highest batting average in a world series by a rookie minimum 20 at bats

Pepper Martin has the best batting average by a rookie with 20+ at-bats in a World Series, with an average of .500.

	NAME	AVG	AB	SEASON	SERIES	TM	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	.500	24	1931	World Series	SLN	7	5	12	4	0	1	5	2	0	3	5	1	26	19	5	0		0	0	.538	.792	1.330
2	Jeremy Peña J. Peña	.400	25	2022	World Series	HOU	6	5	10	2	0	1	3	1	0	7	0	1	26	15	3	0	0	0	0	.423	.600	1.023
3	Andruw Jones A. Jones	.400	20	1996	World Series	ATL	6	4	8	1	0	2	6	3	1	6	1	2	24	15	3	0	0	0	0	.500	.750	1.250
4	Randy Arozarena R. Arozarena	.364	22	2020	World Series	TBR	6	5	8	0	0	3	4	4	0	4	0	1	26	17	3	0	0	1	2	.462	.773	1.234
5	Josh Jung J. Jung	.350	20	2023	World Series	TEX	5	3	7	1	0	0	0	0	0	4	0	0	20	8	1	0	0	0	2	.350	.400	.750
6	Joe DiMaggio J. DiMaggio	.346	26	1936	World Series	NYY	6	3	9	3	0	0	3	1	0	3	0	0	28	12	3	1		0	1	.370	.462	.832
7	Jay Payton J. Payton	.333	21	2000	World Series	NYM	5	3	7	0	0	1	3	0	0	5	0	0	21	10	1	0	0	0	0	.333	.476	.810
8	Freddie Lindstrom F. Lindstrom	.333	30	1924	World Series	NYG	7	1	10	2	0	0	4	3	0	6	0	2	34	12	2	1		0	0	.394	.400	.794
9	Jimmy Sebring J. Sebring	.333	30	1903	World Series	PIT	8	3	10	0	1	1	4	1	0	4	0	1	31	15	2	0		0	0	.355	.500	.855
10	Tom Tresh T. Tresh	.321	28	1962	World Series	NYY	7	5	9	1	0	1	4	1	0	4	2	0	30	13	2	1	0	0	0	.345	.464	.809
11	Larry Doby L. Doby	.318	22	1948	World Series	CLE	6	1	7	1	0	1	2	2	0	4	0	0	24	11	2	0		0	0	.375	.500	.875
12	Donie Bush D. Bush	.318	22	1909	World Series	DET	7	5	7	1	0	0	3	5	2	3	1	2	32	8	1	3		0	0	.483	.364	.846
13	Mike McCormick M. McCormick	.310	29	1940	World Series	CIN	7	1	9	3	0	0	2	1	0	6	0	0	31	12	3	1		0	1	.333	.414	.747
14	Chuck Knoblauch C. Knoblauch	.308	26	1991	World Series	MIN	7	3	8	1	0	0	2	4	0	2	4	0	32	9	1	1	1	0	0	.387	.346	.733
15	Buster Posey B. Posey	.300	20	2010	World Series	SFG	5	2	6	0	0	1	2	1	0	6	0	0	21	9	1	0	0	0	0	.333	.450	.783
16	Billy Johnson B. Johnson	.300	20	1943	World Series	NYY	5	3	6	1	1	0	3	0	0	3	0	0	20	9	2	0		0	2	.300	.450	.750
17	Jim Gilliam J. Gilliam	.296	27	1953	World Series	BKN	6	4	8	3	0	2	4	0	1	2	0	1	28	17	5	0		0	0	.321	.630	.951
18	Evan Carter E. Carter	.286	21	2023	World Series	TEX	5	1	6	3	0	0	1	1	1	8	0	0	23	9	3	0	0	0	0	.348	.429	.776
19	Chipper Jones C. Jones	.286	21	1995	World Series	ATL	6	3	6	3	0	0	1	4	0	3	0	0	26	9	3	0	1	2	0	.385	.429	.813
20	Tony Kubek T. Kubek	.286	28	1957	World Series	NYY	7	4	8	0	0	2	4	0	0	4	0	0	29	14	2	1	0	0	1	.286	.500	.786
21	Johnny Sturm J. Sturm	.286	21	1941	World Series	NYY	5	0	6	0	0	0	2	0	1	2	1	1	22	6	0	0		0	0	.318	.286	.604
22	Walter Holke W. Holke	.286	21	1917	World Series	NYG	6	2	6	2	0	0	1	0	1	6	0	1	22	8	2	0		0	0	.318	.381	.699
23	Fred Lynn F. Lynn	.280	25	1975	World Series	BOS	7	3	7	1	0	1	5	3	0	5	0	0	29	11	2	0	1	0	0	.345	.440	.785
24	Pat Duncan P. Duncan	.269	26	1919	World Series	CIN	8	3	7	2	0	0	8	2	0	2	0	1	30	9	2	2		0	0	.321	.346	.668
25	Hideki Matsui H. Matsui	.261	23	2003	World Series	NYY	6	1	6	0	0	1	4	3	1	2	0	0	27	9	1	0	0	0	0	.370	.391	.762