Jimmie Foxx had the highest slugging percentage in the AL in 1938, with a slugging percentage of .704.

Interpreted as:

best slg with a minimum of 3.1 PA per team game by a player in the al in 1938

	NAME	SLG	SEASON	TM	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	Jimmie Foxx J. Foxx	.704	1938	BSA	149	565	139	197	33	9	50	175	119	0	76	5	4	685	398	92	1	.349	.462	1.166	178	91.7	.508	173	74.2
2	Hank Greenberg H. Greenberg	.683	1938	DET	155	556	143	175	23	4	58	147	119	3	92	7	5	681	380	85	3	.315	.438	1.122	166	80.3	.489	162	62
3	Jeff Heath J. Heath	.602	1938	CLE	126	502	104	172	31	18	21	112	33	0	55	3	1	538	302	70	3	.343	.383	.985	108	40.3	.436	137	29.3
4	Joe DiMaggio J. DiMaggio	.581	1938	NYY	145	599	129	194	32	13	32	140	59	2	21	6	1	660	348	77	0	.324	.386	.967	129	46.5	.430	136	35.4
5	Rudy York R. York	.579	1938	DET	135	463	86	138	27	2	33	126	92	2	74	1	2	557	268	62	0	.298	.417	.995	116	45.8	.445	138	30.8
6	Bill Dickey B. Dickey	.568	1938	NYY	132	454	84	142	27	4	27	115	75	2	22	3	0	532	258	58	1	.313	.412	.981	108	41.5	.440	142	32.5
7	Harlond Clift H. Clift	.554	1938	SLA	149	534	119	155	25	7	34	118	118	5	67	10	5	658	296	66	1	.290	.423	.977	134	51.6	.440	134	33.1
8	Bob Johnson B. Johnson	.552	1938	PHA	152	563	114	176	27	9	30	113	87	2	73	9	8	652	311	66	0	.313	.406	.959	128	46.3	.431	133	31.3
9	Hal Trosky Sr. H. Trosky Sr.	.542	1938	CLE	150	554	106	185	40	9	19	110	67	1	40	5	1	626	300	68	4	.334	.407	.948	121	42.9	.428	133	30
10	Joe Cronin J. Cronin	.536	1938	BSA	143	530	98	172	51	5	17	94	91	5	60	7	5	637	284	73	11	.325	.428	.964	129	48.6	.437	134	32.3
11	Earl Averill E. Averill	.535	1938	CLE	134	482	101	159	27	15	14	93	81	3	48	5	2	567	258	56	1	.330	.429	.965	114	43.2	.437	138	31.5
12	Lou Gehrig L. Gehrig	.523	1938	NYY	157	576	115	170	32	6	29	114	107	5	75	6	1	689	301	67	1	.295	.410	.932	131	44.6	.423	133	33
13	Al Simmons A. Simmons	.511	1938	WSH	125	470	79	142	23	6	21	95	38	2	40	2	1	512	240	50	2	.302	.357	.868	84	19.5	.390	115	11.5
14	Joe Gordon J. Gordon	.502	1938	NYY	127	458	83	117	24	7	25	97	56	3	72	11	3	520	230	56	3	.255	.340	.843	80	14.6	.378	108	5.9
15	Ken Keltner K. Keltner	.497	1938	CLE	149	576	86	159	31	9	26	113	33	3	75	4	3	619	286	66	7	.276	.319	.815	88	10.3	.364	97	-2.4
16	Ben Chapman B. Chapman	.494	1938	BSA	127	480	92	163	40	8	6	80	65	0	33	13	6	553	237	54	8	.340	.418	.912	103	33.5	.418	124	19.3
17	Gee Walker G. Walker	.493	1938	CWS	120	442	69	135	23	6	16	87	38	0	32	9	4	481	218	45	1	.305	.360	.854	77	16.6	.386	109	6.1
18	Tommy Henrich T. Henrich	.490	1938	NYY	131	471	109	127	24	7	22	91	92	2	32	6	2	575	231	53	10	.270	.391	.882	100	27.5	.402	121	17.8
19	Charlie Gehringer C. Gehringer	.486	1938	DET	152	568	133	174	32	5	20	107	113	4	21	14	1	688	276	57	3	.306	.425	.911	129	42.7	.420	124	24.3
20	George McQuinn G. McQuinn	.477	1938	SLA	148	602	100	195	42	7	12	82	58	1	49	4	5	674	287	61	13	.324	.384	.861	112	27.4	.394	109	8.5
21	Zeke Bonura Z. Bonura	.472	1938	WSH	137	540	72	156	27	3	22	114	44	3	29	2	2	589	255	52	2	.289	.346	.818	87	13.2	.371	105	4.1
22	Buddy Myer B. Myer	.465	1938	WSH	127	437	79	147	22	8	6	71	93	1	32	9	5	534	203	36	3	.336	.454	.918	104	37.1	.429	137	28.8
23	Bruce Campbell B. Campbell	.460	1938	CLE	133	511	90	148	27	12	12	72	53	3	57	11	7	575	235	51	8	.290	.360	.820	86	14.3	.374	103	2.4
24	Joe Vosmik J. Vosmik	.446	1938	BSA	146	621	121	201	37	6	9	86	59	2	26	0	3	689	277	52	7	.324	.384	.830	109	22.2	.383	105	4.6
25	Red Rolfe R. Rolfe	.441	1938	NYY	151	631	132	196	36	8	10	80	74	3	44	13	1	714	278	54	6	.311	.386	.826	112	22.6	.382	110	10.6