Since June 3, 2023, the Chicago White Sox have the worst on-base percentage by a team, with an on-base percentage of .284.

	TEAM	OBP	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	.284	299	.294	88	211	9,973	1,018	2,248	427	16	270	974	748	81	2,623	171	57	10,885	3,517	713	32	51	20	217	.225	.353	.636
2	Angels	.301	298	.399	119	179	9,923	1,207	2,287	427	38	361	1,139	882	143	2,742	196	76	11,036	3,873	826	22	66	31	204	.230	.390	.691
3	Rockies	.301	299	.338	101	198	10,071	1,242	2,401	499	58	320	1,188	828	108	2,997	157	56	11,110	3,976	877	31	72	29	222	.238	.395	.696
4	Athletics	.302	300	.420	126	174	9,987	1,178	2,333	442	40	355	1,132	905	107	2,708	206	48	11,108	3,920	837	37	72	16	221	.234	.393	.695
5	Pirates	.305	303	.446	135	168	10,185	1,223	2,377	457	40	289	1,181	969	110	2,792	200	48	11,373	3,781	786	30	79	26	193	.233	.371	.676
6	Tigers	.305	304	.526	160	144	10,234	1,318	2,438	448	78	328	1,267	915	100	2,754	142	41	11,338	4,026	854	19	70	20	181	.238	.393	.698
7	Royals	.305	302	.477	144	158	10,097	1,308	2,500	488	69	300	1,269	777	110	2,288	284	83	11,131	4,026	857	38	109	33	178	.248	.399	.704
8	Giants	.307	302	.507	153	149	10,079	1,272	2,358	487	44	311	1,212	978	114	2,681	114	38	11,278	3,866	842	26	81	34	214	.234	.384	.690
9	Marlins	.307	299	.431	129	170	10,202	1,236	2,550	477	40	291	1,180	769	99	2,494	192	63	11,189	3,980	808	42	77	32	229	.250	.390	.697
10	Nationals	.308	302	.440	133	169	10,110	1,263	2,471	498	41	277	1,191	821	135	2,249	358	104	11,186	3,882	816	45	75	16	199	.244	.384	.692
11	Guardians	.311	300	.543	163	137	10,023	1,295	2,455	483	39	314	1,226	869	138	2,207	275	80	11,147	3,958	836	31	86	58	198	.245	.395	.706
12	Rays	.311	300	.517	155	145	10,084	1,255	2,428	477	41	302	1,190	919	146	2,708	302	84	11,228	3,893	820	14	65	21	188	.241	.386	.698
13	Rangers	.314	303	.492	149	154	10,245	1,329	2,499	479	29	369	1,274	987	94	2,483	171	42	11,402	4,143	877	13	63	35	190	.244	.404	.719
14	Orioles	.315	300	.563	169	131	10,214	1,438	2,553	507	55	394	1,384	890	111	2,549	185	44	11,316	4,352	956	18	83	25	164	.250	.426	.741
15	Reds	.315	302	.500	151	151	10,076	1,396	2,407	470	59	365	1,327	977	167	2,730	386	88	11,314	4,090	894	30	64	15	171	.239	.406	.721
16	Blue Jays	.318	300	.493	148	152	10,077	1,265	2,459	525	39	301	1,204	980	144	2,330	151	46	11,301	3,965	865	22	78	32	230	.244	.393	.711
17	Cardinals	.319	301	.482	145	156	10,231	1,274	2,545	486	29	328	1,220	964	123	2,437	176	54	11,427	4,073	843	29	80	25	202	.249	.398	.717
18	Mets	.319	301	.518	156	145	10,134	1,400	2,465	489	35	395	1,344	969	185	2,549	205	36	11,380	4,209	919	23	69	26	203	.243	.415	.734
19	Twins	.320	301	.508	153	148	10,181	1,389	2,503	541	44	368	1,324	958	181	2,651	145	43	11,414	4,236	953	17	77	23	217	.246	.416	.736
20	Red Sox	.320	304	.487	148	156	10,468	1,409	2,652	594	50	353	1,346	931	135	2,824	268	71	11,622	4,405	997	15	73	50	201	.253	.421	.741
21	Mariners	.321	300	.547	164	136	10,040	1,353	2,370	457	23	383	1,290	1,071	214	2,959	261	57	11,414	4,022	863	23	66	27	187	.236	.401	.721
22	Yankees	.324	299	.538	161	138	9,970	1,398	2,395	449	27	423	1,344	1,177	97	2,566	170	51	11,352	4,167	899	20	88	42	240	.240	.418	.742
23	Cubs	.324	303	.535	162	141	10,278	1,513	2,561	502	61	351	1,443	1,038	139	2,517	283	56	11,577	4,238	914	34	88	29	166	.249	.412	.736
24	Brewers	.325	302	.570	172	130	10,160	1,444	2,501	481	49	304	1,368	1,116	102	2,617	339	69	11,479	3,992	834	29	72	36	211	.246	.393	.718
25	Braves	.326	300	.583	175	125	10,263	1,502	2,653	513	37	465	1,444	950	110	2,535	185	43	11,411	4,635	1,015	13	75	24	220	.259	.452	.777