highest batting average for an outfielder in a single season

Hugh Duffy has the highest batting average by an outfielder in a season, with an average of .440 in 1894.

Interpreted as:

highest batting average with a minimum of 3.1 PA per team game for an outfielder in a single season

	NAME	AVG	SEASON	TM	G	AB	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	Hugh Duffy H. Duffy	.440	1894	BSN	125	539	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
2	Tip O'Neill T. O'Neill	.435	1887	STL	124	517	167	225	52	19	14	123	50	5	20	30		572	357	85					.490	.691	1.180	191	96.4	.525	190	88.9
3	Willie Keeler W. Keeler	.424	1897	BAL	129	564	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
4	Ty Cobb T. Cobb	.420	1911	DET	146	591	147	248	47	24	8	127	44	8	43	83		654	367	79	11				.467	.621	1.088	160	82.2	.506	189	74
5	Sam Thompson S. Thompson	.415	1894	PHI	102	451	114	187	32	28	13	147	41	1	13	27		501	314	73	8				.465	.696	1.161	153	62.8	.504	162	58.7
6	Ed Delahanty E. Delahanty	.410	1899	PHI	146	581	135	238	55	9	9	137	55	4	22	30		645	338	73	5				.464	.582	1.046	164	74.8	.488	177	72.6
7	Jesse Burkett J. Burkett	.410	1896	CLE	133	586	160	240	27	16	6	72	49	7	19	34		647	317	49	5				.461	.541	1.002	163	63.9	.468	154	56.2
8	Ty Cobb T. Cobb	.409	1912	DET	140	553	120	226	30	23	7	83	43	5	30	61	34	609	323	60	8				.456	.584	1.040	140	67.5	.485	188	65
9	Joe Jackson J. Jackson	.408	1911	CLE	147	571	126	233	45	19	7	83	56	8	43	41		641	337	71	6				.468	.590	1.058	151	75.1	.494	184	68.6
10	Ted Williams T. Williams	.406	1941	BSA	143	456	135	185	33	3	37	120	147	3	27	2	4	606	335	73	0			10	.553	.735	1.287	179	108.8	.568	221	96.9
11	Jesse Burkett J. Burkett	.405	1895	CLE	132	555	153	225	22	13	5	83	74	8	32	41		644	288	40	7				.482	.519	1.001	172	65.6	.473	152	57.2
12	Ed Delahanty E. Delahanty	.404	1895	PHI	116	480	149	194	49	10	11	106	86	6	31	46		578	296	70	6				.500	.617	1.117	174	78.7	.510	177	76.8
13	Ed Delahanty E. Delahanty	.404	1894	PHI	116	495	148	200	39	19	4	133	60	7	16	21		567	289	62	5				.475	.584	1.059	161	58.3	.481	150	53.8
14	Billy Hamilton B. Hamilton	.403	1894	PHI	132	558	198	225	25	15	4	90	128	9	19	100		702	292	44	7				.521	.523	1.044	209	81.9	.495	157	76.2
15	Harry Heilmann H. Heilmann	.403	1923	DET	144	524	121	211	44	11	18	115	74	5	40	9	7	626	331	73	23				.481	.632	1.113	155	78	.503	189	73.3
16	Pete Browning P. Browning	.402	1887	LOU	134	547	137	220	35	16	4	118	55	8	39	103		610	299	55					.464	.547	1.011	172	71.3	.465	161	64.3
17	Ty Cobb T. Cobb	.401	1922	DET	137	526	99	211	42	16	4	99	55	4	24	9	13	612	297	62	27				.462	.565	1.026	136	58.8	.467	167	54.3
18	Lefty O'Doul L. O'Doul	.398	1929	PHN	154	638	152	254	35	6	32	122	76	4	19	2		731	397	73	13				.465	.622	1.087	178	80.8	.483	158	62.3
19	Harry Heilmann H. Heilmann	.398	1927	DET	141	505	106	201	50	9	14	120	72	2	16	11	5	596	311	73	17				.475	.616	1.091	144	70.3	.493	177	62.2
20	Ed Delahanty E. Delahanty	.397	1896	PHI	123	499	131	198	44	17	13	126	62	9	22	37		574	315	74	4				.472	.631	1.103	161	73	.501	177	70.7
21	Jesse Burkett J. Burkett	.396	1899	STL	141	558	116	221	21	8	7	71	67	2	23	25		635	279	36	8				.463	.500	.963	147	58.9	.459	159	54.2
22	Joe Jackson J. Jackson	.395	1912	CLE	154	572	121	226	44	26	3	90	54	12	19	35	20	653	331	73	15				.458	.579	1.036	150	71.4	.483	187	68.7
23	Tony Gwynn T. Gwynn	.394	1994	SDP	110	419	79	165	35	1	12	64	48	2	19	5	0	475	238	48	1	5	16	20	.454	.568	1.022	101	40.6	.434	166	40.2
24	Harry Heilmann H. Heilmann	.394	1921	DET	149	602	114	237	43	14	19	139	53	2	37	2	6	672	365	76	15				.444	.606	1.051	151	67.5	.472	164	59.5
25	Babe Ruth B. Ruth	.393	1923	NYY	152	522	151	205	45	13	41	130	170	4	93	17	21	699	399	99	3				.545	.764	1.309	211	124.7	.571	230	120.4