50 players are tied for the highest batting average in a postseason game, with an average of 1.000. The first three are Travis Jankowski, Andre Ethier and Brandon Guyer.

Interpreted as:

highest batting average by a player in game 7

	NAME	AVG	DATE	TM		OPP	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP
1	Travis Jankowski T. Jankowski	1.000	10/23/2023	TEX	@	HOU	1	0	1	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0	0
2	Andre Ethier A. Ethier	1.000	11/1/2017	LAD	vs	HOU	1	0	1	0	0	0	1	0	0	0	0	0	1	1	0	0	0	0	0
3	Brandon Guyer B. Guyer	1.000	11/2/2016	CLE	vs	CHC	2	2	2	1	0	0	1	1	0	0	0	0	3	3	1	0	0	0	0
4	Miguel Montero M. Montero	1.000	11/2/2016	CHC	@	CLE	1	0	1	0	0	0	1	0	0	0	0	0	1	1	0	0	0	0	0
5	David Ross D. Ross	1.000	11/2/2016	CHC	@	CLE	1	1	1	0	0	1	1	1	0	0	0	0	2	4	1	0	0	0	0
6	Pablo Sandoval P. Sandoval	1.000	10/29/2014	SFG	@	KCR	3	2	3	1	0	0	0	0	1	0	0	0	4	4	1	0	0	0	0
7	Yadier Molina Y. Molina	1.000	10/22/2012	STL	@	SFG	4	0	4	0	0	0	0	0	0	0	0	0	4	4	0	0	0	0	0
8	Marlon Anderson M. Anderson	1.000	10/21/2004	STL	vs	HOU	1	1	1	1	0	0	0	0	0	0	0	0	1	2	1	0	0	0	0
9	Roger Cedeno R. Cedeno	1.000	10/21/2004	STL	vs	HOU	1	1	1	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0	0
10	Doug Mientkiewicz D. Mientkiewicz	1.000	10/20/2004	BOS	@	NYY	1	0	1	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0	0
11	Aaron Boone A. Boone	1.000	10/16/2003	NYY	vs	BOS	1	1	1	0	0	1	1	0	0	0	0	0	1	4	1	0	0	0	0
12	Jeff Conine J. Conine	1.000	10/15/2003	FLA	@	CHC	3	2	3	0	0	0	0	1	0	0	0	0	4	3	0	0	0	0	0
13	Troy O'Leary T. O'Leary	1.000	10/15/2003	CHC	vs	FLA	1	1	1	0	0	1	1	0	0	0	0	0	1	4	1	0	0	0	0
14	David Justice D. Justice	1.000	11/4/2001	NYY	@	ARI	1	0	1	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0	0
15	Francisco Cabrera F. Cabrera	1.000	10/14/1992	ATL	vs	PIT	1	0	1	0	0	0	2	0	0	0	0	0	1	1	0	0	0	0	0
16	Jeff Treadway J. Treadway	1.000	10/14/1992	ATL	vs	PIT	1	0	1	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0	0
17	Randy Bush R. Bush	1.000	10/27/1991	MIN	vs	ATL	1	0	1	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0	0
18	Gene Larkin G. Larkin	1.000	10/27/1991	MIN	vs	ATL	1	0	1	0	0	0	1	0	0	0	0	0	1	1	0	0	0	0	0
19	Franklin Stubbs F. Stubbs	1.000	10/12/1988	LAD	vs	NYM	2	0	2	0	0	0	0	0	0	0	0	0	2	2	0	0	0	0	0
20	Eddie Milner E. Milner	1.000	10/14/1987	SFG	@	STL	1	0	1	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0	0
21	Terry Pendleton T. Pendleton	1.000	10/14/1987	STL	vs	SFG	1	1	1	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0	0
22	Lee Mazzilli L. Mazzilli	1.000	10/27/1986	NYM	vs	BOS	1	1	1	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0	0
23	Jesse Orosco J. Orosco	1.000	10/27/1986	NYM	vs	BOS	1	0	1	0	0	0	1	0	0	0	0	0	1	1	0	0	0	0	0
24	Rance Mulliniks R. Mulliniks	1.000	10/16/1985	TOR	vs	KCR	1	0	1	1	0	0	0	1	0	0	0	0	2	2	1	0	0	0	0
25	Don Gullett D. Gullett	1.000	10/22/1975	CIN	@	BOS	1	0	1	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0	0