Babe Ruth has the best slugging percentage when making 122+ plate appearances in a month, with a slugging percentage of 1.000 in May 1928.

Interpreted as:

highest slg by a player in a month with 122+ pa

	NAME	SLG	PA	MONTH	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	OPS
1	Babe Ruth B. Ruth	1.000	129	May 1928	29	99	32	41	5	4	15	37	28	1	20	0		99	24	1				.414	.547	1.547
2	Joe DiMaggio J. DiMaggio	.983	139	July 1937	29	121	40	52	10	6	15	43	17	1	9	2		119	31	0				.430	.504	1.487
3	Hank Greenberg H. Greenberg	.979	122	September 1940	27	96	34	38	7	2	15	38	26	0	13	2		94	24	0			0	.396	.525	1.504
4	Babe Ruth B. Ruth	.979	129	June 1921	29	95	34	38	10	3	13	28	34	0	18	3		93	26	0				.400	.558	1.537
5	Babe Ruth B. Ruth	.970	147	July 1920	34	100	45	44	10	2	13	33	43	1	19	5		97	25	3				.440	.611	1.581
6	Babe Ruth B. Ruth	.960	131	June 1920	29	100	38	45	7	4	12	37	30	1	17	6		96	23	0				.450	.580	1.540
7	Shohei Ohtani S. Ohtani	.952	126	June 2023	27	104	27	41	7	3	15	29	21	0	26	4	1	99	25	0	1	2	2	.394	.492	1.444
8	Sammy Sosa S. Sosa	.936	130	August 2001	29	109	31	42	3	3	17	36	16	3	24	0	1	102	23	0	2	3	0	.385	.469	1.405
9	Lou Gehrig L. Gehrig	.934	125	June 1936	26	106	35	48	11	2	12	31	19	0	4	1		99	25	0				.453	.536	1.470
10	Babe Ruth B. Ruth	.929	129	August 1921	28	98	38	44	13	2	10	34	30	0	13	2		91	25	1				.449	.578	1.507
11	Babe Ruth B. Ruth	.922	126	September 1927	27	103	29	39	3	1	17	43	19	0	15	3		95	21	4				.379	.475	1.398
12	Rudy York R. York	.920	126	August 1937	30	113	27	41	5	2	18	50	13	0	14	1		104	25	0				.363	.429	1.349
13	Lou Gehrig L. Gehrig	.919	137	June 1930	28	111	37	55	11	3	10	41	20	3	10	5		102	24	3				.495	.582	1.501
14	Babe Ruth B. Ruth	.918	137	June 1930	28	97	43	38	6	0	15	35	37	0	12	2		89	21	3				.392	.560	1.477
15	Juan Gonzalez J. Gonzalez	.917	123	July 1996	27	108	22	44	10	0	15	38	14	0	15	0	0	99	25	0	1	7	2	.407	.472	1.388
16	Norm Cash N. Cash	.901	122	June 1961	30	101	25	42	1	3	14	25	19	1	12	1	0	91	18	1	0	6	4	.416	.512	1.413
17	Giancarlo Stanton G. Stanton	.899	127	August 2017	29	109	28	38	6	0	18	37	14	3	31	1	0	98	24	0	1	4	2	.349	.433	1.332
18	Rogers Hornsby R. Hornsby	.896	127	August 1924	29	106	29	54	13	2	8	22	15	0	7	0		95	23	6				.509	.570	1.466
19	Chuck Klein C. Klein	.888	129	July 1929	28	116	24	52	7	1	14	40	13	0	11	1		103	22	0				.448	.504	1.392
20	Frank Robinson F. Robinson	.887	131	July 1961	30	115	31	47	12	2	13	34	12	2	11	6	0	102	27	0	2	3	1	.409	.466	1.353
21	Babe Ruth B. Ruth	.885	164	July 1924	37	131	43	59	9	3	14	40	31	0	16	2		116	26	2				.450	.556	1.441
22	Rogers Hornsby R. Hornsby	.880	126	June 1925	28	100	31	48	9	2	9	31	25	0	6	2		88	20	1				.480	.584	1.464
23	Mickey Mantle M. Mantle	.879	140	May 1956	31	116	35	48	6	0	16	35	23	0	15	4	0	102	22	0	1	2	0	.414	.507	1.386
24	Randy Winn R. Winn	.877	124	September 2005	28	114	25	51	12	2	11	17	7	0	15	2	4	100	25	3	0	1	0	.447	.479	1.357
25	Reggie Jackson R. Jackson	.875	126	June 1969	26	104	28	38	9	1	14	37	17	3	23	2	2	91	24	1	1	3	2	.365	.464	1.339