highest single season batting average while having 300 at bats after 1900

Since 1901, Nap Lajoie has the highest batting average with 300+ at-bats in a season, with an average of .426 in 1901.

Interpreted as:

highest single season batting average by a player while having 300 or more at bats after 1900

	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	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
2	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
3	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
4	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
5	Ty Cobb T. Cobb	.409	553	1912	DET	140	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
6	Joe Jackson J. Jackson	.408	571	1911	CLE	147	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
7	George Sisler G. Sisler	.407	631	1920	SLA	154	137	257	49	18	19	122	46	2	19	42	17	692	399	86	13				.449	.632	1.082	161	82.5	.494	176	68.6
8	Ted Williams T. Williams	.406	456	1941	BSA	143	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
9	Rogers Hornsby R. Hornsby	.403	504	1925	SLN	138	133	203	41	10	39	143	83	2	39	5	3	605	381	90	16				.489	.756	1.245	173	94.1	.540	208	90.1
10	Harry Heilmann H. Heilmann	.403	524	1923	DET	144	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
11	Rogers Hornsby R. Hornsby	.401	623	1922	SLN	154	141	250	46	14	42	152	65	1	50	17	12	704	450	102	15				.459	.722	1.181	186	97.8	.520	197	92.7
12	Bill Terry B. Terry	.401	633	1930	NYG	154	139	254	39	15	23	129	57	1	33	8		710	392	77	19				.452	.619	1.071	171	71.2	.468	156	62.1
13	Ty Cobb T. Cobb	.401	526	1922	DET	137	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
14	Lefty O'Doul L. O'Doul	.398	638	1929	PHN	154	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
15	Harry Heilmann H. Heilmann	.398	505	1927	DET	141	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
16	Rogers Hornsby R. Hornsby	.397	592	1921	SLN	154	131	235	44	18	21	126	60	7	48	13	13	674	378	83	15				.458	.639	1.097	162	77.5	.489	191	77.7
17	Joe Jackson J. Jackson	.395	572	1912	CLE	154	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
18	Tony Gwynn T. Gwynn	.394	419	1994	SDP	110	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
19	Harry Heilmann H. Heilmann	.394	602	1921	DET	149	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
20	Babe Ruth B. Ruth	.393	522	1923	NYY	152	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
21	Harry Heilmann H. Heilmann	.393	573	1925	DET	150	97	225	40	11	13	134	67	1	27	6	6	664	326	64	23				.457	.569	1.026	148	61.4	.464	158	54.6
22	Babe Herman B. Herman	.393	614	1930	BKN	153	143	241	48	11	35	130	66	4	56	18		699	416	94	15				.455	.678	1.132	180	81.8	.487	167	72.9
23	Al Simmons A. Simmons	.392	406	1927	PHA	106	86	159	36	11	15	108	31	1	30	10	2	458	262	62	20				.436	.645	1.081	107	50.7	.484	171	44
24	Ty Cobb T. Cobb	.390	428	1913	DET	122	70	167	18	16	4	67	58	4	31	51		501	229	38	11				.467	.535	1.002	107	52.2	.473	186	48.7
25	Al Simmons A. Simmons	.390	513	1931	PHA	128	105	200	37	13	22	128	47	3	45	3	3	563	329	72	0				.444	.641	1.085	135	65.1	.484	176	57.9