Babe Ruth has the highest on-base percentage * total bases in a month, with 64.44 in July 1924.

Interpreted as:

highest obp*tb by a player in a month

	NAME	OBP*TB	OBP	TB	MONTH	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	XBH	SH	SF	IBB	GIDP	AVG	SLG	OPS
1	Babe Ruth B. Ruth	64.44	.556	116	July 1924	37	131	43	59	9	3	14	40	31	0	16	2		164	26	2				.450	.885	1.441
2	Joe DiMaggio J. DiMaggio	59.93	.504	119	July 1937	29	121	40	52	10	6	15	43	17	1	9	2		139	31	0				.430	.983	1.487
3	Lou Gehrig L. Gehrig	59.37	.582	102	June 1930	28	111	37	55	11	3	10	41	20	3	10	5		137	24	3				.495	.919	1.501
4	Babe Ruth B. Ruth	59.28	.611	97	July 1920	34	100	45	44	10	2	13	33	43	1	19	5		147	25	3				.440	.970	1.581
5	Ty Cobb T. Cobb	57.89	.562	103	July 1912	30	127	33	67	11	8	3	21	9	1		15		137	22	0				.528	.811	1.373
6	Tristram Speaker T. Speaker	56.32	.536	105	July 1923	33	137	35	67	18	4	4	37	14	0	0	1		155	26	4				.489	.766	1.303
7	Babe Ruth B. Ruth	55.69	.580	96	June 1920	29	100	38	45	7	4	12	37	30	1	17	6		131	23	0				.450	.960	1.540
8	Rogers Hornsby R. Hornsby	55.58	.540	103	July 1923	31	125	31	61	13	4	7	39	14	0	12	0		142	24	3				.488	.824	1.364
9	Babe Ruth B. Ruth	54.86	.571	96	July 1923	31	111	36	51	9	3	10	27	29	0	18	1		140	22	0				.459	.865	1.436
10	Rogers Hornsby R. Hornsby	54.17	.570	95	August 1924	29	106	29	54	13	2	8	22	15	0	7	0		127	23	6				.509	.896	1.466
11	Babe Ruth B. Ruth	54.14	.547	99	May 1928	29	99	32	41	5	4	15	37	28	1	20	0		129	24	1				.414	1.000	1.547
12	Richard Hidalgo R. Hidalgo	53.33	.533	100	September 2000	28	103	36	49	14	2	11	31	11	4	9	5	0	120	27	0	2	2	0	.476	.971	1.504
13	Charlie Gehringer C. Gehringer	53.28	.586	91	August 1937	32	122	38	59	11	0	7	38	30	0	2	6		152	18	0				.484	.746	1.331
14	Lou Gehrig L. Gehrig	53.06	.536	99	June 1936	26	106	35	48	11	2	12	31	19	0	4	1		125	25	0				.453	.934	1.470
15	Chuck Klein C. Klein	52.96	.477	111	July 1930	33	141	44	61	18	1	10	38	11	1	13	1		154	29	1				.433	.787	1.264
16	Babe Ruth B. Ruth	52.61	.578	91	August 1921	28	98	38	44	13	2	10	34	30	0	13	2		129	25	1				.449	.929	1.507
17	Babe Ruth B. Ruth	51.91	.558	93	June 1921	29	95	34	38	10	3	13	28	34	0	18	3		129	26	0				.400	.979	1.537
18	Chuck Klein C. Klein	51.9	.504	103	July 1929	28	116	24	52	7	1	14	40	13	0	11	1		129	22	0				.448	.888	1.392
19	Mickey Mantle M. Mantle	51.73	.507	102	May 1956	31	116	35	48	6	0	16	35	23	0	15	4	0	140	22	0	1	2	0	.414	.879	1.386
20	Rogers Hornsby R. Hornsby	51.39	.584	88	June 1925	28	100	31	48	9	2	9	31	25	0	6	2		126	20	1				.480	.880	1.464
21	Joe Jackson J. Jackson	50.51	.568	89	June 1912	29	102	28	54	16	8	1		7	2		4		113	25	2				.529	.873	1.440
22	George Sisler G. Sisler	50.3	.578	87	June 1920	29	114	33	60	9	3	4	26	13	1	2	9		131	16	3				.526	.763	1.341
23	Lou Gehrig L. Gehrig	49.99	.459	109	July 1930	35	136	37	51	12	5	12	50	21	0	17	1		161	29	4				.375	.801	1.260
24	Ty Cobb T. Cobb	49.89	.536	93	July 1922	32	137	26	67	18	1	2	25	12	2	5	5		154	21	3				.489	.679	1.215
25	Babe Ruth B. Ruth	49.81	.560	89	June 1930	28	97	43	38	6	0	15	35	37	0	12	2		137	21	3				.392	.918	1.477