Tripp Sigman has the highest batting average with 20+ at-bats in a season, with an average of .517 in 1929.

Interpreted as:

highest ba by a player in a season with 20 or more ab

	NAME	AVG	AB	SEASON	TM	G	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	OBP	SLG	OPS	WRC	WRAA	WOBA	WRC+	BRAA
1	Tripp Sigman T. Sigman	.517	29	1929	PHN	10	8	15	1	0	2	9	3	0	1	0		32	22	3	0				.563	.759	1.321	11	6.3	.584	216	5.5
2	Rudy Pemberton R. Pemberton	.512	41	1996	BOS	13	11	21	8	0	1	10	2	2	4	3	1	45	32	9	0	0	0	0	.556	.780	1.336	15	9.1	.572	237	8.5
3	Cameron Maybin C. Maybin	.500	32	2008	FLA	8	9	16	2	0	0	2	3	0	8	4	0	36	18	2	1	0	0	0	.543	.563	1.105	9	4.8	.491	202	4.6
4	Duane Kuiper D. Kuiper	.500	22	1974	CLE	10	7	11	2	0	0	4	2	0	2	1	1	24	13	2	0	0	0	1	.542	.591	1.133	6	3.5	.516	234	3.5
5	Gil Coan G. Coan	.500	42	1947	WSH	11	5	21	3	2	0	3	5	0	6	2	1	47	28	5	0			0	.553	.667	1.220	13	7.8	.553	243	7.8
6	Eddie Murphy E. Murphy	.486	35	1919	CWS	30	8	17	4	0	0	5	7	0	0	0		42	21	4	0				.571	.600	1.171	11	6.6	.547	223	6
7	Bennie Tate B. Tate	.481	27	1925	WSH	16	0	13	3	0	0	7	2	0	2	0	0	30	16	3	1				.517	.593	1.110	8	3.9	.509	188	3.7
8	Jesus Sucre J. Sucre	.480	25	2016	SEA	9	4	12	2	0	1	5	2	2	5	0	0	29	17	3	0	0	0	1	.552	.680	1.232	8	5	.525	245	5.1
9	Charlie Reilly C. Reilly	.478	23	1889	COL	6	5	11	1	0	3	6	2	1	2	9		26	21	4					.538	.913	1.452	10	6.5	.634	260	6.6
10	Kevin Rhomberg K. Rhomberg	.476	21	1983	CLE	12	2	10	0	0	0	2	2	0	4	1	1	24	10	0	0	1	0	0	.500	.476	.976	5	2.2	.436	172	2
11	Sig Gryska S. Gryska	.476	21	1938	SLA	7	3	10	2	1	0	4	3	0	3	0	0	24	14	3	0				.542	.667	1.208	7	3.9	.542	190	3.2
12	Craig Wilson C. Wilson	.468	47	1998	CWS	13	14	22	5	0	3	10	3	0	6	1	0	53	36	8	2	1	0	0	.490	.766	1.256	15	8.8	.530	225	8.6
13	Dick Hall D. Hall	.464	28	1963	BAL	48	7	13	1	0	1	4	0	0	8	0	0	30	17	2	2	0	0	0	.464	.607	1.071	7	3.9	.476	205	3.6
14	Freddy Leach F. Leach	.464	28	1924	PHN	8	6	13	2	1	2	7	2	0	1	0	0	31	23	5	1				.500	.821	1.321	10	5.8	.584	238	5.3
15	Gary Ward G. Ward	.463	41	1980	MIN	13	11	19	6	2	1	10	3	0	6	0	0	46	32	9	1	1	1	0	.489	.780	1.269	13	7.8	.540	236	7.4
16	Walt Weiss W. Weiss	.462	26	1987	OAK	16	3	12	4	0	0	1	2	0	2	1	2	29	16	4	1	0	0	0	.500	.615	1.115	7	3.8	.485	205	3.9
17	Vince Sherlock V. Sherlock	.462	26	1935	BKN	9	4	12	1	0	0	6	1	0	2	1		27	13	1	0			0	.481	.500	.981	6	2.5	.455	170	2.4
18	Dan O'Connor D. O'Connor	.462	26	1890	LOU	6	3	12	1	1	0	5	1	0		5		27	15	2					.481	.577	1.058	8	3.6	.500	193	3.8
19	Scott Cooper S. Cooper	.457	35	1991	BOS	14	6	16	4	2	0	7	2	0	2	0	0	37	24	6	0	0	0	0	.486	.686	1.172	10	5.6	.513	218	5.2
20	Willie Bloomquist W. Bloomquist	.455	33	2002	SEA	12	11	15	4	0	0	7	5	0	2	3	1	38	19	4	0	0	0	0	.526	.576	1.102	9	4.9	.483	209	5.1
21	Sam Horn S. Horn	.455	33	1993	CLE	12	8	15	1	0	4	8	1	1	5	0	0	36	28	5	0	1	0	1	.472	.848	1.321	11	6.7	.557	248	6.6
22	Bob Didier B. Didier	.455	22	1973	DET	7	3	10	1	0	0	1	3	0	0	0	0	25	11	1	0	0	0	0	.520	.500	1.020	6	2.8	.466	194	2.6
23	Ralph Winegarner R. Winegarner	.455	22	1930	CLE	5	5	10	1	0	0	2	1	0	7	0	0	24	11	1	1				.478	.500	.978	5	2	.448	152	1.8
24	Ed Crane E. Crane	.452	31	1893	TOT	15	9	14	2	0	0	3	7	0	0	0		38	16	2					.553	.516	1.069	12	5.6	.521	185	5.5
25	Greg Legg G. Legg	.450	20	1986	PHI	11	2	9	1	0	0	1	0	0	3	0	0	20	10	1	0	0	0	0	.450	.500	.950	4	1.7	.425	167	1.6