since 1969 who has the highest batting average in postseason with at least 150 at bats

Since 1969, Steve Garvey has the highest batting average in the postseason with 150+ at-bats, with an average of .338.

	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	Steve Garvey S. Garvey	.338	222	55	32	75	8	3	11	31	8	0	32	2	2	232	122	22	2	0	4	4	.361	.550	.910
2	Pablo Sandoval P. Sandoval	.338	157	42	21	53	13	0	6	20	10	3	24	0	0	171	84	19	0	1	3	7	.386	.535	.921
3	George Brett G. Brett	.337	166	43	30	56	8	5	10	23	17	0	20	2	3	184	104	23	0	1	6	4	.397	.627	1.023
4	Tony Fernandez T. Fernandez	.327	150	43	13	49	11	0	1	23	10	2	16	5	1	168	63	12	2	4	3	4	.367	.420	.787
5	Pete Rose P. Rose	.321	268	67	30	86	13	2	5	22	28	2	22	2	5	301	118	20	1	1	7	3	.388	.440	.828
6	Albert Pujols A. Pujols	.319	304	88	57	97	18	1	19	54	50	5	46	1	2	360	174	38	0	1	20	7	.422	.572	.995
7	Lance Berkman L. Berkman	.317	186	52	38	59	11	1	9	41	31	3	41	4	1	224	99	21	0	3	6	4	.417	.532	.949
8	Marquis Grissom M. Grissom	.317	218	52	34	69	7	3	5	20	12	1	42	12	4	231	97	15	0	0	0	2	.355	.445	.800
9	Roberto Alomar R. Alomar	.313	230	58	32	72	16	1	4	33	27	0	32	20	2	263	102	21	3	3	3	9	.381	.443	.824
10	Hideki Matsui H. Matsui	.312	205	56	32	64	15	1	10	39	27	1	33	0	0	235	111	26	0	2	2	5	.391	.541	.933
11	Derek Jeter D. Jeter	.308	650	158	111	200	32	5	20	61	66	5	135	18	5	734	302	57	9	4	3	14	.374	.465	.838
12	Carlos Beltran C. Beltran	.307	215	65	45	66	15	1	16	42	37	2	33	11	0	256	131	32	1	1	2	3	.412	.609	1.021
13	Fred McGriff F. McGriff	.303	188	50	36	57	10	1	10	37	27	0	40	1	1	218	99	21	0	3	4	4	.385	.527	.912
14	David Freese D. Freese	.299	204	69	26	61	17	2	10	36	20	4	55	0	1	230	112	29	0	2	2	9	.370	.549	.919
15	Devon White D. White	.296	189	49	27	56	12	4	3	20	19	2	48	7	6	211	85	19	0	1	2	1	.365	.450	.815
16	Yordan Alvarez Y. Alvarez	.294	214	60	39	63	13	3	12	41	31	5	69	0	0	252	118	28	0	2	5	1	.393	.551	.944
17	Bill Russell B. Russell	.294	194	49	14	57	5	3	0	18	11	0	15	3	3	209	68	8	4	0	3	5	.332	.351	.682
18	Randy Arozarena R. Arozarena	.292	161	45	33	47	6	1	12	19	17	6	52	8	2	184	91	19	0	0	2	3	.380	.565	.946
19	David Ortiz D. Ortiz	.289	304	85	51	88	22	2	17	61	59	2	72	0	1	369	165	41	0	4	11	4	.404	.543	.947
20	Chipper Jones C. Jones	.287	338	93	58	97	18	0	13	47	72	1	61	8	3	417	154	31	1	5	11	10	.409	.456	.864
21	Manny Ramirez M. Ramirez	.285	410	111	67	117	19	0	29	78	72	5	91	1	1	493	223	48	0	6	12	17	.394	.544	.937
22	Paul O'Neill P. O'Neill	.284	299	85	39	85	17	2	11	39	38	0	41	5	0	340	139	30	1	2	2	12	.363	.465	.828
23	Rickey Henderson R. Henderson	.284	222	60	47	63	12	4	5	20	37	2	32	33	6	262	98	21	0	1	0	1	.389	.441	.831
24	Michael Brantley M. Brantley	.283	244	62	22	69	7	0	5	27	24	1	46	4	0	271	91	12	1	1	2	10	.348	.373	.721
25	Carlos Correa C. Correa	.282	323	85	38	91	19	0	18	63	31	4	84	1	0	358	164	37	0	0	2	8	.352	.508	.860