Buck Gladmon has the worst OPS in a season, with an OPS of .397 in his rookie season in 1884.

Interpreted as:

worst ops with a minimum of 3.1 PA per team game by a player in MLB season

	NAME	OPS	SEASON	TM	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	WRC	WRAA	WOBA	WRC+	BRAA
1	Buck Gladmon B. Gladmon	.397	1884	WSA	56	224	17	35	5	3	1		3	3				230	49	9					.156	.178	.219	16	-17.2	.183	51	-16.7
2	Jeimer Candelario J. Candelario	.410	2025	CIN	22	80	3	9	2	0	2	10	9	0	29	0	1	91	17	4	0	2	0	1	.113	.198	.213	2	-8.7	.192	11	-9.7
3	Michael Massey M. Massey	.443	2025	KCR	26	92	4	18	3	0	0	9	2	1	18	0	0	99	21	3	1	3	0	2	.196	.214	.228	2	-9	.198	16	-9.1
4	Marcus Semien M. Semien	.449	2025	TEX	28	103	6	16	1	0	2	12	10	0	23	0	1	115	23	3	0	2	0	3	.155	.226	.223	4	-9.4	.209	30	-8.9
5	Bobby Byrne B. Byrne	.450	1908	SLN	127	439	27	84	7	1	0	14	23	4	59	16		490	93	8	24				.191	.238	.212	23	-22.2	.225	48	-25.4
6	Sadie Houck S. Houck	.450	1886	TOT	113	455	43	92	11	1	0	31	6	4	28	29		465	105	12					.202	.219	.231	36	-31.7	.215	54	-31.9
7	Ed Kennedy E. Kennedy	.450	1884	NYM	103	378	49	72	6	2	1		16	1				395	85	9					.190	.225	.225	37	-20.5	.212	65	-20.8
8	George Creamer G. Creamer	.460	1884	PIT	98	339	38	62	8	5	0		16	2				357	80	13					.183	.224	.236	35	-17.4	.216	66	-18.3
9	Hal Lanier H. Lanier	.461	1968	SFG	151	486	37	100	14	1	0	27	12	0	57	2	2	518	116	15	14	6	0	17	.206	.222	.239	19	-28.9	.210	38	-31.5
10	Hunter Hill H. Hill	.462	1904	TOT	135	509	37	104	9	1	0	31	17	4	42	14		554	115	10	24				.204	.236	.226	28	-28.1	.225	52	-28.2
11	Pete Childs P. Childs	.462	1902	PHN	123	403	25	78	5	0	0	25	34	0	31	6		447	83	5	10				.194	.256	.206	24	-28.5	.234	48	-26.1
12	Joey Ortiz J. Ortiz	.468	2025	MIL	28	95	11	17	3	0	0	5	9	1	16	2	0	107	20	3	2	0	0	4	.179	.257	.211	5	-7.6	.222	36	-8.1
13	Ben Conroy B. Conroy	.470	1890	PHA	117	404	45	69	13	1	0	21	45	5		17		454	84	14					.171	.262	.208	36	-34	.246	52	-33.4
14	Bill Hallman B. Hallman	.473	1901	TOT	128	464	48	86	13	5	0	41	28	4	42	13		525	109	18	29				.185	.238	.235	29	-39	.231	43	-39.5
15	Andrew Vaughn A. Vaughn	.476	2025	CWS	26	102	6	16	3	0	3	11	6	0	23	0	0	109	28	6	0	1	0	3	.157	.202	.275	4	-8.6	.213	32	-8.2
16	Jim Levey J. Levey	.477	1933	SLA	141	529	43	103	10	4	2	36	26	3	68	4	6	567	127	16	9				.195	.237	.240	21	-44.5	.227	23	-58.3
17	Fred Raymer F. Raymer	.479	1905	BSN	137	498	26	105	14	2	0	31	8	6	47	15		522	123	16	10				.211	.232	.247	29	-26.4	.233	46	-33.3
18	Milt Scott M. Scott	.481	1886	BAL	137	484	48	92	11	4	2	52	22	9		11		515	117	17					.190	.239	.242	48	-27.6	.234	64	-27.2
19	Jim Donnelly J. Donnelly	.482	1888	WSH	122	428	43	86	9	4	0	23	20	3	16	44		451	103	13					.201	.242	.241	40	-19.3	.233	69	-19.4
20	Bill Greenwood B. Greenwood	.484	1888	BAL	115	409	69	78	13	1	0	29	30	6	51	46		445	93	14					.191	.256	.227	41	-17	.239	70	-18.3
21	Ollie O'Mara O. O'Mara	.484	1918	BKN	121	450	29	96	8	1	1	24	7	10	18	11		489	109	10	22				.213	.242	.242	23	-24.9	.239	44	-27.6
22	John Gochnaur J. Gochnaur	.485	1902	CLE	127	459	45	85	16	4	0	37	38	0	25	7		506	109	20	9				.185	.247	.237	30	-29.8	.240	45	-38.1
23	Jim Canavan J. Canavan	.488	1892	CHI	118	439	48	73	10	11	0	32	48	0	48	33		487	105	21					.166	.248	.239	39	-26.1	.246	55	-30.5
24	Germany Smith G. Smith	.488	1897	BKN	112	428	47	86	17	3	0	29	14	4	23	1		453	109	20	7				.201	.233	.255	22	-46.5	.235	36	-45.5
25	Joe Dugan J. Dugan	.488	1918	PHA	121	411	26	80	11	3	3	34	16	3	55	4		447	106	17	17				.195	.230	.258	21	-22.3	.241	43	-26.5