Since 1969, the New York Yankees have lost the most games by a team in the postseason, with 123 losses.

	TEAM	L	W	L%	G	W%	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	123	156	.441	279	.559	9,523	1,226	2,353	425	31	320	1,168	1,040	98	2,106	144	58	10,806	3,800	776	70	75	90	195	.247	.325	.399	.724
2	Dodgers	111	121	.478	232	.522	7,796	972	1,853	319	40	267	934	838	80	1,876	147	42	8,827	3,053	626	70	43	94	142	.238	.316	.392	.708
3	Braves	98	89	.524	187	.476	6,335	748	1,520	252	28	185	719	655	45	1,483	120	53	7,145	2,383	465	67	43	74	110	.240	.314	.376	.690
4	Cardinals	91	96	.487	187	.513	6,152	764	1,488	280	32	155	707	568	68	1,314	102	43	6,932	2,297	467	101	43	84	114	.242	.311	.373	.684
5	Astros	78	83	.484	161	.516	5,490	677	1,319	219	13	205	653	568	73	1,244	83	29	6,208	2,179	437	47	30	65	128	.240	.318	.397	.715
6	Red Sox	75	82	.478	157	.522	5,468	769	1,405	291	23	176	732	587	53	1,164	63	21	6,189	2,270	490	37	44	58	136	.257	.332	.415	.748
7	Phillies	63	69	.477	132	.523	4,359	558	1,048	205	25	149	531	471	45	976	92	32	4,949	1,750	379	44	30	63	88	.240	.319	.401	.720
8	Athletics	63	61	.508	124	.492	4,114	436	960	177	18	109	410	409	35	887	90	31	4,631	1,500	304	48	25	40	74	.233	.306	.365	.671
9	Guardians	58	56	.509	114	.491	3,859	470	894	166	13	121	442	387	46	965	86	21	4,351	1,449	300	34	25	33	80	.232	.307	.375	.683
10	Giants	48	58	.453	106	.547	3,567	434	857	140	21	99	411	332	22	823	38	26	4,002	1,336	260	52	29	52	51	.240	.307	.375	.681
11	Cubs	46	32	.590	78	.410	2,581	282	580	108	12	90	274	230	28	680	43	13	2,878	982	210	26	13	25	52	.225	.294	.380	.674
12	Mets	46	59	.438	105	.562	3,612	452	854	139	13	100	425	372	41	787	69	19	4,100	1,319	252	43	32	46	65	.236	.312	.365	.677
13	Orioles	45	48	.484	93	.516	3,164	383	741	129	5	99	365	298	24	628	29	22	3,529	1,177	233	18	25	29	67	.234	.303	.372	.675
14	Blue Jays	44	41	.518	85	.482	2,961	389	775	145	14	88	370	270	30	574	63	17	3,305	1,212	247	16	28	27	62	.262	.327	.409	.736
15	Twins	44	25	.638	69	.362	2,354	251	566	108	17	61	239	218	27	536	43	17	2,631	891	186	17	15	21	48	.240	.310	.379	.689
16	Tigers	41	43	.488	84	.512	2,823	304	666	125	6	88	290	265	30	665	41	17	3,161	1,067	219	31	12	24	68	.236	.307	.378	.685
17	Brewers	38	25	.603	63	.397	2,060	217	480	97	7	56	204	178	21	504	29	12	2,292	759	160	15	18	17	40	.233	.298	.368	.667
18	Padres	37	25	.597	62	.403	2,053	228	491	77	8	61	214	179	21	481	25	14	2,288	767	146	15	20	11	39	.239	.304	.374	.678
19	Angels	37	27	.578	64	.422	2,210	275	575	103	10	62	264	161	25	384	34	18	2,449	884	175	36	17	20	44	.260	.315	.400	.715
20	Royals	37	43	.463	80	.538	2,701	334	684	116	22	59	320	236	20	525	67	37	3,012	1,021	197	25	30	23	50	.253	.315	.378	.693
21	Rays	36	28	.563	64	.438	2,135	253	476	79	8	95	248	184	18	641	39	14	2,349	856	182	5	7	9	43	.223	.289	.401	.690
22	Reds	36	39	.480	75	.520	2,520	277	595	107	19	60	266	230	14	498	78	27	2,814	920	186	24	26	39	48	.236	.301	.365	.666
23	Pirates	36	28	.563	64	.438	2,124	212	502	96	11	45	202	195	17	420	26	15	2,380	755	152	28	16	33	32	.236	.304	.355	.659
24	Rangers	35	34	.507	69	.493	2,365	301	565	108	6	84	286	220	19	518	39	17	2,632	937	198	16	12	22	52	.239	.307	.396	.704
25	Diamondbacks	29	28	.509	57	.491	1,920	235	476	76	10	65	231	183	21	482	40	13	2,160	767	151	25	11	21	43	.248	.319	.399	.718