who has the highest ops in a season in a month with at least 40 ab

Barry Bonds has the best OPS with 40+ at-bats in a month, with an OPS of 1.828 in April 2004.

	NAME	OPS	AB	MONTH	G	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG
1	Barry Bonds B. Bonds	1.828	53	April 2004	23	21	25	5	0	10	22	39	0	6	2	0	92	60	15	0	0	18	2	.472	.696	1.132
2	Barry Bonds B. Bonds	1.653	42	August 2003	15	14	19	3	0	7	12	20	0	4	0	0	62	43	10	0	0	9	1	.452	.629	1.024
3	Barry Bonds B. Bonds	1.615	70	August 2004	27	27	29	6	1	11	27	38	0	7	2	1	109	70	18	0	1	15	0	.414	.615	1.000
4	Bob Bailey B. Bailey	1.593	63	July 1970	24	20	29	7	1	10	28	8	0	12	0	0	72	68	18	0	1	1	0	.460	.514	1.079
5	Willie Mays W. Mays	1.592	43	April 1964	11	18	21	2	1	7	20	3	0	1	2	0	46	46	10	0	0	0	1	.488	.522	1.070
6	Todd Helton T. Helton	1.588	82	May 2000	23	32	42	7	0	11	26	18	0	9	0	0	102	82	18	0	2	5	2	.512	.588	1.000
7	Barry Bonds B. Bonds	1.583	84	May 2001	27	28	31	5	0	17	30	31	2	24	3	1	117	87	22	0	0	5	1	.369	.547	1.036
8	Frank Thomas F. Thomas	1.581	84	May 1994	25	39	38	9	0	12	28	31	1	11	0	0	118	83	21	0	2	3	3	.452	.593	.988
9	Barry Bonds B. Bonds	1.581	76	August 2002	27	24	34	6	0	11	25	37	1	7	1	1	116	73	17	0	2	11	1	.447	.621	.961
10	Babe Ruth B. Ruth	1.581	100	July 1920	34	45	44	10	2	13	33	43	1	19	5		147	97	25	3				.440	.611	.970
11	Barry Bonds B. Bonds	1.581	65	July 2003	23	25	27	5	0	11	21	26	1	10	0	0	93	65	16	0	1	8	0	.415	.581	1.000
12	Barry Bonds B. Bonds	1.565	63	September 2001	21	18	23	4	0	12	20	28	1	10	2	1	92	63	16	0	0	4	1	.365	.565	1.000
13	Frank Robinson F. Robinson	1.561	41	April 1966	12	16	19	4	1	5	10	10	2	7	3	1	53	40	10	0	0	1	1	.463	.585	.976
14	Chipper Jones C. Jones	1.559	62	July 2006	16	19	31	7	1	7	20	11	0	4	0	0	73	61	15	0	0	0	1	.500	.575	.984
15	Babe Ruth B. Ruth	1.547	99	May 1928	29	32	41	5	4	15	37	28	1	20	0		129	99	24	1				.414	.547	1.000
16	Babe Ruth B. Ruth	1.540	100	June 1920	29	38	45	7	4	12	37	30	1	17	6		131	96	23	0				.450	.580	.960
17	Babe Ruth B. Ruth	1.537	95	June 1921	29	34	38	10	3	13	28	34	0	18	3		129	93	26	0				.400	.558	.979
18	Sean Berry S. Berry	1.527	42	August 1998	14	12	22	4	0	5	15	4	1	5	0	0	49	41	9	0	2	0	0	.524	.551	.976
19	Johnny Mize J. Mize	1.520	51	July 1936	18	15	27	6	0	5	11	5	1	2	0		57	48	11	0				.529	.579	.941
20	Don Hurst D. Hurst	1.513	53	September 1930	16	19	25	8	1	5	12	12	0	4	0		65	50	14	0				.472	.569	.943
21	Babe Ruth B. Ruth	1.507	98	August 1921	28	38	44	13	2	10	34	30	0	13	2		129	91	25	1				.449	.578	.929
22	Richard Hidalgo R. Hidalgo	1.504	103	September 2000	28	36	49	14	2	11	31	11	4	9	5	0	120	100	27	0	2	2	0	.476	.533	.971
23	Hank Greenberg H. Greenberg	1.504	96	September 1940	27	34	38	7	2	15	38	26	0	13	2		122	94	24	0			0	.396	.525	.979
24	Lou Gehrig L. Gehrig	1.501	111	June 1930	28	37	55	11	3	10	41	20	3	10	5		137	102	24	3				.495	.582	.919
25	Ken Singleton K. Singleton	1.498	53	April 1981	15	9	25	6	0	7	14	5	0	9	0	0	58	52	13	0	0	1	2	.472	.517	.981