Andrew Vaughn has the worst on-base percentage this season, with an on-base percentage of .218.

Interpreted as:

lowest obp with a minimum of 3.1 PA per team game by a player in the MLB this regular season

	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	Andrew Vaughn A. Vaughn	.218	2025	CWS	48	185	9	35	8	0	5	19	7	0	43	0	0	193	58	13	0	1	0	4	.189	.314	.531	10	-12.3	.233	44	-12
2	Michael Massey M. Massey	.228	2025	KCR	51	184	10	39	5	0	2	14	4	1	29	1	0	194	50	7	1	4	0	3	.212	.272	.500	8	-14.4	.220	31	-15
3	Joey Ortiz J. Ortiz	.246	2025	MIL	55	172	18	31	5	0	2	7	13	2	31	5	2	191	42	7	4	0	0	4	.180	.244	.490	9	-13.2	.227	39	-13.7
4	Luis Rengifo L. Rengifo	.254	2025	LAA	50	171	14	38	7	0	1	11	8	0	29	1	3	182	48	8	1	2	0	5	.222	.281	.535	10	-10.8	.239	47	-10.7
5	Adolis García A. García	.256	2025	TEX	56	197	16	41	11	0	7	27	11	3	57	5	2	215	73	18	0	4	0	2	.208	.371	.626	18	-6.8	.274	74	-6.3
6	Michael Harris II M. Harris II	.259	2025	ATL	55	210	12	48	10	2	3	32	10	0	42	9	2	226	71	15	2	4	1	2	.229	.338	.597	16	-9.8	.259	60	-10.6
7	Marcus Semien M. Semien	.260	2025	TEX	56	196	13	34	1	0	3	18	22	2	48	3	1	223	44	4	0	3	0	4	.173	.224	.485	11	-15.1	.229	42	-14.5
8	Salvador Perez S. Perez	.260	2025	KCR	53	207	11	46	14	0	4	26	9	2	48	0	0	219	72	18	0	1	0	7	.222	.348	.608	17	-7.9	.268	65	-8.6
9	Trevor Story T. Story	.263	2025	BOS	54	211	22	46	3	0	6	21	10	3	67	9	0	225	67	9	1	0	0	0	.218	.318	.581	16	-9.5	.261	59	-10.5
10	Josh Bell J. Bell	.264	2025	WSH	46	157	16	26	1	1	7	16	19	2	40	0	1	178	50	9	0	0	0	6	.166	.318	.583	14	-6.8	.265	66	-7.1
11	Taylor Ward T. Ward	.265	2025	LAA	54	211	32	46	11	1	15	37	15	0	64	1	1	230	104	27	0	4	1	3	.218	.493	.758	28	1.2	.321	105	1.3
12	Dylan Crews D. Crews	.266	2025	WSH	45	158	24	31	2	1	7	15	11	4	48	11	3	173	56	10	0	0	0	0	.196	.354	.620	15	-5	.277	74	-5.3
13	Jackson Chourio J. Chourio	.270	2025	MIL	56	241	31	58	16	1	8	29	9	1	55	9	3	252	100	25	0	1	0	6	.241	.415	.685	26	-3.3	.297	87	-3.9
14	Michael Toglia M. Toglia	.271	2025	COL	53	182	14	36	9	1	6	20	18	1	79	2	0	203	65	16	0	2	2	4	.198	.357	.628	17	-6.3	.275	59	-9.9
15	Austin Wells A. Wells	.271	2025	NYY	47	155	18	32	9	1	8	31	13	3	41	3	0	177	67	18	0	6	0	5	.206	.432	.703	19	-1.7	.302	94	-1.3
16	Anthony Santander A. Santander	.273	2025	TOR	50	184	14	33	5	0	6	18	24	0	55	0	0	209	56	11	0	1	1	6	.179	.304	.577	15	-8.6	.262	66	-7.9
17	Ryan Mountcastle R. Mountcastle	.274	2025	BAL	51	184	18	44	13	0	2	15	8	2	46	0	0	197	63	15	0	3	0	6	.239	.342	.617	16	-6.6	.272	75	-5.6
18	Yainer Diaz Y. Diaz	.275	2025	HOU	49	183	19	43	6	1	6	23	8	2	37	0	1	193	69	13	0	0	0	5	.235	.377	.652	18	-4.1	.287	85	-3.3
19	Luis Robert Jr. L. Robert Jr.	.276	2025	CWS	51	179	24	34	6	0	5	20	22	0	60	21	5	203	55	11	0	2	1	4	.190	.307	.583	15	-8.2	.263	65	-7.9
20	Christian Walker C. Walker	.277	2025	HOU	54	203	23	43	8	1	7	25	14	5	59	0	0	224	74	16	0	2	0	6	.212	.365	.641	21	-5.2	.285	83	-4.4
21	Matt McLain M. McLain	.278	2025	CIN	48	173	24	31	4	0	6	18	21	3	63	11	0	199	53	10	1	1	0	3	.179	.306	.584	16	-7.2	.268	61	-9.1
22	Brenton Doyle B. Doyle	.279	2025	COL	46	173	16	37	7	1	5	21	16	0	45	6	0	190	61	13	0	1	0	4	.214	.353	.632	17	-4.9	.281	63	-8.3
23	Yandy Díaz Y. Díaz	.281	2025	TBR	52	211	20	50	11	0	7	31	13	1	34	3	0	228	82	18	0	3	0	5	.237	.389	.669	22	-3.8	.293	92	-2.1
24	Ceddanne Rafaela C. Rafaela	.283	2025	BOS	53	177	31	41	9	2	3	20	10	3	38	7	0	193	63	14	2	1	0	0	.232	.356	.639	17	-4.7	.283	74	-5.5
25	Junior Caminero J. Caminero	.284	2025	TBR	52	203	26	52	11	0	11	32	9	0	41	3	0	215	96	22	0	3	0	16	.256	.473	.757	27	1.9	.325	114	3.4