Alvin Dark has the highest career batting average with 50+ at-bats on June 15, with an average of .442.

Interpreted as:

most ba by a player on june 15, minimum 50 ab

	NAME	AVG	AB	G	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	OBP	SLG	OPS
1	Alvin Dark A. Dark	.442	52	12	7	23	3	1	0	7	1	0	5	1	0	53	28	4	0	0	0	0	.453	.538	.991
2	Tristram Speaker T. Speaker	.407	54	14	14	22	8	0	0	11	6	0	0	3		61	30	8	1				.467	.556	1.022
3	Miguel Cabrera M. Cabrera	.397	63	17	15	25	10	0	3	11	9	1	11	0	0	73	44	13	0	0	4	3	.479	.698	1.178
4	Ted Williams T. Williams	.396	53	17	12	21	3	0	2	6	15	1	5	0	0	69	30	5	0	0	0	2	.536	.566	1.102
5	Sam Rice S. Rice	.396	53	13	10	21	2	0	2	12	6	0	0	2		59	29	4	0				.458	.547	1.005
6	Jimmie Foxx J. Foxx	.393	56	16	16	22	6	0	4	18	6	0	9	1		64	40	10	2			1	.452	.714	1.166
7	Nellie Fox N. Fox	.391	69	17	15	27	2	3	2	9	3	1	1	1	0	76	41	7	3	0	0	2	.425	.594	1.019
8	George Brett G. Brett	.381	63	16	7	24	5	0	0	8	3	1	7	1	0	69	29	5	0	2	1	1	.406	.460	.866
9	Reggie Jackson R. Jackson	.377	53	15	14	20	4	1	4	14	6	1	9	5	0	60	38	9	0	0	0	1	.450	.717	1.167
10	Ty Cobb T. Cobb	.362	58	17	11	21	7	0	0	4	11	0	6	5		70	28	7	1				.464	.483	.947
11	Mickey Vernon M. Vernon	.356	59	17	7	21	5	1	2	10	3	0	7	0	1	65	34	8	2	1	0	3	.381	.576	.957
12	Lloyd Waner L. Waner	.353	51	11	5	18	3	1	0	4	4	0	1	0		56	23	4	1			0	.400	.451	.851
13	Stan Musial S. Musial	.351	57	15	13	20	6	0	1	7	5	1	1	0	0	63	29	7	0	0	0	3	.413	.509	.921
14	Stan Hack S. Hack	.346	52	12	9	18	5	1	0	3	4	1	3	0		57	25	6	0			0	.404	.481	.884
15	Frank White F. White	.345	55	14	6	19	2	0	2	9	1	0	10	2	0	57	27	4	1	0	1	1	.357	.491	.848
16	Bernie Williams B. Williams	.340	50	13	10	17	5	1	2	6	8	0	8	3	0	58	30	8	0	0	1	1	.431	.600	1.031
17	Barry Bonds B. Bonds	.340	50	17	9	17	3	0	5	8	14	0	5	0	2	64	35	8	0	0	4	2	.484	.700	1.184
18	Julio Franco J. Franco	.339	56	16	7	19	2	1	1	4	7	0	5	1	2	63	26	4	0	0	0	0	.413	.464	.877
19	Moises Alou M. Alou	.339	59	15	14	20	4	0	3	16	7	0	8	2	0	68	33	7	0	2	1	0	.397	.559	.956
20	Roberto Clemente R. Clemente	.339	59	14	14	20	2	0	1	14	2	1	9	0	0	63	25	3	0	1	0	1	.365	.424	.789
21	Ichiro Suzuki I. Suzuki	.338	65	15	9	22	4	0	1	3	3	0	6	10	2	68	29	5	0	0	1	0	.368	.446	.814
22	Craig Biggio C. Biggio	.338	80	18	11	27	8	0	3	10	3	0	17	1	0	85	44	11	2	0	0	1	.361	.550	.911
23	Carlos Beltran C. Beltran	.333	57	15	11	19	2	1	6	9	5	0	13	3	1	63	41	9	0	1	0	2	.381	.719	1.100
24	Ivan Rodriguez I. Rodriguez	.333	54	12	12	18	5	0	2	13	1	0	7	0	0	56	29	7	0	1	0	0	.339	.537	.876
25	Frank Robinson F. Robinson	.333	66	17	14	22	2	1	2	9	10	0	9	0	0	77	32	5	0	1	1	5	.416	.485	.900