	3				.244	.377	.313	.690
19	Jose Reyes J. Reyes	23	August 2007	28	125	25	34	4	1	3	8	13	0	10	3	139	49	8	1	0	2	2	.272	.341	.392	.733
20	Roger Cedeno R. Cedeno	23	May 1999	27	93	25	32	4	0	1	5	19	0	23	3	112	39	5	0	0	0	0	.344	.455	.419	.875
21	Tim Raines T. Raines	23	August 1984	30	117	19	39	8	1	0	6	20	0	9	6	138	49	9	1	0	2	1	.333	.431	.419	.849
22	Tim Raines T. Raines	23	September 1983	29	110	28	37	8	1	3	13	24	0	9	3	134	56	12	0	0	1	3	.336	.455	.509	.964
23	Ron LeFlore R. LeFlore	23	August 1980	28	102	20	26	6	1	2	9	16	0	23	3	118	40	9	0	0	0	0	.255	.356	.392	.748
24	Ron LeFlore R. LeFlore	23	June 1980	29	124	24	39	6	2	2	10	10	0	18	4	135	55	10	1	0	1	1	.315	.366	.444	.809
25	Ron LeFlore R. LeFlore	23	July 1978	28	117	30	43	8	1	0	12	19	2	18	1	139	53	9	0	1	3	2	.368	.460	.453	.913