The New York Yankees had their best record in a postseason 6 times, with a record of 4-0.

Interpreted as:

yankees alltime record in a season playoff record

	TEAM	REC	SEASON	W%	G	W	L	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Yankees	4-0	1950	1.000	4	4	0	135	11	30	3	1	2	10	13	1	12	1	1	151	41	6	2		1	0	.222	.295	.304	.599
2	Yankees	4-0	1939	1.000	4	4	0	131	20	27	4	1	7	18	9	0	20	0	0	142	54	12	2		1	1	.206	.257	.412	.669
3	Yankees	4-0	1938	1.000	4	4	0	135	22	37	6	1	5	21	11	1	16	3	2	148	60	12	1		1	2	.274	.333	.444	.778
4	Yankees	4-0	1932	1.000	4	4	0	144	37	45	6	0	8	36	23	4	26	0	2	172	75	14	1		3	5	.313	.421	.521	.942
5	Yankees	4-0	1928	1.000	4	4	0	134	27	37	7	0	9	25	13	1	13	4	0	151	71	16	3		0	3	.276	.345	.530	.874
6	Yankees	4-0	1927	1.000	4	4	0	136	23	38	6	2	2	19	13	1	25	2	0	152	54	10	2		1	2	.279	.347	.397	.744
7	Yankees	11-1	1999	.917	12	11	1	411	58	102	15	2	15	54	41	2	94	8	2	460	166	32	6	0	8	4	.248	.319	.404	.723
8	Yankees	11-2	1998	.846	13	11	2	427	62	109	19	1	14	58	62	4	95	12	5	502	172	34	5	4	5	14	.255	.352	.403	.755
9	Yankees	4-1	1961	.800	5	4	1	165	27	42	8	1	7	26	24	0	25	1	1	193	73	16	3	1	5	4	.255	.347	.442	.790
10	Yankees	4-1	1949	.800	5	4	1	164	21	37	10	2	2	20	18	0	27	2	0	185	57	14	3		1	0	.226	.302	.348	.650
11	Yankees	4-1	1943	.800	5	4	1	159	17	35	5	2	2	14	12	0	30	2	0	175	50	9	4		3	4	.220	.275	.314	.589
12	Yankees	4-1	1941	.800	5	4	1	166	17	41	5	1	2	16	23	2	18	2	2	191	54	8	0		3	4	.247	.346	.325	.671
13	Yankees	4-1	1937	.800	5	4	1	169	28	42	6	4	4	25	21	1	21	0	0	193	68	14	2		4	4	.249	.335	.402	.737
14	Yankees	11-4	2009	.733	15	11	4	522	80	134	24	2	20	75	65	9	125	7	3	605	222	46	5	4	7	9	.257	.347	.425	.772
15	Yankees	11-4	1996	.733	15	11	4	522	61	130	19	2	16	55	59	5	100	8	3	593	201	37	5	2	6	13	.249	.330	.385	.715
16	Yankees	7-3	1978	.700	10	7	3	362	55	110	11	1	8	52	23	2	58	5	3	389	147	20	1	1	2	7	.304	.348	.406	.754
17	Yankees	11-5	2000	.688	16	11	5	551	69	145	30	3	11	68	66	7	116	6	6	636	214	44	3	9	11	10	.263	.344	.388	.733
18	Yankees	4-2	1953	.667	6	4	2	201	33	56	6	4	9	32	25	4	43	2	4	234	97	19	4		2	2	.279	.370	.483	.852
19	Yankees	4-2	1951	.667	6	4	2	199	29	49	7	2	5	25	26	1	23	0	2	226	75	14	0		3	3	.246	.336	.377	.713
20	Yankees	4-2	1936	.667	6	4	2	215	43	65	8	1	7	41	26	1	35	1	5	245	96	16	3		1	3	.302	.380	.447	.827
21	Yankees	4-2	1923	.667	6	4	2	205	30	60	8	4	5	29	20	1	22	1	0	230	91	17	4		0	5	.293	.358	.444	.802
22	Yankees	7-4	1977	.636	11	7	4	380	47	96	22	0	10	42	20	2	53	3	0	410	148	32	5	3	3	5	.253	.291	.389	.681
23	Yankees	10-7	2001	.588	17	10	7	554	57	124	21	1	16	54	50	7	123	8	8	620	195	38	7	2	1	13	.224	.295	.352	.647
24	Yankees	8-6	2024	.571	14	8	6	465	67	106	20	0	22	63	76	6	121	15	2	554	192	42	2	5	7	11	.228	.341	.413	.753
25	Yankees	4-3	2020	.571	7	4	3	244	46	64	6	1	17	46	36	1	72	2	0	287	123	24	0	6	0	4	.262	.352	.504	.856