which batter has the highest batting average in a season with at least 40 at bats

Rudy Pemberton has the highest batting average with 40+ at-bats in a season, with an average of .512 in his rookie season in 1996.

	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	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
2	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
3	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
4	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
5	Monte Cross M. Cross	.442	43	1894	PIT	13	14	19	1	5	2	13	5	2	4	6		53	36	8	3				.520	.837	1.357	20	10.2	.571	201	10.1
6	Hugh Duffy H. Duffy	.440	539	1894	BSN	125	160	237	51	16	18	145	66	1	15	48		616	374	85	10				.502	.694	1.196	203	91.3	.526	169	80.7
7	Babe Ganzel B. Ganzel	.438	48	1927	WSH	13	7	21	4	2	1	13	7	0	3	0	0	58	32	7	3				.509	.667	1.176	16	8.4	.528	200	7.9
8	Tip O'Neill T. O'Neill	.435	517	1887	STL	124	167	225	52	19	14	123	50	5	20	30		572	357	85					.490	.691	1.180	191	96.4	.525	190	88.9
9	Walter Johnson W. Johnson	.433	97	1925	WSH	36	12	42	6	1	2	20	3	1	6	0	1	107	56	9	6				.455	.577	1.033	24	10.3	.469	165	9.8
10	Dale Mitchell D. Mitchell	.432	44	1946	CLE	11	7	19	3	0	0	5	1	0	2	1	0	45	22	3	0			1	.444	.500	.944	8	3.7	.442	168	3.5
11	Ross Barnes R. Barnes	.429	322	1876	CWS	66	126	138	21	14	1	59	20		8			342	190	36						.590		105	53.2	.478	197	50.5
12	Jack Bentley J. Bentley	.427	89	1923	NYG	52	9	38	6	2	1	14	3	0	4	0	0	94	51	9	2				.446	.573	1.019	21	9	.466	171	8.7
13	Nap Lajoie N. Lajoie	.426	544	1901	PHA	131	145	232	48	14	14	125	24	13	9	27		582	350	76	1				.463	.643	1.106	157	81	.506	186	71.5
14	Stan Musial S. Musial	.426	47	1941	SLN	12	8	20	4	0	1	7	2	0	1	1		49	27	5	0			0	.449	.574	1.023	11	5.1	.470	186	4.9
15	Glenn Williams G. Williams	.425	40	2005	MIN	13	3	17	1	0	0	3	2	0	7	1	2	43	18	1	1	0	0	0	.452	.450	.902	8	2.7	.402	151	2.7
16	Matthew LeCroy M. LeCroy	.425	40	2001	MIN	15	6	17	5	0	3	12	0	1	8	0	1	42	31	8	0	1	0	0	.429	.775	1.204	11	6	.497	210	5.8
17	Willie Keeler W. Keeler	.424	564	1897	BAL	129	145	239	27	19	0	74	35	7	5	64		618	304	46	12				.464	.539	1.003	155	61.5	.470	159	57.2
18	Rogers Hornsby R. Hornsby	.424	536	1924	SLN	143	121	227	43	14	25	94	89	2	32	5	12	640	373	82	13				.507	.696	1.203	175	96.7	.537	221	95.9
19	Herb Goodall H. Goodall	.422	45	1890	LOU	19	10	19	2	0	0	5	1	2		0		48	21	2					.458	.467	.925	12	4.5	.450	166	4.8
20	Elmer Valo E. Valo	.420	50	1941	PHA	15	13	21	0	1	2	6	4	0	2	0	0	54	29	3	0			1	.463	.580	1.043	12	6	.478	171	5
21	George Sisler G. Sisler	.420	586	1922	SLA	142	134	246	42	18	8	105	49	3	14	51	19	654	348	68	16				.467	.594	1.061	152	70.1	.481	170	61.2
22	Ty Cobb T. Cobb	.420	591	1911	DET	146	147	248	47	24	8	127	44	8	43	83		654	367	79	11				.467	.621	1.088	160	82.2	.506	189	74
23	Fred Lynn F. Lynn	.419	43	1974	BOS	15	5	18	2	2	2	10	6	1	6	0	0	51	30	6	0	1	2	0	.490	.698	1.188	13	7.4	.513	226	6.9
24	Tuck Turner T. Turner	.418	347	1894	PHI	82	95	145	21	9	1	84	24	2	13	11		382	187	31	9				.458	.539	.997	100	31.1	.460	139	28
25	Joe Judge J. Judge	.415	41	1915	WSH	12	7	17	2	0	0	9	4	3	6	2	3	51	19	2	3				.500	.463	.963	10	5.2	.468	188	4.9