.450 or more obp by a player in a season, 500 or more pa

Pete Browning had an on-base percentage of .464 when making 500+ plate appearances in 1887.

	NAME	OBP	PA	SEASON	TM	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	TB	XBH	SH	AVG	SLG	OPS	WRC	WRAA	WOBA	WRC+	BRAA
1	Pete Browning P. Browning	.464	610	1887	LOU	134	547	137	220	35	16	4	118	55	8	39	103	299	55		.402	.547	1.011	172	71.3	.465	161	64.3
2	Tip O'Neill T. O'Neill	.490	572	1887	STL	124	517	167	225	52	19	14	123	50	5	20	30	357	85		.435	.691	1.180	191	96.4	.525	190	88.9
3	Dan Brouthers D. Brouthers	.462	565	1889	BSN	126	485	105	181	26	9	7	118	66	14	6	22	246	42		.373	.507	.969	146	59	.460	153	48.9
4	Tommy Tucker T. Tucker	.450	602	1889	BAL	134	527	103	196	22	11	5	99	42	33	26	63	255	38		.372	.484	.934	149	56.2	.446	158	55.3
5	Dan Brouthers D. Brouthers	.466	577	1890	BSP	123	460	117	152	36	9	1	97	99	18	17	28	209	46		.330	.454	.921	143	54.4	.451	141	41.6
6	Pete Browning P. Browning	.459	571	1890	CLP	118	493	112	184	40	8	5	93	75	3	36	35	255	53		.373	.517	.976	148	60.3	.464	151	51.1
7	Roger Connor R. Connor	.450	573	1890	NYP	123	484	133	169	24	15	14	103	88	1	32	22	265	53		.349	.548	.998	150	61.8	.467	144	44.7
8	Dan Brouthers D. Brouthers	.471	597	1891	BSA	130	486	117	170	26	19	5	109	87	24	20	31	249	50		.350	.512	.983	154	66.5	.471	164	60.2
9	Billy Hamilton B. Hamilton	.453	636	1891	PHN	133	527	141	179	23	7	2	60	102	7	28	111	222	32		.340	.421	.874	144	51.1	.432	150	47.7
10	Jesse Burkett J. Burkett	.459	616	1893	CLE	125	511	145	178	25	15	6	82	98	7	23	39	251	46		.348	.491	.951	153	53.6	.455	144	46.3
11	Cupid Childs C. Childs	.463	609	1893	CLE	124	485	145	158	19	10	3	65	120	4	12	23	206	32		.326	.425	.888	143	44.7	.439	136	37.5
12	John McGraw J. McGraw	.454	597	1893	BAL	127	480	123	154	9	10	5	64	101	16	11	38	198	24		.321	.413	.866	136	39.2	.431	133	33.1
13	Cupid Childs C. Childs	.475	595	1894	CLE	118	479	143	169	21	12	2	52	107	5	11	17	220	35	4	.353	.459	.935	150	42.4	.450	131	34.4
14	Ed Delahanty E. Delahanty	.475	567	1894	PHI	116	495	148	200	39	19	4	133	60	7	16	21	289	62	5	.404	.584	1.059	161	58.3	.481	150	53.8
15	Hugh Duffy H. Duffy	.502	616	1894	BSN	125	539	160	237	51	16	18	145	66	1	15	48	374	85	10	.440	.694	1.196	203	91.3	.526	169	80.7
16	Billy Hamilton B. Hamilton	.521	702	1894	PHI	132	558	198	225	25	15	4	90	128	9	19	100	292	44	7	.403	.523	1.044	209	81.9	.495	157	76.2
17	Joe Kelley J. Kelley	.502	638	1894	BAL	129	507	165	199	48	20	6	111	107	5	36	46	305	74	19	.393	.602	1.104	194	78.6	.502	159	71.1
18	John McGraw J. McGraw	.451	630	1894	BAL	124	512	156	174	18	14	1	92	91	13	12	78	223	33	14	.340	.436	.887	145	31.3	.428	120	23.9
19	Sam Thompson S. Thompson	.465	501	1894	PHI	102	451	114	187	32	28	13	147	41	1	13	27	314	73	8	.415	.696	1.161	153	62.8	.504	162	58.7
20	Jesse Burkett J. Burkett	.482	644	1895	CLE	132	555	153	225	22	13	5	83	74	8	32	41	288	40	7	.405	.519	1.001	172	65.6	.473	152	57.2
21	Ed Delahanty E. Delahanty	.500	578	1895	PHI	116	480	149	194	49	10	11	106	86	6	31	46	296	70	6	.404	.617	1.117	174	78.7	.510	177	76.8
22	Billy Hamilton B. Hamilton	.490	629	1895	PHI	123	517	166	201	22	6	7	74	96	7	30	97	256	35	9	.389	.495	.985	167	63.2	.471	157	61.2
23	Joe Kelley J. Kelley	.456	617	1895	BAL	131	518	148	189	26	19	10	134	77	10	29	54	283	55	12	.365	.546	1.003	160	57.5	.463	150	53.5
24	Bill Lange B. Lange	.456	546	1895	CHI	123	478	120	186	27	16	10	98	55	4	24	67	275	53	9	.389	.575	1.032	146	55.3	.472	151	48.2
25	Jesse Burkett J. Burkett	.461	647	1896	CLE	133	586	160	240	27	16	6	72	49	7	19	34	317	49	5	.410	.541	1.002	163	63.9	.468	154	56.2