Joe Jackson has the highest on-base percentage by a rookie, with an on-base percentage of .468 in 1911.

Interpreted as:

Which is the best obp with a minimum of 3.1 PA per team game of a rookie?

	NAME	OBP	SEASON	TM	G	AB	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	1911	CLE	147	571	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	1899	PHI	150	547	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	1914	IND	154	571	120	211	44	13	8	95	72	8	55	75		667	305	65	16				.370	.534	.981	136	66	.465	167	52.6
4	Charlie Keller C. Keller	.447	1939	NYY	111	398	87	133	21	6	11	83	81	0	49	6	3	490	199	38	11			4	.334	.500	.947	97	36.5	.436	146	31.4
5	Fred Snodgrass F. Snodgrass	.440	1910	NYG	123	396	69	127	22	8	2	44	71	13	52	33		493	171	32	13				.321	.432	.871	87	36.2	.427	152	29.6
6	Ted Williams T. Williams	.436	1939	BSA	149	565	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
7	Cupid Childs C. Childs	.434	1890	SYR	126	493	109	170	33	14	2	89	72	6		56		571	237	49					.345	.481	.915	135	47.8	.438	161	52.9
8	Elmer Flick E. Flick	.430	1898	PHI	134	453	84	137	16	13	8	81	86	15	36	23		565	203	37	11				.302	.448	.878	114	40.2	.427	149	37.8
9	Fielder Jones F. Jones	.427	1896	BKN	104	395	82	140	10	8	3	46	48	2	15	18		451	175	21	6				.354	.443	.870	94	24.4	.417	135	25.3
10	Minnie Minoso M. Minoso	.422	1951	TOT	146	530	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
11	Aaron Judge A. Judge	.422	2017	NYY	155	542	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
12	Ginger Beaumont G. Beaumont	.416	1899	PIT	111	437	90	154	15	8	3	38	41	7	27	31		489	194	26	4				.352	.444	.860	95	27.4	.413	135	25.1
13	Jimmy Williams J. Williams	.416	1899	PIT	153	621	126	220	28	27	9	116	60	6	51	26		693	329	64	6				.354	.530	.946	150	54.3	.441	151	51.1
14	Lu Blue L. Blue	.416	1921	DET	153	585	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
15	Jimmy Bannon J. Bannon	.414	1894	BSN	128	494	130	166	29	10	13	114	62	4	42	47		566	254	52	6				.336	.514	.928	127	24.6	.422	114	14.9
16	Billy Goodman B. Goodman	.414	1948	BSA	127	445	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
17	Ferris Fain F. Fain	.414	1947	PHA	136	461	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
18	Bill Joyce B. Joyce	.413	1890	BKP	133	489	121	123	18	18	1	78	123	12	77	43		624	180	37					.252	.368	.782	125	29.3	.394	111	12.6
19	Billy Hamilton B. Hamilton	.413	1889	KCC	137	534	144	161	17	12	3	77	87	14	41	111		635	211	32					.301	.395	.808	130	32.6	.396	124	23.8
20	Paul Waner P. Waner	.413	1926	PIT	144	536	101	180	35	22	8	79	66	4	19	11		618	283	65	12				.336	.528	.941	116	41.4	.430	148	36.3
21	Rasty Wright R. Wright	.413	1890	TOT	101	393	89	111	11	6	0	29	81	6	4	33		480	134	17					.282	.341	.753	92	18.7	.384	131	22.6
22	Les Fleming L. Fleming	.412	1942	CLE	156	548	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
23	Joe Sewell J. Sewell	.412	1921	CLE	154	572	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
24	Earle Combs E. Combs	.411	1925	NYY	150	593	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
25	Richie Ashburn R. Ashburn	.410	1948	PHN	117	463	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