highest on base percentage in a season for a player who had a batting average of over.400 and over 100 at bats

Ted Williams has the highest on-base percentage with a batting average above .400 with >100 at-bats in a season, with an on-base percentage of .553 in 1941.

	NAME	OBP	AVG	AB	SEASON	TM	G	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	SLG	OPS	WRC	WRAA	WOBA	WRC+	BRAA
1	Ted Williams T. Williams	.553	.406	456	1941	BSA	143	135	185	33	3	37	120	147	3	27	2	4	606	335	73	0			10	.735	1.287	179	108.8	.568	221	96.9
2	Billy Hamilton B. Hamilton	.521	.403	558	1894	PHI	132	198	225	25	15	4	90	128	9	19	100		702	292	44	7				.523	1.044	209	81.9	.495	157	76.2
3	Rogers Hornsby R. Hornsby	.507	.424	536	1924	SLN	143	121	227	43	14	25	94	89	2	32	5	12	640	373	82	13				.696	1.203	175	96.7	.537	221	95.9
4	Hugh Duffy H. Duffy	.502	.440	539	1894	BSN	125	160	237	51	16	18	145	66	1	15	48		616	374	85	10				.694	1.196	203	91.3	.526	169	80.7
5	Ed Delahanty E. Delahanty	.500	.404	480	1895	PHI	116	149	194	49	10	11	106	86	6	31	46		578	296	70	6				.617	1.117	174	78.7	.510	177	76.8
6	Tip O'Neill T. O'Neill	.490	.435	517	1887	STL	124	167	225	52	19	14	123	50	5	20	30		572	357	85					.691	1.180	191	96.4	.525	190	88.9
7	Rogers Hornsby R. Hornsby	.489	.403	504	1925	SLN	138	133	203	41	10	39	143	83	2	39	5	3	605	381	90	16				.756	1.245	173	94.1	.540	208	90.1
8	Jesse Burkett J. Burkett	.482	.405	555	1895	CLE	132	153	225	22	13	5	83	74	8	32	41		644	288	40	7				.519	1.001	172	65.6	.473	152	57.2
9	Harry Heilmann H. Heilmann	.481	.403	524	1923	DET	144	121	211	44	11	18	115	74	5	40	9	7	626	331	73	23				.632	1.113	155	78	.503	189	73.3
10	Bob Hazle B. Hazle	.477	.403	134	1957	MIL	41	26	54	12	0	7	27	18	1	15	1	3	155	87	19	2	0	4	1	.649	1.126	37	20.2	.486	207	20.1
11	Ed Delahanty E. Delahanty	.475	.404	495	1894	PHI	116	148	200	39	19	4	133	60	7	16	21		567	289	62	5				.584	1.059	161	58.3	.481	150	53.8
12	Hughie Jennings H. Jennings	.472	.401	521	1896	BAL	130	125	209	27	9	0	121	19	51	11	70		602	254	36	11				.488	.960	148	55.6	.461	154	52.2
13	Joe Jackson J. Jackson	.468	.408	571	1911	CLE	147	126	233	45	19	7	83	56	8	43	41		641	337	71	6				.590	1.058	151	75.1	.494	184	68.6
14	George Sisler G. Sisler	.467	.420	586	1922	SLA	142	134	246	42	18	8	105	49	3	14	51	19	654	348	68	16				.594	1.061	152	70.1	.481	170	61.2
15	Ty Cobb T. Cobb	.467	.420	591	1911	DET	146	147	248	47	24	8	127	44	8	43	83		654	367	79	11				.621	1.088	160	82.2	.506	189	74
16	Sam Thompson S. Thompson	.465	.415	451	1894	PHI	102	114	187	32	28	13	147	41	1	13	27		501	314	73	8				.696	1.161	153	62.8	.504	162	58.7
17	Ed Delahanty E. Delahanty	.464	.410	581	1899	PHI	146	135	238	55	9	9	137	55	4	22	30		645	338	73	5				.582	1.046	164	74.8	.488	177	72.6
18	Pete Browning P. Browning	.464	.402	547	1887	LOU	134	137	220	35	16	4	118	55	8	39	103		610	299	55					.547	1.011	172	71.3	.465	161	64.3
19	Willie Keeler W. Keeler	.464	.424	564	1897	BAL	129	145	239	27	19	0	74	35	7	5	64		618	304	46	12				.539	1.003	155	61.5	.470	159	57.2
20	Nap Lajoie N. Lajoie	.463	.426	544	1901	PHA	131	145	232	48	14	14	125	24	13	9	27		582	350	76	1				.643	1.106	157	81	.506	186	71.5
21	Ty Cobb T. Cobb	.462	.401	526	1922	DET	137	99	211	42	16	4	99	55	4	24	9	13	612	297	62	27				.565	1.026	136	58.8	.467	167	54.3
22	Jesse Burkett J. Burkett	.461	.410	586	1896	CLE	133	160	240	27	16	6	72	49	7	19	34		647	317	49	5				.541	1.002	163	63.9	.468	154	56.2
23	Rogers Hornsby R. Hornsby	.459	.401	623	1922	SLN	154	141	250	46	14	42	152	65	1	50	17	12	704	450	102	15				.722	1.181	186	97.8	.520	197	92.7
24	Tuck Turner T. Turner	.458	.418	347	1894	PHI	82	95	145	21	9	1	84	24	2	13	11		382	187	31	9				.539	.997	100	31.1	.460	139	28
25	Ty Cobb T. Cobb	.456	.409	553	1912	DET	140	120	226	30	23	7	83	43	5	30	61	34	609	323	60	8				.584	1.040	140	67.5	.485	188	65