who had the highest batting average at age 27 having at least 100 pa

Marty Callaghan has the best career batting average by a 27-year-old player when making 100+ plate appearances, with an average of .420.

	NAME	AVG	PA	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	TB	XBH	SH	SF	IBB	GIDP	OBP	SLG	OPS
1	Marty Callaghan M. Callaghan	.420	103	32	88	15	37	5	0	0	13	11	0	4	4		42	5	4				.485	.477	.962
2	George Sisler G. Sisler	.407	692	154	631	136	257	49	18	19	123	46	2	19	42		399	86	13				.449	.632	1.082
3	Heinie Manush H. Manush	.407	689	151	622	109	253	48	20	14	133	46	0	20	11		383	82	21				.448	.616	1.063
4	Don Padgett D. Padgett	.399	257	92	233	38	93	15	3	5	53	18	1	11	1		129	23	5			11	.444	.554	.998
5	George Brett G. Brett	.391	524	118	463	83	181	37	5	22	106	52	2	25	14	8	294	64	0	7	14	13	.448	.635	1.083
6	Wade Boggs W. Boggs	.390	755	163	643	120	251	49	2	11	89	108	2	59	1	1	337	62	1	1	4	20	.479	.524	1.003
7	Rogers Hornsby R. Hornsby	.388	495	108	430	90	167	34	10	20	94	56	3	32	4		281	64	6				.462	.653	1.116
8	Al Simmons A. Simmons	.381	653	148	604	129	230	45	11	35	162	32	1	35	5		402	91	16				.413	.666	1.078
9	Goose Goslin G. Goslin	.379	528	135	456	80	173	36	10	17	104	48	4	18	16		280	63	20				.443	.614	1.057
10	Stan Musial S. Musial	.376	698	155	611	135	230	46	18	39	131	83	3	33	7		429	103	1			18	.453	.702	1.155
11	Smoky Burgess S. Burgess	.368	392	108	345	41	127	27	5	4	46	42	0	11	1	5	176	36	1	4		12	.432	.510	.942
12	Ty Cobb T. Cobb	.368	415	98	345	69	127	22	11	2		58	6	22	35		177	35	6				.467	.513	.980
13	Al Wingo A. Wingo	.363	516	128	421	102	153	31	10	6	68	80	0	33	15		222	47	15				.465	.527	.992
14	Babe Phelps B. Phelps	.363	133	49	124	17	45	7	2	5	23	9	0	10	0		71	14	0				.406	.573	.979
15	Paul Waner P. Waner	.361	670	146	592	116	214	32	18	8	78	58	4	18	18		306	58	16				.422	.517	.939
16	Larry Woodall L. Woodall	.360	125	51	111	20	40	4	2	0	17	7	0	7	1		48	6	7				.398	.432	.831
17	Babe Herman B. Herman	.359	700	157	635	125	228	54	13	26	108	53	4	63	12		386	93	8				.412	.608	1.020
18	Carl Reynolds C. Reynolds	.359	602	138	563	103	202	25	18	22	105	20	7	39	16		329	65	12				.388	.584	.973
19	Chuck Knoblauch C. Knoblauch	.358	713	155	603	132	216	42	14	18	89	90	14	71	44	14	340	74	0	6	6	15	.449	.564	1.013
20	Mickey Cochrane M. Cochrane	.357	561	130	487	110	174	42	5	10	85	55	1	18	5		256	57	18				.424	.526	.949
21	Tony Gwynn T. Gwynn	.357	661	153	572	108	204	30	12	6	50	81	2	38	54	12	276	48	2	4	28	13	.436	.483	.918
22	Ross Youngs R. Youngs	.356	612	133	526	112	187	33	12	10	74	77	3	31	11		274	55	6				.441	.521	.962
23	Lou Gehrig L. Gehrig	.355	703	152	583	142	207	39	20	34	158	106	2	64	11		388	93	12				.456	.666	1.121
24	Clyde Sukeforth C. Sukeforth	.354	262	84	237	31	84	16	2	1	33	17	0	6	8		107	19	8				.398	.451	.849
25	Billy Herman B. Herman	.353	637	137	575	96	203	43	6	7	71	46	2	24	4		279	56	14				.403	.485	.888