Joe DiMaggio had the best batting average in the AL in 1939, with an average of .381.

Interpreted as:

best avg with a minimum of 3.1 PA per team game by a player in the al in 1939

	NAME	AVG	SEASON	TM	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	GIDP	OBP	SLG	OPS	WRC	WRAA	WOBA	WRC+	BRAA
1	Joe DiMaggio J. DiMaggio	.381	1939	NYY	120	462	108	176	32	6	30	126	52	4	20	3	0	524	310	68	6	11	.448	.671	1.119	129	64	.495	180	58.5
2	Jimmie Foxx J. Foxx	.360	1939	BSA	124	467	130	168	31	10	35	105	89	2	72	4	3	563	324	76	5	17	.464	.694	1.158	144	74.3	.507	181	63.5
3	Bob Johnson B. Johnson	.338	1939	PHA	150	544	115	184	30	9	23	114	99	0	59	15	5	653	301	62	10	12	.440	.553	.993	137	55.7	.449	150	45.6
4	Hal Trosky Sr. H. Trosky Sr.	.335	1939	CLE	122	448	89	150	31	4	25	104	52	1	28	2	3	511	264	60	10	6	.405	.589	.994	105	41.2	.444	150	35.2
5	Charlie Keller C. Keller	.334	1939	NYY	111	398	87	133	21	6	11	83	81	0	49	6	3	490	199	38	11	4	.447	.500	.947	97	36.5	.436	146	31.4
6	Red Rolfe R. Rolfe	.329	1939	NYY	152	648	139	213	46	10	14	80	81	1	41	7	6	731	321	70	1	6	.404	.495	.899	130	39.5	.411	131	31.9
7	Ted Williams T. Williams	.327	1939	BSA	149	565	131	185	44	11	31	145	107	2	64	2	1	677	344	86	3	10	.436	.609	1.045	150	66.1	.464	156	53.1
8	Ken Keltner K. Keltner	.325	1939	CLE	154	587	84	191	35	11	13	97	51	0	41	6	6	648	287	59	10	15	.379	.489	.868	107	26.6	.394	121	19
9	Charlie Gehringer C. Gehringer	.325	1939	DET	118	406	86	132	29	6	16	86	68	1	16	4	3	486	221	51	11	7	.423	.544	.967	97	36.7	.437	138	25.6
10	Eric McNair E. McNair	.324	1939	CWS	129	479	62	155	18	5	7	82	38	1	41	17	9	528	204	30	10	13	.375	.426	.800	77	11.4	.370	105	3.9
11	Mike Kreevich M. Kreevich	.323	1939	CWS	145	541	85	175	30	8	5	77	59	0	40	23	10	622	236	43	22	14	.390	.436	.826	97	19.6	.383	112	10.7
12	Buddy Lewis B. Lewis	.319	1939	WSH	140	536	87	171	23	16	10	75	72	2	27	10	9	629	256	49	19	7	.402	.478	.879	108	30.1	.403	128	24.3
13	Bobby Doerr B. Doerr	.318	1939	BSA	127	525	75	167	28	2	12	73	38	1	32	1	10	574	235	42	10	17	.365	.448	.813	85	13.6	.373	103	2.6
14	George McQuinn G. McQuinn	.316	1939	SLA	154	617	101	195	37	13	20	94	65	2	42	6	5	702	318	70	18	11	.383	.515	.898	122	35.2	.406	121	20.9
15	Luke Appling L. Appling	.314	1939	CWS	148	516	82	162	16	6	0	56	105	0	37	16	9	630	190	22	9	11	.430	.368	.798	99	21.1	.385	114	12.2
16	Hank Greenberg H. Greenberg	.312	1939	DET	138	500	111	156	42	7	33	113	91	2	95	8	3	604	311	82	11	8	.420	.622	1.042	132	56.8	.460	151	43
17	Barney McCosky B. McCosky	.311	1939	DET	147	611	120	190	33	14	4	58	70	2	45	20	4	692	263	51	9	7	.384	.430	.814	104	18.6	.377	103	2.8
18	Doc Cramer D. Cramer	.311	1939	BSA	137	589	110	183	30	6	0	56	36	2	17	3	3	642	225	36	15	16	.352	.382	.734	79	-0.9	.342	85	-13.2
19	Taffy Wright T. Wright	.309	1939	WSH	129	499	77	154	29	11	4	93	38	1	19	1	2	547	217	44	9	7	.359	.435	.794	77	8.9	.364	105	3.9
20	Joe Cronin J. Cronin	.308	1939	BSA	143	520	97	160	33	3	19	107	87	0	48	6	6	627	256	55	20	18	.407	.492	.899	112	34.5	.412	126	22.5
21	Wally Moses W. Moses	.307	1939	PHA	115	437	68	134	28	7	3	33	44	0	23	7	4	486	185	38	5	4	.370	.423	.793	69	9.1	.367	102	1.6
22	George Selkirk G. Selkirk	.306	1939	NYY	128	418	103	128	17	4	21	101	103	8	49	12	5	537	216	42	8	3	.452	.517	.969	110	43.7	.444	151	38.1
23	Bill Dickey B. Dickey	.302	1939	NYY	128	480	98	145	23	3	24	105	77	4	37	5	0	565	246	50	4	9	.403	.513	.915	103	33.2	.416	135	27.3
24	George Case G. Case	.302	1939	WSH	128	530	103	160	20	7	2	35	56	0	36	51	17	593	200	29	7	6	.369	.377	.746	77	3.4	.351	97	-2.1
25	Joe Kuhel J. Kuhel	.300	1939	CWS	139	546	107	164	24	9	15	56	64	2	51	18	5	623	251	48	11	7	.376	.460	.836	97	19.9	.383	113	11