50 players are tied for the highest career on-base percentage with 1+ at-bat, with an on-base percentage of 1.000. The first three are Ryne Nelson, Connor Overton and Gregory Soto.

Interpreted as:

best obp by a player ever minimum 1 ab

	NAME	OBP	AB	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	Ryne Nelson R. Nelson	1.000	1	1	1	1	0	0	0	1	0	0	0	0	0	1	1	0	0	0	0	0	1.000	1.000	2.000	1	0.5	.891	485	0.5
2	Connor Overton C. Overton	1.000	1	6	1	1	0	0	0	2	0	0	0	0	0	1	1	0	0	0	0	0	1.000	1.000	2.000	1	0.5	.879	461	0.5
3	Gregory Soto G. Soto	1.000	2	7	0	2	0	0	0	0	0	0	0	0	0	2	2	0	0	0	0	0	1.000	1.000	2.000	1	1	.870	470	0.9
4	Cody Ege C. Ege	1.000	1	5	0	1	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0	0	1.000	1.000	2.000	1	0.5	.878	476	0.5
5	Jose Torres J. Torres	1.000	1	61	1	1	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0	0	1.000	1.000	2.000	1	0.5	.877	463	0.5
6	Keith Hessler K. Hessler	1.000	1	35	0	1	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0	0	1.000	1.000	2.000	1	0.5	.881	481	0.4
7	Branden Pinder B. Pinder	1.000	1	2	0	1	1	0	0	1	0	0	0	0	0	1	2	1	0	0	0	0	1.000	2.000	3.000	1	0.8	1.256	747	0.7
8	Gus Schlosser G. Schlosser	1.000	1	14	0	1	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0	0	1.000	1.000	2.000	1	0.4	.892	494	0.4
9	Andrew Albers A. Albers	1.000	1	1	0	1	0	0	0	1	0	0	0	0	0	3	1	0	2	0	0	0	1.000	1.000	2.000	2	1.4	.877	483	1.4
10	Will Smith W. Smith	1.000	1	227	0	1	0	0	0	2	0	0	0	0	0	2	1	0	1	0	0	0	1.000	1.000	2.000	1	1	.870	459	0.9
11	Jeremy Horst J. Horst	1.000	1	12	0	1	0	0	0	1	0	0	0	0	0	1	1	0	0	0	0	0	1.000	1.000	2.000	1	0.5	.890	490	0.5
12	Brian Schlitter B. Schlitter	1.000	1	57	0	1	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0	0	1.000	1.000	2.000	1	0.4	.892	494	0.4
13	Bobby Korecky B. Korecky	1.000	1	2	0	1	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0	0	1.000	1.000	2.000	1	0.5	.896	480	0.5
14	Evan Meek E. Meek	1.000	1	66	0	1	0	0	0	0	0	0	0	0	0	2	1	0	1	0	0	0	1.000	1.000	2.000	1	0.9	.895	482	0.9
15	Matt Tupman M. Tupman	1.000	1	1	0	1	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0	0	1.000	1.000	2.000	1	0.5	.896	476	0.5
16	David Davidson D. Davidson	1.000	1	1	0	1	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0	0	1.000	1.000	2.000	1	0.5	.895	477	0.5
17	Scott Munter S. Munter	1.000	1	67	1	1	1	0	0	1	0	0	0	0	0	2	2	1	1	0	0	0	1.000	2.000	3.000	1	0.8	1.241	345	0.8
18	Cliff Bartosh C. Bartosh	1.000	1	18	0	1	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0	0	1.000	1.000	2.000	1	0.5	.890	464	0.5
19	Shawn Camp S. Camp	1.000	1	7	0	1	0	0	0	0	0	0	0	0	0	2	1	0	1	0	0	0	1.000	1.000	2.000	1	0.5	.895	243	0.5
20	Travis Hughes T. Hughes	1.000	1	8	0	1	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0	0	1.000	1.000	2.000	1	0.5	.890	464	0.5
21	Kevin Ohme K. Ohme	1.000	1	2	0	1	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0	0	1.000	1.000	2.000	1	0.5	.891	465	0.5
22	Jason Roach J. Roach	1.000	2	1	0	2	0	0	0	0	0	0	0	0	0	2	2	0	0	0	0	0	1.000	1.000	2.000	1	0.9	.891	466	0.9
23	Brandon Lyon B. Lyon	1.000	1	81	1	1	1	0	0	1	1	0	0	0	0	2	2	1	0	0	0	0	1.000	2.000	3.000	1	1.1	.989	544	1.1
24	Justin Brunette J. Brunette	1.000	1	4	0	1	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0	0	1.000	1.000	2.000	1	0.5	.900	456	0.5
25	Eric Cammack E. Cammack	1.000	1	8	0	1	0	1	0	1	0	0	0	0	0	1	3	1	0	0	0	0	1.000	3.000	4.000	1	1.1	1.554	877	1.1