Between the 1920 and 1929 seasons, Babe Ruth had the best slugging percentage, with a slugging percentage of .740.

Interpreted as:

best slugging% with a minimum of 1.55 PA per team game by a player in the 1920s

	NAME	SLG	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	AVG	OBP	OPS	WRC	WRAA	WOBA	WRC+	BRAA
1	Babe Ruth B. Ruth	.740	1,399	4,884	1,365	1,734	314	82	467	1,338	1,240	27	795	88		6,224	3,613	863	73	.355	.488	1.228	1701	932.6	.535	206	884.9
2	Rogers Hornsby R. Hornsby	.637	1,430	5,451	1,195	2,085	405	115	250	1,153	753	24	431	74		6,389	3,470	770	161	.382	.460	1.096	1531	739.3	.490	186	714.6
3	Chuck Klein C. Klein	.634	213	869	167	310	59	10	54	179	68	1	83	5		954	551	123	16	.357	.404	1.038	207	83.7	.456	145	61.3
4	Lou Gehrig L. Gehrig	.622	767	2,746	631	919	206	72	146	635	480	15	351	30		3,321	1,707	424	80	.335	.436	1.058	743	327.2	.470	170	313.1
5	Joe Jackson J. Jackson	.589	146	570	105	218	42	20	12	121	56	7	14	9	12	649	336	74	16	.382	.444	1.033	141	67.4	.474	167	56.5
6	Dale Alexander D. Alexander	.580	155	626	110	215	43	15	25	137	56	0	63	5	9	700	363	83	18	.343	.397	.977	139	46.4	.431	143	40.9
7	Jimmie Foxx J. Foxx	.579	364	1,088	241	372	61	25	49	222	178	4	131	15		1,301	630	135	31	.342	.436	1.015	279	113.6	.454	160	104.1
8	Al Simmons A. Simmons	.570	820	3,282	559	1,169	237	60	115	713	206	9	248	49		3,578	1,871	412	81	.356	.396	.966	697	247.5	.433	142	204.3
9	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
10	Harry Heilmann H. Heilmann	.558	1,417	5,285	962	1,924	397	101	142	1,131	615	25	324	70		6,115	2,949	640	190	.364	.433	.991	1266	508.8	.450	153	441
11	Hack Wilson H. Wilson	.557	755	2,747	530	864	154	50	137	604	360	18	388	39		3,202	1,529	341	77	.315	.397	.954	611	211.3	.429	146	194.9
12	Chick Hafey C. Hafey	.550	570	2,057	340	656	168	26	85	416	146	12	209	33		2,268	1,131	279	53	.319	.367	.917	399	113.6	.410	130	92.3
13	Mel Ott M. Ott	.549	391	1,203	237	388	72	9	61	251	179	8	92	12		1,414	661	142	24	.323	.414	.963	279	99.1	.433	143	87.1
14	Jim Bottomley J. Bottomley	.547	1,062	4,134	711	1,354	261	104	146	885	406	24	337	40		4,690	2,261	511	126	.328	.391	.938	869	282.6	.422	140	248.9
15	Ken Williams K. Williams	.547	1,249	4,388	805	1,428	265	68	190	863	522	24	237	142		5,076	2,399	523	142	.325	.400	.947	961	335.4	.429	137	256.2
16	Johnny Frederick J. Frederick	.545	148	628	127	206	52	6	24	75	39	5	34	6		682	342	82	10	.328	.372	.917	121	30.8	.406	122	21.6
17	Paul Waner P. Waner	.540	602	2,357	488	840	170	74	38	396	292	15	73	37		2,727	1,272	282	63	.356	.431	.970	546	206.5	.441	149	175.1
18	Happy Felsch H. Felsch	.540	142	556	88	188	40	15	14	115	37	4	25	8	13	613	300	69	16	.338	.384	.923	111	40.9	.424	138	30.6
19	Earl Averill E. Averill	.538	152	597	110	198	43	13	18	96	63	3	53	13	14	680	321	74	17	.332	.398	.936	127	37.3	.418	135	32
20	Tristram Speaker T. Speaker	.534	1,170	4,226	830	1,496	397	74	72	726	636	26	104	58		5,034	2,257	543	146	.354	.441	.976	1023	405.6	.447	151	343.2
21	Babe Herman B. Herman	.532	547	1,963	298	652	140	39	58	358	176	4	175	34		2,199	1,044	237	56	.332	.388	.920	396	122.2	.415	136	108.9
22	Cy Williams C. Williams	.521	1,239	4,274	721	1,327	200	47	202	715	490	43	401	58		4,883	2,227	449	76	.310	.387	.908	864	264.4	.414	129	179
23	Don Hurst D. Hurst	.518	261	985	173	292	52	8	50	189	148	4	76	13		1,167	510	110	30	.296	.391	.908	207	57.6	.409	119	31
24	Del Bissonette D. Bissonette	.515	271	1,018	158	309	58	23	37	181	116	5	133	7		1,153	524	118	14	.304	.378	.892	195	49.9	.402	126	38.8
25	Goose Goslin G. Goslin	.511	1,144	4,346	717	1,436	240	110	108	822	419	39	281	109		4,932	2,220	458	128	.330	.394	.905	871	254.3	.412	134	224.9