.400 BA batting lefty against righty pitchers

No switch hitters here.  Gwynn and Hamilton throw lefty, too.

For single seasons, From 1950 to 2013, vs RHP as LHB (within Platoon Splits), (requiring batting_avg≥.400 and AB≥150), sorted by greatest Batting Average for this split

Rk	I	Player	Split	Year	G	BA	GS	PA	AB	R	H	2B	3B	HR	RBI	SB	CS	BB	SO	BA	OBP	SLG	OPS	TB	GDP	HBP	SH	SF	IBB	ROE	BAbip	tOPS+	sOPS+
1		George Brett	vs RHP as LHB	1980	100	.437		320	270		118	23	7	16	83	13	4	45	6	.437	.513	.752	1.264	203	8	1	0	4	14	2	.405	126	231
2	I	Ted Williams	vs RHP as LHB	1957	115	.408		403	309		126	23	1	32	71	0	1	88	28	.408	.541	.799	1.340	247	8	4	0	2	26	5	.375	112	248
3		Tony Gwynn	vs RHP as LHB	1994	100	.404		320	280		113	23	1	10	47	4	0	35	8	.404	.466	.600	1.066	168	11	1	0	4	14	4	.387	108	172
4		Josh Hamilton	vs RHP as LHB	2010	119	.401		389	352		141	35	2	24	77	8	1	30	54	.401	.447	.716	1.163	252	7	3	0	4	5	5	.421	122	206

Provided by Baseball-Reference.com: View Play Index Tool Used
Generated 5/22/2013.