highest batting average in a season by a switch hitting first baseman

Tommy Tucker has the best batting average by a switch-hitting first baseman in a season, with an average of .372 in 1889.

Interpreted as:

highest batting average with a minimum of 3.1 PA per team game in a season by a switch hitting first baseman

	NAME	AVG	SEASON	TM	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	OBP	SLG	OPS	WRC	WRAA	WOBA	WRC+	BRAA
1	Tommy Tucker T. Tucker	.372	1889	BAL	134	527	103	196	22	11	5	99	42	33	26	63		602	255	38					.450	.484	.934	149	56.2	.446	158	55.3
2	Gregg Jefferies G. Jefferies	.342	1993	STL	142	544	89	186	24	3	16	83	62	2	32	46	9	612	264	43	0	4	7	15	.408	.485	.894	107	33.6	.395	143	32.6
3	Ripper Collins R. Collins	.333	1934	SLN	154	600	116	200	40	12	35	128	57	2	50	2		662	369	87	3			11	.393	.615	1.008	139	55.4	.445	161	51.6
4	Pete Rose P. Rose	.331	1979	PHI	163	628	90	208	40	5	4	59	95	2	32	20	11	730	270	49	0	5	10	18	.418	.430	.848	118	32.7	.381	134	29.2
5	Tommy Tucker T. Tucker	.330	1894	BSN	123	500	112	165	24	6	3	100	53	17	21	18		572	210	33	2				.412	.420	.832	115	11.1	.398	101	1.3
6	John Anderson J. Anderson	.330	1901	MIL	138	576	90	190	46	7	8	99	24	3	21	35		607	274	61	4				.360	.476	.836	107	28.3	.387	126	22.4
7	Eddie Murray E. Murray	.330	1990	LAD	155	558	96	184	22	3	26	95	82	1	64	8	5	645	290	51	0	4	21	19	.414	.520	.934	116	43.7	.407	156	42.1
8	Gregg Jefferies G. Jefferies	.325	1994	STL	103	397	52	129	27	1	12	55	45	1	26	12	5	447	194	40	0	4	12	9	.391	.489	.880	73	16.3	.376	128	15.8
9	Pete Rose P. Rose	.325	1981	PHI	107	431	73	140	18	5	0	33	46	3	26	4	4	484	168	23	1	3	5	8	.391	.390	.781	66	15.3	.357	124	12.9
10	Dmitri Young D. Young	.320	2007	WSH	136	460	57	147	38	1	13	74	44	1	74	0	0	508	226	52	0	3	6	13	.378	.491	.869	81	18.6	.375	127	18
11	Wes Parker W. Parker	.319	1970	LAD	161	614	84	196	47	4	10	111	79	0	70	8	2	705	281	61	4	8	18	14	.392	.458	.850	109	29.3	.373	130	26.1
12	Eddie Murray E. Murray	.316	1982	BAL	151	550	87	174	30	1	32	110	70	1	82	7	2	627	302	63	0	6	18	17	.391	.549	.940	112	41.8	.404	153	39.4
13	Lance Berkman L. Berkman	.315	2006	HOU	152	536	95	169	29	0	45	136	98	4	106	3	2	646	333	74	0	8	22	11	.420	.621	1.041	133	52.2	.426	159	49.6
14	Candy Lachance C. Lachance	.314	1895	BKN	128	541	102	170	23	9	8	111	29	8	48	37		581	235	40	3				.358	.434	.793	100	4	.369	106	6
15	Ripper Collins R. Collins	.313	1935	SLN	150	578	109	181	36	10	23	122	65	3	45	0		647	306	69	1			5	.385	.529	.915	117	36.6	.411	140	33.4
16	Lance Berkman L. Berkman	.312	2008	HOU	159	554	114	173	46	4	29	106	99	7	108	18	4	665	314	79	0	5	18	13	.420	.567	.986	129	48.6	.417	156	46.8
17	Walter Holke W. Holke	.311	1923	PHN	147	562	64	175	31	4	7	70	16	0	37	7	9	597	235	42	19				.330	.418	.749	73	-0.7	.345	82	-14.3
18	Ripper Collins R. Collins	.310	1933	SLN	132	493	66	153	26	7	10	68	38	3	49	7		542	223	43	8			13	.363	.452	.816	82	19	.376	129	18.1
19	David Segui D. Segui	.309	1995	TOT	130	456	68	141	25	4	12	68	40	3	47	2	7	510	210	41	8	3	5	10	.367	.461	.827	76	12.3	.362	117	11.2
20	Mark Teixeira M. Teixeira	.308	2008	TOT	157	574	102	177	41	0	33	121	97	7	93	2	0	685	317	74	0	7	13	17	.410	.552	.962	129	46	.410	152	44.4
21	Dan McGann D. McGann	.308	1902	TOT	129	477	65	147	15	15	0	63	31	14	30	29		536	192	30	14				.368	.403	.770	82	18.7	.369	120	13
22	Lu Blue L. Blue	.308	1921	DET	153	585	103	180	33	11	5	75	103	5	47	13	17	709	250	49	16				.416	.427	.843	116	27.7	.396	120	19.2
23	Candy Lachance C. Lachance	.308	1897	BKN	126	520	86	160	28	16	4	90	15	5	38	26		548	232	48	8				.333	.446	.779	85	2.4	.359	104	3.6
24	Augie Galan A. Galan	.307	1945	BKN	152	576	114	177	36	7	9	92	114	2	27	13		696	254	52	4			10	.423	.441	.864	118	42.6	.413	140	33.7
25	Candy Lachance C. Lachance	.307	1899	BAL	125	472	65	145	23	10	1	75	21	10	38	31		508	191	34	5				.350	.405	.755	77	6.6	.360	104	2.9