Ted Williams had the best on-base percentage in the AL in 1941, with an on-base percentage of .553.

Interpreted as:

best obp with a minimum of 3.1 PA per team game by a player in the al in 1941

	NAME	OBP	SEASON	TM	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	GIDP	AVG	SLG	OPS	WRC	WRAA	WOBA	WRC+	BRAA
1	Ted Williams T. Williams	.553	1941	BSA	143	456	135	185	33	3	37	120	147	3	27	2	4	606	335	73	0	10	.406	.735	1.287	179	108.8	.568	221	96.9
2	Roy Cullenbine R. Cullenbine	.452	1941	SLA	149	501	82	159	29	9	9	98	121	2	43	6	4	629	233	47	5	4	.317	.465	.917	119	46.7	.431	141	33.6
3	Joe DiMaggio J. DiMaggio	.440	1941	NYY	139	541	122	193	43	11	30	125	76	4	13	4	2	621	348	84	0	6	.357	.643	1.083	144	72.3	.486	181	66.6
4	Charlie Keller C. Keller	.416	1941	NYY	140	507	102	151	24	10	33	122	102	1	65	6	4	610	294	67	0	3	.298	.580	.996	125	54.4	.450	161	48.8
5	Jimmie Foxx J. Foxx	.412	1941	BSA	135	487	87	146	27	8	19	105	93	0	103	2	5	582	246	54	2	21	.300	.505	.917	107	39.6	.423	137	28.2
6	Cecil Travis C. Travis	.410	1941	WSH	152	608	106	218	39	19	7	101	52	1	25	2	2	663	316	65	2	13	.359	.520	.930	123	46.7	.426	144	38.3
7	Joe Cronin J. Cronin	.406	1941	BSA	143	518	98	161	38	8	16	95	82	1	55	1	4	615	263	62	14	20	.311	.508	.914	112	40.7	.420	135	28.6
8	Barney McCosky B. McCosky	.401	1941	DET	127	494	80	160	25	8	3	55	61	3	33	8	3	565	210	36	7	5	.324	.425	.827	89	23.6	.388	112	9.2
9	Taffy Wright T. Wright	.399	1941	CWS	136	513	71	165	35	5	10	97	60	6	27	5	4	580	240	50	1	8	.322	.468	.867	98	30.6	.403	129	21.9
10	Luke Appling L. Appling	.399	1941	CWS	154	592	93	186	26	8	1	57	82	1	32	12	8	677	231	35	2	10	.314	.390	.789	99	21.2	.375	112	11
11	Jeff Heath J. Heath	.396	1941	CLE	151	585	89	199	32	20	24	123	50	4	69	18	12	643	343	76	4	5	.340	.586	.982	128	53.9	.443	154	45.8
12	George McQuinn G. McQuinn	.388	1941	SLA	130	495	93	147	28	4	18	80	74	0	30	5	4	574	237	50	5	10	.297	.479	.867	96	29.6	.401	123	17.7
13	Wally Moses W. Moses	.388	1941	PHA	116	438	78	132	31	4	4	35	62	0	27	3	3	509	183	39	9	6	.301	.418	.806	76	17.5	.379	113	8.7
14	Buddy Lewis B. Lewis	.386	1941	WSH	149	569	97	169	29	11	9	72	82	0	30	10	7	653	247	49	2	14	.297	.434	.820	100	24.6	.383	119	16.4
15	Dick Siebert D. Siebert	.385	1941	PHA	123	467	63	156	28	8	5	79	37	2	22	1	3	513	215	41	7	12	.334	.460	.846	82	22.7	.391	120	13.8
16	Dom DiMaggio D. DiMaggio	.385	1941	BSA	144	584	117	165	37	6	8	58	90	7	57	13	6	688	238	51	7	7	.283	.408	.792	101	21.5	.375	109	8
17	Bob Johnson B. Johnson	.385	1941	PHA	149	552	98	152	30	8	22	107	95	3	75	6	4	653	264	60	3	16	.275	.478	.863	108	32.6	.399	125	21.3
18	Benny McCoy B. McCoy	.384	1941	PHA	141	517	86	140	12	7	8	61	95	0	50	3	3	620	190	27	8	12	.271	.368	.751	85	12.9	.361	103	2.1
19	Sam Chapman S. Chapman	.378	1941	PHA	143	552	97	178	29	9	25	106	47	2	49	6	9	602	300	63	1	13	.322	.543	.921	109	39.2	.419	136	28.8
20	Pinky Higgins P. Higgins	.378	1941	DET	147	540	79	161	28	3	11	73	67	2	45	5	4	619	228	42	10	20	.298	.422	.800	91	19.6	.375	105	3.9
21	Wally Judnich W. Judnich	.377	1941	SLA	146	546	90	155	40	6	14	83	80	2	45	5	5	632	249	60	4	12	.284	.456	.833	99	25.7	.387	115	12.6
22	Tommy Henrich T. Henrich	.377	1941	NYY	144	538	106	149	27	5	31	85	81	5	40	3	1	632	279	63	8	6	.277	.519	.895	110	36.5	.409	137	30.7
23	Harlond Clift H. Clift	.376	1941	SLA	154	584	108	149	33	9	17	84	113	0	93	6	4	703	251	59	6	12	.255	.430	.806	105	23.6	.378	110	9
24	Frankie Hayes F. Hayes	.369	1941	PHA	126	439	66	123	27	4	12	63	62	0	56	2	0	502	194	43	1	23	.280	.442	.811	75	16.8	.378	112	8.2
25	Bruce Campbell B. Campbell	.364	1941	DET	141	512	72	141	28	10	15	93	68	3	67	3	3	584	234	53	1	7	.275	.457	.821	88	20.5	.380	107	5.7