Arky Vaughan has the highest on-base percentage by a shortstop in a season, with an on-base percentage of .491 in 1935.

Interpreted as:

obp with a minimum of 3.1 PA per team game leader by a ss in a 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	Arky Vaughan A. Vaughan	.491	1935	PIT	137	499	108	192	34	10	19	99	97	7	18	4		610	303	63	7			5	.385	.607	1.098	151	75	.493	194	72.7
2	Luke Appling L. Appling	.474	1936	CWS	138	526	111	204	31	7	6	128	85	1	25	10	6	618	267	44	6				.388	.508	.981	135	54.2	.454	142	40
3	Hughie Jennings H. Jennings	.472	1896	BAL	130	521	125	209	27	9	0	121	19	51	11	70		602	254	36	11				.401	.488	.960	148	55.6	.461	154	52.2
4	Hughie Jennings H. Jennings	.463	1897	BAL	117	439	133	156	26	9	2	79	42	46	9	60		544	206	37	17				.355	.469	.932	127	44.8	.450	148	41
5	Joe Sewell J. Sewell	.456	1923	CLE	153	553	98	195	41	10	3	109	98	7	12	9	6	682	265	54	24				.353	.479	.935	134	49.9	.439	148	43.1
6	Hughie Jennings H. Jennings	.454	1898	BAL	143	534	135	175	25	11	1	87	78	46	20	28		665	225	37	7				.328	.421	.876	138	51	.434	151	46.5
7	John McGraw J. McGraw	.454	1893	BAL	127	480	123	154	9	10	5	64	101	16	11	38		597	198	24					.321	.413	.866	136	39.2	.431	133	33.1
8	Lou Boudreau L. Boudreau	.453	1948	CLE	152	560	116	199	34	6	18	106	98	2	9	3	2	676	299	58	16			15	.355	.534	.987	140	60	.455	166	57.5
9	Arky Vaughan A. Vaughan	.453	1936	PIT	156	568	122	190	30	11	9	78	118	5	21	6		701	269	50	10			7	.335	.474	.927	140	48.4	.432	156	49.8
10	Bill Dahlen B. Dahlen	.445	1894	CHI	122	507	150	182	32	14	15	108	76	3	33	43		596	287	61	10				.359	.566	1.011	154	45.8	.455	133	36.7
11	Hughie Jennings H. Jennings	.444	1895	BAL	131	529	159	204	41	7	4	125	24	32	17	53		613	271	52	28				.386	.512	.957	150	49.1	.449	143	45.1
12	Luke Appling L. Appling	.439	1949	CWS	142	492	82	148	21	5	5	58	121	0	24	7	12	619	194	31	6			23	.301	.394	.833	102	28.6	.403	130	24
13	Bill Dahlen B. Dahlen	.438	1896	CHI	125	474	137	167	30	19	9	74	64	8	36	51		573	262	58	27				.352	.553	.990	139	50.5	.456	147	42.9
14	Derek Jeter D. Jeter	.438	1999	NYY	158	627	134	219	37	9	24	102	91	12	116	19	8	739	346	70	3	6	5	12	.349	.552	.989	152	55.8	.428	157	56.1
15	Luke Appling L. Appling	.437	1935	CWS	153	525	94	161	28	6	1	71	122	0	40	12	6	654	204	35	7				.307	.389	.826	111	28.9	.396	120	18.1
16	George Shoch G. Shoch	.435	1891	MIL	34	127	29	40	7	1	1	16	18	9	5	12		154	52	9					.315	.409	.845	33	10.8	.419	129	6.9
17	Nomar Garciaparra N. Garciaparra	.434	2000	BOS	140	529	104	197	51	3	21	96	61	2	50	5	2	599	317	75	0	7	20	8	.372	.599	1.033	126	47.5	.432	154	44
18	Irv Ray I. Ray	.433	1890	BAL	38	139	28	50	6	2	1	20	15	3		11		157	63	9					.360	.453	.886	36	12	.429	146	11
19	Arky Vaughan A. Vaughan	.433	1938	PIT	148	541	88	174	35	5	7	68	104	2	21	14		650	240	47	3			8	.322	.444	.876	117	35.6	.411	149	38.8
20	Arky Vaughan A. Vaughan	.431	1934	PIT	149	558	115	186	41	11	12	94	94	2	38	10		660	285	64	6			3	.333	.511	.942	130	47.2	.430	153	45.1
21	Luke Appling L. Appling	.430	1939	CWS	148	516	82	162	16	6	0	56	105	0	37	16	9	630	190	22	9			11	.314	.368	.798	99	21.1	.385	114	12.2
22	Eddie Joost E. Joost	.429	1949	PHA	144	525	128	138	25	3	23	81	149	4	80	2	1	682	238	51	4			6	.263	.453	.883	120	39.3	.417	136	31.7
23	Joe Cronin J. Cronin	.428	1938	BSA	143	530	98	172	51	5	17	94	91	5	60	7	5	637	284	73	11				.325	.536	.964	129	48.6	.437	134	32.3
24	Honus Wagner H. Wagner	.427	1905	PIT	147	548	114	199	32	14	6	101	54	7	53	57		616	277	52	7				.363	.505	.932	122	56.8	.444	165	47.5
25	Honus Wagner H. Wagner	.423	1904	PIT	132	490	97	171	44	14	4	75	59	4	44	53		558	255	62	5				.349	.520	.944	111	53.6	.444	178	48.2