what st. louis cardinal has the highest postseason batting average with a minimum of 30 at bats

Pepper Martin has the highest career batting average for the Cardinals in the postseason with 30+ at-bats, with an average of .418.

	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	Pepper Martin P. Martin	.418	55	15	14	23	7	1	1	9	5	0	6	7	2	60	35	9	0		0	0	.467	.636	1.103
2	Tony Pena T. Pena	.395	43	14	7	17	1	1	0	4	6	0	6	2	1	49	20	2	0	0	0	1	.469	.465	.935
3	Lou Brock L. Brock	.391	87	21	16	34	7	2	4	13	5	0	10	14	2	92	57	13	0	0	0	0	.424	.655	1.079
4	Tito Landrum T. Landrum	.385	39	12	5	15	2	0	1	5	1	0	3	1	0	40	20	3	0	0	0	0	.400	.513	.913
5	Julian Javier J. Javier	.346	52	15	4	18	4	0	1	7	3	0	10	1	2	55	25	5	0	0	0	0	.382	.481	.863
6	Ripper Collins R. Collins	.344	32	9	4	11	1	0	0	3	1	0	3	0	1	33	12	1	0		0	0	.364	.375	.739
7	Fernando Vina F. Vina	.333	93	21	13	31	3	0	2	9	3	2	6	1	2	100	40	5	1	1	0	1	.364	.430	.794
8	Albert Pujols A. Pujols	.327	275	76	54	90	18	1	18	52	48	5	40	1	2	329	164	37	0	1	20	7	.435	.596	1.031
9	Marcell Ozuna M. Ozuna	.324	37	9	6	12	4	0	2	5	1	1	13	0	0	39	22	6	0	0	0	1	.359	.595	.954
10	George Hendrick G. Hendrick	.317	41	10	7	13	0	0	0	7	3	0	4	0	1	45	13	0	0	0	0	0	.364	.317	.681
11	Lance Berkman L. Berkman	.313	64	18	17	20	2	0	2	11	9	2	12	2	0	76	28	4	0	0	1	0	.413	.438	.851
12	Tim McCarver T. McCarver	.311	74	21	10	23	2	3	2	11	10	0	5	1	1	86	37	7	0	2	1	0	.384	.500	.884
13	Lonnie Smith L. Smith	.308	39	10	7	12	4	1	0	2	1	1	6	2	2	43	18	5	1	1	0	0	.333	.462	.795
14	Carlos Beltran C. Beltran	.306	98	29	14	30	9	1	5	21	17	1	11	3	0	118	56	15	1	1	1	2	.410	.571	.982
15	Walker Cooper W. Cooper	.300	60	16	5	18	3	1	0	6	3	0	4	0	1	65	23	4	2		2	2	.333	.383	.717
16	Charlie Gelbert C. Gelbert	.300	40	13	2	12	1	1	0	5	3	0	7	0	0	44	15	2	1		1	1	.349	.375	.724
17	Jack Clark J. Clark	.298	47	14	5	14	2	0	1	8	8	0	15	0	0	55	19	3	0	0	3	0	.400	.404	.804
18	Enos Slaughter E. Slaughter	.295	44	12	8	13	2	1	2	4	7	1	5	1	0	52	23	5	0		2	1	.404	.523	.927
19	Andy High A. High	.294	34	9	5	10	2	0	0	1	1	0	5	0	0	35	12	2	0		0	0	.314	.353	.667
20	David Freese D. Freese	.289	166	48	20	48	15	1	7	29	17	1	43	0	1	185	86	23	0	1	2	7	.357	.518	.875
21	Roger Maris R. Maris	.289	45	13	8	13	2	0	1	8	6	0	4	0	0	52	18	3	0	1	0	2	.365	.400	.765
22	Ron Gant R. Gant	.286	35	10	6	10	2	0	3	8	4	1	6	2	0	40	21	5	0	0	0	1	.375	.600	.975
23	Willie McGee W. McGee	.284	169	45	23	48	6	3	4	22	6	0	37	5	6	175	72	13	0	0	2	2	.309	.426	.735
24	Darrell Porter D. Porter	.284	67	20	5	19	6	0	1	6	13	0	15	0	0	80	28	7	0	0	2	0	.400	.418	.818
25	Keith Hernandez K. Hernandez	.282	39	10	7	11	2	0	1	9	6	0	5	0	0	45	16	3	0	0	3	1	.378	.410	.788