highest batting average by a pitcher in a season with a minimum of 40 plate appearances

Walter Johnson has the highest batting average by a pitcher with 40+ plate appearances in a season, with an average of .433 in 1925.

	NAME	AVG	PA	SEASON	TM	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	TB	XBH	SH	SF	IBB	GIDP	OBP	SLG	OPS	WRC	WRAA	WOBA	WRC+	BRAA
1	Walter Johnson W. Johnson	.433	107	1925	WSH	36	97	12	42	6	1	2	20	3	1	6	0	1	56	9	6				.455	.577	1.033	24	10.3	.469	165	9.8
2	Jack Bentley J. Bentley	.427	94	1923	NYG	52	89	9	38	6	2	1	14	3	0	4	0	0	51	9	2				.446	.573	1.019	21	9	.466	171	8.7
3	Herb Goodall H. Goodall	.422	48	1890	LOU	19	45	10	19	2	0	0	5	1	2		0		21	2					.458	.467	.925	12	4.5	.450	166	4.8
4	Allen Watson A. Watson	.417	41	1995	STL	21	36	5	15	4	0	0	5	2	0	7	0	0	19	4	3	0	0	1	.447	.528	.975	9	3.4	.432	166	3.4
5	Charlie Hickman C. Hickman	.397	68	1899	BSN	19	63	15	25	2	7	0	15	2	2	7	1		41	9	1				.433	.651	1.084	18	8.1	.492	171	7.1
6	Carl Scheib C. Scheib	.396	55	1951	PHA	48	53	9	21	2	2	2	8	1	1	5	0	0	33	6	0			1	.418	.623	1.041	12	5.6	.466	174	5.1
7	Wes Obermueller W. Obermueller	.385	42	2004	MIL	24	39	2	15	3	0	0	5	1	0	14	0	0	18	3	2	0	0	1	.400	.462	.862	7	1.7	.378	128	1.5
8	Earl Yingling E. Yingling	.383	71	1913	BKN	40	60	11	23	1	0	0	5	9	0	8	0		24	1	2				.464	.400	.864	13	4.8	.421	148	4
9	Curt Davis C. Davis	.381	115	1939	SLN	63	105	10	40	5	0	1	17	3	0	22	0		48	6	7			2	.398	.457	.855	19	4.7	.394	126	3.7
10	Jimmy Zinn J. Zinn	.381	50	1929	CLE	20	42	7	16	4	1	1	8	4	1	2	0	0	25	6	3				.447	.595	1.042	11	4.7	.464	163	4.3
11	Johnny Cooney J. Cooney	.379	73	1923	BSN	42	66	7	25	1	0	0	3	4	0	2	0	1	26	1	3				.414	.394	.808	11	2.2	.385	122	2.1
12	Nels Potter N. Potter	.378	40	1948	TOT	28	37	1	14	1	0	0	4	1	0	3	0	0	15	1	2			2	.395	.405	.800	6	1.1	.376	120	1
13	Rick Rhoden R. Rhoden	.375	45	1980	PIT	20	40	3	15	3	0	1	11	1	0	2	0	0	21	4	4	0	0	0	.390	.525	.915	8	3.1	.408	157	2.9
14	Jerry Walker J. Walker	.368	41	1960	BAL	35	38	6	14	2	0	0	3	2	0	6	0	0	16	2	1	0	0	0	.400	.421	.821	6	1.7	.372	130	1.5
15	Ben Chapman B. Chapman	.368	44	1944	BKN	20	38	11	14	4	0	0	11	5	0	4	1		18	4	1			0	.442	.474	.916	8	3.4	.430	158	3
16	Cookie Cuccurullo C. Cuccurullo	.368	40	1944	PIT	36	38	4	14	4	0	0	4	2	0	3	0		18	4	0			3	.400	.474	.874	7	2.4	.408	141	1.9
17	Clarence Mitchell C. Mitchell	.367	53	1919	BKN	34	49	7	18	1	0	1	2	4	0	4	0		22	2	0				.415	.449	.864	9	3.3	.412	161	3.3
18	Dan Haren D. Haren	.364	57	2010	TOT	22	55	8	20	6	0	1	7	1	0	9	0	0	29	7	1	0	0	0	.375	.527	.902	10	3.3	.393	138	2.6
19	Mickey McDermott M. McDermott	.364	53	1950	BSA	39	44	11	16	5	0	0	12	9	0	3	0	0	21	5	0			1	.472	.477	.949	11	4.1	.441	141	3
20	Red Ruffing R. Ruffing	.364	117	1930	TOT	58	110	17	40	8	2	4	22	7	0	8	0	0	64	14	0				.402	.582	.984	24	7.6	.429	149	8.2
21	Brickyard Kennedy B. Kennedy	.362	62	1903	PIT	23	58	7	21	4	3	0	10	2	0	6	0		31	7	2				.383	.534	.918	12	4.8	.423	148	3.9
22	Don Newcombe D. Newcombe	.361	83	1958	TOT	50	72	11	26	1	0	1	9	10	0	12	0	0	30	2	0	1	0	0	.434	.417	.850	14	4.3	.386	128	2.9
23	George Uhle G. Uhle	.361	156	1923	CLE	58	144	23	52	10	3	0	22	7	0	10	2	1	68	13	5				.391	.472	.863	26	6.4	.398	124	4.9
24	Ad Gumbert A. Gumbert	.361	105	1895	BKN	34	97	21	35	6	0	2	13	7	1	10	0		47	8	0				.410	.485	.894	23	5.3	.417	132	5.7
25	Scott Stratton S. Stratton	.360	148	1894	TOT	37	136	39	49	6	6	3	27	11	1	3	4		76	15	0				.412	.559	.971	35	8	.433	123	6.3