who has the lowest on-base percentage in a season minimum 300 at bats

Bill Bergen has the worst on-base percentage with 300+ at-bats in a season, with an on-base percentage of .163 in 1909.

	NAME	OBP	AB	SEASON	TM	G	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	Bill Bergen B. Bergen	.163	346	1909	BKN	112	16	48	1	1	1	15	10	0	50	4		372	54	3	16				.139	.156	.319	1	-35.2	.159	5	-37.3
2	Bill Bergen B. Bergen	.175	353	1906	BKN	103	9	56	3	3	0	19	7	0	43	2		372	65	6	12				.159	.184	.359	5	-31.7	.176	18	-32.4
3	Jack Burdock J. Burdock	.182	325	1888	TOT	92	20	46	1	2	1	12	10	6	44	10		341	54	4					.142	.166	.348	15	-29.8	.172	31	-32.3
4	Bill Bergen B. Bergen	.189	302	1908	BKN	99	8	53	8	2	0	15	5	0	31	1		320	65	10	13				.175	.215	.404	10	-20.2	.197	34	-21.1
5	Jumbo Latham J. Latham	.197	308	1884	LOU	77	31	52	3	3	0	23	8	3				319	61	6					.169	.198	.396	24	-22.9	.187	51	-23.2
6	Ossee Schrecongost O. Schrecongost	.199	311	1904	PHA	95	23	58	9	1	1	21	5	0	16	3		326	72	11	10				.186	.232	.431	13	-20.7	.206	35	-22.3
7	Bill Bergen B. Bergen	.199	308	1901	CIN	87	15	55	6	4	1	17	8	0	40	2		326	72	11	10				.179	.234	.433	12	-30.8	.205	26	-31.9
8	Bill Kuehne B. Kuehne	.203	339	1892	TOT	89	26	57	6	5	1	40	14	1	45	7		354	76	12					.168	.224	.428	18	-28.6	.209	40	-29.6
9	Bill Bergen B. Bergen	.204	329	1904	BKN	96	17	60	4	2	0	12	9	0	49	3		347	68	6	9				.182	.207	.411	12	-23.8	.198	33	-25.7
10	Paul Casanova P. Casanova	.210	322	1968	WSH	96	19	63	6	0	4	25	7	0	52	0	1	335	81	10	1	5	1	8	.196	.252	.461	12	-18.9	.209	39	-20.3
11	Bill Bergen B. Bergen	.214	322	1902	CIN	89	19	58	8	3	0	36	14	0	47	2		342	72	11	6				.180	.224	.438	13	-26.9	.213	25	-29
12	George McBride G. McBride	.215	313	1906	SLN	90	24	53	8	2	0	13	17	1	80	5		338	65	10	7				.169	.208	.422	12	-21	.211	37	-22.7
13	Mario Mendoza M. Mendoza	.216	373	1979	SEA	148	26	74	10	3	1	29	9	1	62	3	0	401	93	14	13	5	0	12	.198	.249	.466	11	-36.3	.210	20	-39.4
14	Ed Greer E. Greer	.217	302	1886	TOT	82	35	56	6	3	1	24	10	2		16		314	71	10					.185	.235	.452	25	-21.1	.216	51	-22.9
15	Jack Ryan J. Ryan	.218	300	1901	STL	83	27	59	6	5	0	31	7	1	30	5		321	75	11	13				.197	.250	.468	15	-26.3	.221	38	-26.5
16	Rob Picciolo R. Picciolo	.218	419	1977	OAK	148	35	84	12	3	2	22	9	1	55	1	4	446	108	17	14	3	0	8	.200	.258	.475	13	-39.4	.213	28	-38.2
17	Angel Salazar A. Salazar	.219	317	1987	KCR	116	24	65	7	0	2	21	6	0	46	4	4	332	78	9	8	1	0	6	.205	.246	.465	8	-32.6	.207	19	-34.1
18	Sadie Houck S. Houck	.219	455	1886	TOT	113	43	92	11	1	0	31	6	4	28	29		465	105	12					.202	.231	.450	36	-31.7	.215	54	-31.9
19	Ed Gagnier E. Gagnier	.219	337	1914	BKF	94	22	63	12	2	0	25	13	1	24	8		360	79	14	9				.187	.234	.454	13	-24.8	.221	29	-30.1
20	Hal Lanier H. Lanier	.222	486	1968	SFG	151	37	100	14	1	0	27	12	0	57	2	2	518	116	15	14	6	0	17	.206	.239	.461	19	-28.9	.210	38	-31.5
21	Jiggs Parrott J. Parrott	.222	333	1892	CHI	78	38	67	8	5	2	22	8	1	30	7		342	91	15					.201	.273	.495	25	-20.4	.237	51	-23.5
22	Grant Briggs G. Briggs	.222	316	1890	SYR	86	44	57	6	5	0	21	16	1		7		333	73	11					.180	.231	.453	20	-31.2	.223	44	-28.2
23	Doug Flynn D. Flynn	.223	314	1977	TOT	126	14	62	7	2	0	19	11	0	29	1	3	333	73	9	5	3	2	4	.197	.232	.455	7	-31.9	.204	21	-31.8
24	George Creamer G. Creamer	.224	339	1884	PIT	98	38	62	8	5	0		16	2				357	80	13					.183	.236	.460	35	-17.4	.216	66	-18.3
25	Ed Kennedy E. Kennedy	.225	378	1884	NYM	103	49	72	6	2	1		16	1				395	85	9					.190	.225	.450	37	-20.5	.212	65	-20.8