Since 2000, Barry Bonds has the best on-base percentage in a season, with an on-base percentage of .609 in 2004.

Interpreted as:

highest obp with a minimum of 3.1 PA per team game by a player in an MLB season since 2000

	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	Barry Bonds B. Bonds	.609	2004	SFG	147	373	129	135	27	3	45	101	232	9	41	6	1	617	303	75	0	3	120	5	.362	.812	1.422	185	108	.537	233	105.7
2	Barry Bonds B. Bonds	.582	2002	SFG	143	403	117	149	31	2	46	110	198	9	47	9	2	612	322	79	0	2	68	4	.370	.799	1.381	183	110	.544	244	109.9
3	Barry Bonds B. Bonds	.529	2003	SFG	130	390	111	133	22	1	45	90	148	10	58	7	0	550	292	68	0	2	61	7	.341	.749	1.278	148	80.5	.503	212	79.4
4	Barry Bonds B. Bonds	.515	2001	SFG	153	476	129	156	32	2	73	137	177	9	93	13	3	664	411	107	0	2	35	5	.328	.863	1.379	200	117.7	.537	234	116.6
5	Juan Soto J. Soto	.490	2020	WSH	47	154	39	54	14	0	13	37	41	1	28	6	2	196	107	27	0	0	12	1	.351	.695	1.185	51	26.1	.478	201	25.4
6	Jason Giambi J. Giambi	.477	2001	OAK	154	520	109	178	47	2	38	120	129	13	83	2	0	671	343	87	0	9	24	17	.342	.660	1.137	162	78.3	.465	193	78.7
7	Jason Giambi J. Giambi	.476	2000	OAK	152	510	108	170	29	1	43	137	137	9	96	2	0	664	330	73	0	8	6	9	.333	.647	1.123	163	75.5	.471	182	74.3
8	Chipper Jones C. Jones	.470	2008	ATL	128	439	82	160	24	1	22	75	90	1	61	4	0	534	252	47	0	4	16	13	.364	.574	1.044	116	51.6	.445	175	50.2
9	Carlos Delgado C. Delgado	.470	2000	TOR	162	569	115	196	57	1	41	137	123	15	104	0	1	711	378	99	0	4	18	12	.344	.664	1.134	174	81	.471	179	76
10	Todd Helton T. Helton	.469	2004	COL	154	547	115	190	49	2	32	96	127	3	72	3	0	683	339	83	0	6	19	12	.347	.620	1.088	156	71.6	.454	166	58.1
11	Juan Soto J. Soto	.465	2021	WSH	151	502	111	157	20	2	29	95	145	2	93	9	7	654	268	51	0	5	23	23	.313	.534	.999	136	57.3	.420	164	53.2
12	Todd Helton T. Helton	.463	2000	COL	160	580	138	216	59	2	42	147	103	4	61	5	3	697	405	103	0	10	22	12	.372	.698	1.162	174	82.4	.476	161	58
13	Freddie Freeman F. Freeman	.462	2020	ATL	60	214	51	73	23	1	13	53	45	3	37	2	0	262	137	37	0	0	7	6	.341	.640	1.102	63	30.1	.456	186	28.8
14	Albert Pujols A. Pujols	.462	2008	STL	148	524	100	187	44	0	37	116	104	5	54	7	3	641	342	81	0	8	34	16	.357	.653	1.114	146	69.1	.459	185	68.1
15	Bryce Harper B. Harper	.460	2015	WSH	153	521	118	172	38	1	42	99	124	5	131	6	4	654	338	81	0	4	15	15	.330	.649	1.109	151	77.3	.461	197	73.9
16	Mike Trout M. Trout	.460	2018	LAA	140	471	101	147	24	4	39	79	122	10	124	24	2	607	296	67	0	4	25	5	.312	.628	1.088	136	65.3	.447	189	64.4
17	Joey Votto J. Votto	.459	2015	CIN	158	545	95	171	33	2	29	80	143	5	135	11	3	695	295	64	0	2	15	11	.314	.541	1.000	141	63.1	.427	173	59.5
18	Aaron Judge A. Judge	.458	2024	NYY	158	559	122	180	36	1	58	144	133	9	171	10	0	703	392	95	0	2	20	22	.322	.701	1.159	176	93.7	.476	219	95.5
19	Todd Helton T. Helton	.458	2003	COL	160	583	135	209	49	5	33	117	111	2	72	0	4	703	367	87	0	7	21	19	.358	.630	1.088	160	73.6	.453	163	56.6
20	Manny Ramirez M. Ramirez	.457	2000	CLE	118	439	92	154	34	2	38	122	86	3	117	1	1	532	306	74	0	4	9	9	.351	.697	1.154	133	63	.477	181	58.6
21	Aaron Judge A. Judge	.457	2025	NYY	152	541	137	179	30	2	53	114	124	7	160	12	5	679	372	85	0	7	36	16	.331	.688	1.144	163	82.5	.463	203	82.7
22	Joey Votto J. Votto	.454	2017	CIN	162	559	106	179	34	1	36	100	134	8	83	5	1	707	323	71	0	6	20	16	.320	.578	1.032	150	64	.428	163	57.6
23	Brian Giles B. Giles	.450	2002	PIT	153	497	95	148	37	5	38	103	135	7	74	15	6	644	309	80	0	5	24	10	.298	.622	1.072	140	62.7	.444	174	59.5
24	Manny Ramirez M. Ramirez	.450	2002	BOS	120	436	84	152	31	0	33	107	73	8	85	0	0	518	282	64	0	1	14	13	.349	.647	1.097	119	57.1	.459	185	54.3
25	Lance Berkman L. Berkman	.450	2004	HOU	160	544	104	172	40	3	30	106	127	10	101	9	7	687	308	73	0	6	14	10	.316	.566	1.016	143	58.1	.430	161	53.9