The Chicago White Sox had the worst on-base percentage by a team in 2023, with an on-base percentage of .291.

	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	White Sox	.291	2023	162	.377	61	101	5,501	641	1,308	264	13	171	617	377	52	1,424	86	22	5,975	2,111	448	16	29	19	122	.238	.384	.675
2	Athletics	.298	2023	162	.309	50	112	5,311	585	1,187	225	21	171	563	498	85	1,496	149	31	5,958	1,967	417	28	36	12	125	.223	.370	.669
3	Royals	.303	2023	162	.346	56	106	5,428	676	1,325	258	43	163	651	411	71	1,396	163	47	5,982	2,158	464	14	58	12	96	.244	.398	.700
4	Yankees	.304	2023	162	.506	82	80	5,323	673	1,207	221	15	219	650	557	47	1,427	100	30	5,972	2,115	455	9	36	18	119	.227	.397	.701
5	Tigers	.305	2023	162	.481	78	84	5,478	661	1,292	245	29	165	635	508	49	1,473	85	23	6,079	2,090	439	13	31	10	107	.236	.382	.686
6	Rockies	.310	2023	162	.364	59	103	5,496	721	1,368	305	31	163	685	447	59	1,543	76	25	6,054	2,224	499	11	41	8	124	.249	.405	.715
7	Giants	.312	2023	162	.488	79	83	5,412	674	1,271	256	13	174	651	544	81	1,492	57	16	6,093	2,075	443	17	39	19	116	.235	.383	.695
8	Guardians	.313	2023	162	.469	76	86	5,513	662	1,379	294	29	124	622	471	55	1,142	151	36	6,096	2,103	447	13	44	40	108	.250	.381	.695
9	Nationals	.314	2023	162	.438	71	91	5,522	700	1,402	279	26	151	666	423	78	1,149	127	29	6,081	2,186	456	20	38	6	112	.254	.396	.710
10	Pirates	.315	2023	162	.469	76	86	5,406	692	1,293	287	31	159	662	556	58	1,464	117	41	6,088	2,119	477	25	43	9	92	.239	.392	.707
11	Mets	.316	2023	162	.463	75	87	5,363	717	1,276	221	21	215	692	525	107	1,331	118	15	6,052	2,184	457	19	38	11	105	.238	.407	.723
12	Marlins	.316	2023	162	.519	84	78	5,497	666	1,423	258	23	166	633	430	50	1,287	86	21	6,037	2,225	447	22	38	23	159	.259	.405	.721
13	Angels	.317	2023	162	.451	73	89	5,489	739	1,346	248	26	231	708	518	79	1,524	72	31	6,140	2,339	505	8	46	27	117	.245	.426	.743
14	Brewers	.319	2023	162	.568	92	70	5,386	728	1,290	257	16	165	696	591	58	1,412	129	28	6,081	2,074	438	7	39	15	144	.240	.385	.704
15	Orioles	.321	2023	162	.623	101	61	5,495	807	1,399	309	28	183	780	512	45	1,370	114	24	6,120	2,313	520	21	47	14	114	.255	.421	.742
16	Mariners	.321	2023	162	.543	88	74	5,500	758	1,333	282	12	210	728	548	111	1,603	118	30	6,200	2,269	504	4	37	14	95	.242	.413	.734
17	Diamondbacks	.322	2023	162	.519	84	78	5,436	746	1,359	274	44	166	706	540	58	1,247	165	26	6,120	2,219	484	36	50	11	121	.250	.408	.730
18	Red Sox	.324	2023	162	.481	78	84	5,562	772	1,437	339	19	182	734	486	71	1,372	112	26	6,165	2,360	540	11	35	15	118	.258	.424	.748
19	Twins	.326	2023	162	.537	87	75	5,489	778	1,336	264	24	233	745	594	92	1,654	86	18	6,219	2,347	521	12	32	13	119	.243	.428	.753
20	Cardinals	.326	2023	162	.438	71	91	5,510	719	1,376	264	12	209	697	570	70	1,326	102	29	6,200	2,291	485	13	37	17	122	.250	.416	.742
21	Reds	.327	2023	162	.506	82	80	5,499	783	1,371	268	37	198	747	556	92	1,500	190	48	6,195	2,307	503	19	29	8	101	.249	.420	.746
22	Phillies	.327	2023	162	.556	90	72	5,541	796	1,418	291	29	220	771	539	69	1,481	141	26	6,204	2,427	540	13	42	22	110	.256	.438	.765
23	Blue Jays	.329	2023	162	.549	89	73	5,562	746	1,423	292	19	188	705	550	69	1,303	99	34	6,217	2,317	499	4	32	14	129	.256	.417	.745
24	Padres	.329	2023	162	.506	82	80	5,401	752	1,317	273	14	205	719	653	57	1,311	137	32	6,177	2,233	492	22	44	16	134	.244	.413	.743
25	Cubs	.330	2023	162	.512	83	79	5,504	819	1,399	269	30	196	786	570	77	1,391	140	34	6,218	2,316	495	15	52	11	95	.254	.421	.751