best obp by a team in a single season since 1980-

Since 1980, the New York Yankees have the highest on-base percentage by a team in a season, with an on-base percentage of .374 in 1994.

	TEAM	OBP	SEASON	G	W%	W	L	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	SLG	OPS
1	Yankees	.374	1994	113	.619	70	43	3,986	670	1,155	238	16	139	632	530	31	660	55	40	4,611	1,842	393	27	37	34	112	.290	.462	.836
2	Indians	.373	1999	162	.599	97	65	5,634	1,009	1,629	309	32	209	960	743	55	1,099	147	50	6,553	2,629	550	54	67	41	136	.289	.467	.840
3	Indians	.369	1996	161	.615	99	62	5,681	952	1,665	335	23	218	904	671	43	844	160	50	6,486	2,700	576	34	57	44	164	.293	.475	.844
4	Indians	.367	2000	162	.556	90	72	5,683	950	1,639	310	30	221	889	685	51	1,057	113	34	6,512	2,672	561	41	52	27	134	.288	.470	.837
5	White Sox	.366	1994	113	.593	67	46	3,942	633	1,133	175	39	121	602	497	20	568	77	27	4,556	1,749	335	51	46	47	91	.287	.444	.810
6	Mariners	.366	1996	161	.528	85	76	5,668	993	1,625	343	19	245	954	670	75	1,052	90	39	6,517	2,741	607	46	58	57	121	.287	.484	.850
7	Yankees	.366	1999	162	.605	98	64	5,568	900	1,568	302	36	193	855	718	55	978	104	57	6,416	2,521	531	22	53	47	137	.282	.453	.819
8	Yankees	.366	2007	162	.580	94	68	5,717	968	1,656	326	32	201	929	637	78	991	123	40	6,527	2,649	559	41	54	32	138	.290	.463	.829
9	Yankees	.364	1998	162	.704	114	48	5,643	965	1,625	290	31	207	907	653	57	1,025	153	63	6,444	2,598	528	32	59	34	145	.288	.460	.825
10	Yankees	.363	2006	162	.599	97	65	5,651	930	1,608	327	21	210	902	649	72	1,053	139	35	6,455	2,607	558	34	49	43	139	.285	.461	.824
11	Mets	.363	1999	163	.595	97	66	5,572	853	1,553	297	14	181	814	717	48	994	150	61	6,454	2,421	492	63	54	53	149	.279	.434	.797
12	Tigers	.362	1993	162	.525	85	77	5,620	899	1,546	282	38	178	853	765	35	1,122	104	63	6,505	2,438	498	33	52	50	101	.275	.434	.796
13	Red Sox	.362	2007	162	.593	96	66	5,589	867	1,561	352	35	166	829	689	64	1,042	96	24	6,426	2,481	553	30	54	54	146	.279	.444	.806
14	Yankees	.362	1997	162	.593	96	66	5,710	891	1,636	325	23	161	846	676	37	954	99	58	6,527	2,490	509	34	70	51	138	.287	.436	.798
15	Yankees	.362	2009	162	.636	103	59	5,660	915	1,604	325	21	244	881	663	54	1,014	111	28	6,447	2,703	590	31	39	35	144	.283	.478	.839
16	Rockies	.362	2000	162	.506	82	80	5,660	968	1,664	320	53	161	905	601	42	907	131	61	6,453	2,573	534	75	75	64	126	.294	.455	.816
17	Giants	.362	2000	162	.599	97	65	5,519	925	1,535	304	44	226	889	709	51	1,032	79	39	6,418	2,605	574	73	66	60	131	.278	.472	.834
18	Mariners	.361	2000	162	.562	91	71	5,497	907	1,481	300	26	198	869	775	48	1,073	122	56	6,444	2,427	524	63	61	34	129	.269	.442	.803
19	Rangers	.361	1999	162	.586	95	67	5,651	945	1,653	304	29	230	897	611	29	937	111	54	6,388	2,705	563	35	62	41	147	.293	.479	.840
20	Astros	.361	2000	162	.444	72	90	5,570	938	1,547	289	36	249	900	673	83	1,129	114	52	6,444	2,655	574	57	61	57	154	.278	.477	.837
21	Indians	.361	1995	144	.694	100	44	5,028	840	1,461	279	23	207	803	542	35	766	132	53	5,684	2,407	509	31	48	40	128	.291	.479	.839
22	White Sox	.360	1996	162	.525	85	77	5,644	898	1,586	284	33	195	860	701	34	927	105	41	6,497	2,521	512	56	62	68	139	.281	.447	.807
23	Red Sox	.360	2004	162	.605	98	64	5,720	949	1,613	373	25	222	912	659	69	1,189	68	30	6,515	2,702	620	12	55	39	123	.282	.472	.832
24	Yankees	.360	1996	162	.568	92	70	5,628	871	1,621	293	28	162	830	632	41	909	96	46	6,414	2,456	483	41	72	56	153	.288	.436	.796
25	Mariners	.360	2001	162	.716	116	46	5,680	927	1,637	310	38	169	881	614	62	989	174	42	6,474	2,530	517	48	70	54	112	.288	.445	.805