Since 1921, Babe Ruth has the highest slugging percentage, with a slugging percentage of .699.

Interpreted as:

highest slugging percentage with a minimum of 1.55 PA per team game by a player after 1920

	NAME	SLG	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	OPS	WRC	WRAA	WOBA	WRC+	BRAA
1	Babe Ruth B. Ruth	.699	1,970	6,831	1,814	2,359	388	97	611	1,855	1,722	32	1,066	96		8,674	4,774	1,096	89				.345	.479	1.178	2274	1,186.8	.514	197	1,137.7
2	Ted Williams T. Williams	.634	2,292	7,706	1,798	2,654	525	71	521	1,839	2,021	39	709	24	4	9,791	4,884	1,117	5	20	86	197	.344	.482	1.116	2349	1,219.7	.493	188	1,067
3	Lou Gehrig L. Gehrig	.632	2,164	8,001	1,888	2,721	534	163	493	1,995	1,508	45	790	102		9,660	5,060	1,190	106			2	.340	.447	1.080	2265	1,046.8	.477	173	980
4	Rogers Hornsby R. Hornsby	.627	1,555	5,581	1,210	2,092	420	97	265	1,224	803	27	442	64		6,572	3,501	782	161				.375	.456	1.083	1552	729.7	.484	180	693.9
5	Aaron Judge A. Judge	.613	1,056	3,800	795	1,118	190	7	336	767	736	36	1,273	58	19	4,599	2,330	533	0	27	82	107	.294	.411	1.024	964	414.9	.425	178	418.9
6	Jimmie Foxx J. Foxx	.609	2,317	8,134	1,751	2,646	458	125	534	1,922	1,452	13	1,311	87		9,670	4,956	1,117	71			69	.325	.428	1.038	2135	934.1	.460	158	780.8
7	Barry Bonds B. Bonds	.607	2,986	9,847	2,227	2,935	601	77	762	1,996	2,558	106	1,539	514	141	12,606	5,976	1,440	4	91	688	165	.298	.444	1.051	2663	1,143.3	.435	172	1,142
8	Hank Greenberg H. Greenberg	.605	1,394	5,193	1,046	1,628	379	71	331	1,274	852	16	844	58		6,096	3,142	781	35			66	.313	.412	1.017	1287	556.1	.453	154	446.7
9	Mark McGwire M. McGwire	.588	1,874	6,187	1,167	1,626	252	6	583	1,414	1,317	75	1,596	12	8	7,660	3,639	841	3	78	150	147	.263	.394	.982	1480	564.9	.415	157	558.2
10	Manny Ramirez M. Ramirez	.585	2,302	8,244	1,544	2,574	547	20	555	1,831	1,329	109	1,813	38	33	9,774	4,826	1,122	2	90	216	243	.312	.411	.996	1931	719.5	.418	153	658.7
11	Shohei Ohtani S. Ohtani	.579	923	3,371	628	952	176	40	248	606	472	22	990	156	41	3,885	1,952	464	0	20	76	43	.282	.372	.951	720	256.8	.395	154	251.9
12	Joe DiMaggio J. DiMaggio	.579	1,736	6,821	1,390	2,214	389	131	361	1,537	790	46	369	30	0	7,671	3,948	881	14			130	.325	.398	.977	1517	604.1	.439	152	528.8
13	Mike Trout M. Trout	.579	1,554	5,641	1,140	1,677	313	55	388	977	995	101	1,523	214	38	6,794	3,264	756	0	57	122	70	.297	.408	.987	1333	544.2	.414	168	546.6
14	Yordan Alvarez Y. Alvarez	.573	658	2,390	419	704	152	6	167	484	334	40	554	9	1	2,789	1,369	325	0	25	40	59	.295	.387	.959	532	199	.401	162	205.1
15	Harry Heilmann H. Heilmann	.572	1,429	5,232	978	1,917	414	102	152	1,139	640	24	344	69		6,083	2,991	668	187				.366	.438	1.009	1297	529	.456	156	465.3
16	Reb Russell R. Russell	.568	154	511	100	165	32	15	21	133	34	10	39	7		568	290	68	13				.323	.377	.944	106	35.1	.423	140	30.5
17	Larry Walker L. Walker	.565	1,988	6,907	1,355	2,160	471	62	383	1,311	913	138	1,231	230	76	8,030	3,904	916	7	65	117	153	.313	.400	.965	1532	556.6	.412	140	406.2
18	Albert Belle A. Belle	.564	1,539	5,853	974	1,726	389	21	381	1,239	683	55	961	88	41	6,673	3,300	791	4	78	91	193	.295	.369	.933	1184	366.5	.396	139	338.6
19	Johnny Mize J. Mize	.562	1,884	6,443	1,118	2,011	367	83	359	1,337	856	52	524	28	0	7,371	3,621	809	20			76	.312	.397	.959	1421	546.3	.433	157	508.1
20	Juan Gonzalez J. Gonzalez	.561	1,689	6,556	1,061	1,936	388	25	434	1,404	457	62	1,273	26	19	7,155	3,676	847	2	78	74	184	.295	.343	.904	1190	314.6	.383	129	264.9
21	Stan Musial S. Musial	.559	3,026	10,972	1,949	3,630	725	177	475	1,951	1,599	53	696	78	31	12,712	6,134	1,377	35	53	127	243	.331	.417	.976	2474	1,032.5	.435	158	896.7
22	Willie Mays W. Mays	.557	2,992	10,881	2,062	3,283	523	140	660	1,903	1,464	44	1,526	338	103	12,493	6,066	1,323	13	91	192	251	.302	.384	.941	2266	894.8	.409	154	802.7
23	Mickey Mantle M. Mantle	.557	2,401	8,102	1,676	2,415	344	72	536	1,509	1,733	13	1,710	153	38	9,909	4,511	952	14	47	126	113	.298	.421	.977	1941	840	.428	170	821.8
24	Ken Williams K. Williams	.556	1,108	3,867	715	1,268	231	55	180	791	481	20	211	124		4,484	2,149	466	116				.328	.405	.961	869	311	.434	140	243.8
25	Frank Thomas F. Thomas	.555	2,322	8,199	1,494	2,468	495	12	521	1,704	1,667	87	1,397	32	23	10,074	4,550	1,028	0	121	168	226	.301	.419	.974	1954	721.1	.416	154	692