mlb best win% in a season all-time 154 games

The Chicago Cubs have the best winning percentage by a team with 154+ games played in a season, winning 76.3 percent of the time in 1906.

Interpreted as:

MLB best win% in a season all-time 154 or more games

	TEAM	W%	G	SEASON	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	Cubs	.763	155	1906	116	36	5,018	704	1,316	181	71	20	539	448	45	516	283		5,742	1,699	272	231				.262	.328	.339	.667
2	Pirates	.724	154	1909	110	42	5,128	701	1,332	218	92	25	585	479	36	511	185		5,860	1,809	335	217				.260	.327	.353	.680
3	Indians	.721	156	1954	111	43	5,222	746	1,368	188	39	156	714	637	23	668	30	33	6,048	2,102	383	107	59		114	.262	.341	.403	.744
4	Mariners	.716	162	2001	116	46	5,680	927	1,637	310	38	169	881	614	62	989	174	42	6,474	2,530	517	48	70	54	112	.288	.360	.445	.805
5	Yankees	.714	155	1927	110	44	5,354	976	1,644	291	103	158	907	642	22	610	90	64	6,222	2,615	552	204				.307	.384	.488	.872
6	Cubs	.704	155	1907	107	45	4,892	571	1,224	162	48	13	450	435	48	449	235		5,570	1,521	223	195				.250	.318	.311	.628
7	Yankees	.704	162	1998	114	48	5,643	965	1,625	290	31	207	907	653	57	1,025	153	63	6,444	2,598	528	32	59	34	145	.288	.364	.460	.825
8	Yankees	.695	156	1932	107	47	5,476	1,002	1,564	279	82	160	954	765	27	526	77	66	6,344	2,487	521	76				.286	.376	.454	.830
9	Giants	.693	158	1904	106	47	5,150	744	1,347	202	65	31	564	434	79	459	283		5,828	1,772	298	165				.262	.328	.344	.673
10	Red Sox	.691	154	1912	105	47	5,071	799	1,404	269	84	29	654	565	45	586	185	182	5,872	1,928	382	191				.277	.355	.380	.735
11	Cardinals	.688	156	1942	106	48	5,422	755	1,454	282	69	60	680	551	22	505	71		6,125	2,054	411	130			90	.268	.338	.379	.717
12	Giants	.686	155	1905	105	48	5,094	778	1,392	191	88	39	642	517	90	497	291		5,839	1,876	318	138				.273	.351	.368	.719
13	Dodgers	.685	162	2022	111	51	5,526	847	1,418	325	31	212	812	607	56	1,374	98	18	6,245	2,441	568	3	53	22	85	.257	.333	.442	.775
14	Giants	.682	154	1912	103	48	5,067	823	1,451	231	89	47	716	514	69	497	319		5,802	2,001	367	152				.286	.360	.395	.755
15	Dodgers	.682	155	1953	105	49	5,373	955	1,529	274	59	208	887	655	35	686	90	47	6,138	2,545	541	75			115	.285	.366	.474	.840
16	Cardinals	.682	157	1944	105	49	5,474	772	1,507	274	59	100	722	543	27	471	37		6,168	2,199	433	124			96	.275	.344	.402	.745
17	Cardinals	.682	157	1943	105	49	5,435	679	1,515	259	72	70	638	428	19	437	40		6,055	2,128	401	173			92	.279	.334	.392	.725
18	Athletics	.680	155	1910	102	48	5,154	671	1,373	191	105	19	541	409	47	573	207		5,809	1,831	315	199				.266	.326	.355	.681
19	Cubs	.680	155	1909	104	49	4,999	632	1,227	203	60	20	496	420	31	553	187		5,696	1,610	283	246				.245	.308	.322	.630
20	Red Sox	.675	156	1946	104	50	5,318	792	1,441	268	50	109	737	687	15	661	45	36	6,126	2,136	427	106			133	.271	.356	.402	.758
21	Dodgers	.675	155	1942	104	50	5,286	742	1,398	263	34	62	678	572	14	485	81		5,991	1,915	359	119			95	.264	.338	.362	.700
22	Cubs	.675	154	1910	104	50	4,977	711	1,333	219	84	34	586	542	39	501	173		5,792	1,822	337	234				.268	.344	.366	.710
23	Orioles	.673	162	1969	109	53	5,518	779	1,465	234	29	175	722	634	43	806	82	45	6,328	2,282	438	74	59	62	138	.265	.343	.414	.756
24	Yankees	.673	163	1961	109	53	5,559	827	1,461	194	40	240	781	543	35	785	28	18	6,239	2,455	474	57	45	45	120	.263	.330	.442	.771
25	Red Sox	.669	155	1915	101	50	5,024	668	1,308	202	76	14	574	527	49	476	118	117	5,865	1,704	292	265				.260	.336	.339	.676