Joe Jackson has the best on-base percentage by a rookie with 400+ at-bats, with an on-base percentage of .468 in 1911.

	NAME	OBP	AB	SEASON	TM	G	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	SLG	OPS	wRC	WRAA	wOBA	wRC+	BRAA
1	Joe Jackson J. Jackson	.468	571	1911	CLE	147	126	233	45	19	7	83	56	8	43	41		641	337	71	6				.408	.590	1.058	151	75.1	.494	184	68.6
2	Roy Thomas R. Thomas	.457	547	1899	PHI	150	137	178	12	4	0	47	115	17	45	42		702	198	16	23				.325	.362	.819	137	39.9	.414	137	37.6
3	Benny Kauff B. Kauff	.447	571	1914	IND	154	120	211	44	13	8	95	72	8	55	75		667	305	65	16				.370	.534	.981	136	66	.465	167	52.6
4	Ted Williams T. Williams	.436	565	1939	BSA	149	131	185	44	11	31	145	107	2	64	2	1	677	344	86	3			10	.327	.609	1.045	150	66.1	.464	156	53.1
5	Cupid Childs C. Childs	.434	493	1890	SYR	126	109	170	33	14	2	89	72	6		56		571	237	49					.345	.481	.915	135	47.8	.438	161	52.9
6	Elmer Flick E. Flick	.430	453	1898	PHI	134	84	137	16	13	8	81	86	15	36	23		565	203	37	11				.302	.448	.878	114	40.2	.427	149	37.8
7	Minnie Minoso M. Minoso	.422	530	1951	TOT	146	112	173	34	14	10	76	72	16	42	31	10	622	265	58	4			12	.326	.500	.922	115	41.8	.423	150	38.9
8	Aaron Judge A. Judge	.422	542	2017	NYY	155	128	154	24	3	52	114	127	5	208	9	4	678	340	79	0	4	11	15	.284	.627	1.049	145	62.5	.430	174	61.5
9	Ginger Beaumont G. Beaumont	.416	437	1899	PIT	111	90	154	15	8	3	38	41	7	27	31		489	194	26	4				.352	.444	.860	95	27.4	.413	135	25.1
10	Jimmy Williams J. Williams	.416	621	1899	PIT	153	126	220	28	27	9	116	60	6	51	26		693	329	64	6				.354	.530	.946	150	54.3	.441	151	51.1
11	Lu Blue L. Blue	.416	585	1921	DET	153	103	180	33	11	5	75	103	5	47	13	17	709	250	49	16				.308	.427	.843	116	27.7	.396	120	19.2
12	Jimmy Bannon J. Bannon	.414	494	1894	BSN	128	130	166	29	10	13	114	62	4	42	47		566	254	52	6				.336	.514	.928	127	24.6	.422	114	14.9
13	Billy Goodman B. Goodman	.414	445	1948	BSA	127	65	138	27	2	1	66	74	5	44	5	3	527	172	30	3			18	.310	.387	.801	80	17.9	.385	111	7.8
14	Ferris Fain F. Fain	.414	461	1947	PHA	136	70	134	28	6	7	71	95	2	34	4	5	567	195	41	9			15	.291	.423	.837	90	26	.396	137	24.4
15	Bill Joyce B. Joyce	.413	489	1890	BKP	133	121	123	18	18	1	78	123	12	77	43		624	180	37					.252	.368	.782	125	29.3	.394	111	12.6
16	Billy Hamilton B. Hamilton	.413	534	1889	KCC	137	144	161	17	12	3	77	87	14	41	111		635	211	32					.301	.395	.808	130	32.6	.396	124	23.8
17	Paul Waner P. Waner	.413	536	1926	PIT	144	101	180	35	22	8	79	66	4	19	11		618	283	65	12				.336	.528	.941	116	41.4	.430	148	36.3
18	Les Fleming L. Fleming	.412	548	1942	CLE	156	71	160	27	4	14	82	106	6	57	6	8	662	237	45	2			13	.292	.432	.845	109	38.3	.404	144	34.3
19	Joe Sewell J. Sewell	.412	572	1921	CLE	154	101	182	36	12	4	93	80	11	17	7	6	683	254	52	20				.318	.444	.856	114	28.3	.399	120	18.4
20	Earle Combs E. Combs	.411	593	1925	NYY	150	117	203	36	13	3	62	65	4	43	12	13	673	274	52	11				.342	.462	.873	116	27.8	.403	124	22.6
21	Richie Ashburn R. Ashburn	.410	463	1948	PHN	117	78	154	17	4	2	40	60	1	22	32		530	185	23	6			1	.333	.400	.810	81	18.3	.385	127	17.5
22	Patsy Dougherty P. Dougherty	.407	438	1902	BSA	108	77	150	12	6	0	34	42	6	41	20		489	174	18	3				.342	.397	.805	82	24.2	.390	122	15
23	Lefty Marr L. Marr	.407	546	1889	COL	139	110	167	26	15	1	75	87	6	32	29		639	226	42					.306	.414	.821	132	33.6	.397	136	36.6
24	Ray Grimes R. Grimes	.406	530	1921	CHC	147	91	170	38	6	6	79	70	6	55	5	8	622	238	50	16				.321	.449	.855	103	25	.397	130	23.6
25	Chick Stahl C. Stahl	.406	469	1897	BSN	114	112	166	30	13	4	97	38	3	18	18		515	234	47	5				.354	.499	.905	107	29.7	.421	129	23.8