what mlb team has the highest winning percentage all-time in modern era

Since 1900, the New York Yankees have the best winning percentage by a team, winning 57.0 percent of the time.

	TEAM	W%	W	L	G	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	.570	10,872	8,216	19,176	653,521	93,216	173,428	28,805	5,507	17,515	86,637	69,038	4,959	95,884	11,751	2,828	740,439	265,792	51,827	9,601	3,320	2,869	10,758	.265	.339	.407	.745
2	Whales	.565	173	133	312	10,231	1,262	2,634	412	127	102	1,102	964	71	1,200	332		11,614	3,606	641	348				.257	.326	.352	.678
3	Peppers	.551	168	137	312	10,273	1,347	2,757	440	170	50	1,116	908	72	1,160	457		11,678	3,687	660	425				.268	.332	.359	.691
4	Giants	.533	10,408	9,124	19,625	667,596	87,799	174,641	28,552	5,669	15,097	80,816	62,274	5,150	97,565	12,597	3,158	749,398	259,822	49,318	11,323	3,055	4,028	10,258	.262	.328	.389	.717
5	Dodgers	.532	10,393	9,139	19,627	667,249	85,594	173,945	28,372	5,733	13,836	78,907	62,645	4,477	98,357	13,457	3,566	749,711	255,291	47,941	12,242	3,098	3,759	10,016	.261	.327	.383	.709
6	Cardinals	.521	10,183	9,347	19,636	671,015	87,327	178,248	30,780	6,417	12,686	80,307	61,008	4,856	96,512	13,544	3,632	751,457	259,920	49,883	11,411	3,167	3,784	10,213	.266	.330	.387	.717
7	Red Sox	.518	10,044	9,336	19,463	666,123	90,918	177,700	33,354	5,616	14,729	84,326	67,162	4,856	96,544	9,724	2,577	752,116	266,473	53,699	10,605	3,370	3,011	11,624	.267	.337	.400	.737
8	Guardians	.513	9,940	9,443	19,474	663,602	87,976	175,517	31,326	5,512	14,035	81,330	62,968	4,877	95,572	12,004	3,410	746,317	259,972	50,873	11,484	3,386	2,569	10,578	.264	.331	.392	.723
9	Blues	.508	154	149	308	10,129	1,194	2,525	370	142	77	1,014	850	42	1,329	412		11,287	3,410	589	266				.249	.310	.337	.647
10	Cubs	.505	9,864	9,678	19,649	668,025	85,710	173,415	29,806	5,736	14,442	78,773	61,276	4,774	102,749	12,058	3,095	749,441	258,019	49,984	12,419	2,947	3,531	10,014	.260	.325	.386	.711
11	Pirates	.504	9,843	9,683	19,622	670,125	85,238	176,591	29,672	7,440	11,912	78,366	58,587	4,821	97,564	12,717	3,294	748,481	256,879	49,024	11,809	3,139	3,710	10,133	.264	.326	.383	.709
12	Tigers	.503	9,763	9,642	19,498	664,850	89,528	175,573	29,761	6,324	14,718	82,459	65,897	4,491	97,755	11,333	2,949	749,392	262,136	50,803	11,010	3,144	2,455	10,776	.264	.333	.394	.727
13	Astros	.503	5,096	5,040	10,141	344,176	43,252	87,719	16,086	2,179	8,563	40,713	32,676	2,951	63,857	7,210	3,151	386,581	133,852	26,828	4,038	2,740	3,154	7,496	.255	.322	.389	.711
14	Blue Jays	.500	3,855	3,856	7,714	264,282	35,737	68,775	13,744	1,503	8,407	33,909	24,510	2,472	49,724	4,621	1,979	294,945	110,746	23,654	1,526	2,155	1,418	6,026	.260	.326	.419	.745
15	White Sox	.498	9,654	9,714	19,471	659,233	84,558	171,086	28,385	5,559	12,414	77,750	62,440	5,286	93,032	13,672	3,496	742,590	247,831	46,358	12,385	3,246	2,468	10,600	.260	.327	.376	.703
16	Reds	.498	9,739	9,810	19,644	667,103	84,741	173,286	29,564	6,033	13,861	78,223	60,449	4,872	100,552	14,026	3,421	747,518	256,499	49,458	12,022	3,072	3,657	9,796	.260	.324	.384	.709
17	Rebels	.495	150	153	310	10,154	1,197	2,657	360	170	54	1,027	858	77	1,085	377		11,485	3,519	584	396				.262	.324	.347	.670
18	Angels	.495	5,093	5,205	10,301	349,413	44,557	89,283	15,434	1,822	9,375	41,937	32,685	2,891	63,909	6,113	3,120	391,331	136,486	26,631	3,547	2,795	2,500	7,947	.256	.322	.391	.713
19	Braves	.491	9,570	9,932	19,613	666,938	82,958	171,753	28,305	4,866	14,340	76,636	60,592	4,464	98,189	10,567	3,083	746,904	252,810	47,511	12,004	2,906	3,665	10,451	.258	.322	.379	.701
20	Brewers	.489	4,405	4,595	9,004	305,685	40,111	78,316	14,603	1,769	8,831	37,997	29,442	2,763	59,793	6,086	2,770	343,521	122,950	25,203	3,177	2,454	2,167	6,682	.256	.325	.402	.727
21	Rays	.489	2,168	2,264	4,432	150,671	19,700	38,234	7,596	863	4,634	18,741	14,287	1,709	34,410	3,343	1,261	168,604	61,458	13,093	753	1,184	695	3,101	.254	.323	.408	.731
22	Diamondbacks	.489	2,167	2,267	4,434	151,251	20,296	38,521	7,894	1,095	4,759	19,348	14,724	1,482	33,571	2,585	930	170,060	62,882	13,748	1,354	1,249	1,105	3,158	.255	.324	.416	.740
23	Terriers	.489	149	156	313	10,223	1,199	2,598	392	146	49	1,026	1,079	70	1,150	308		11,783	3,429	587	411				.254	.329	.335	.665
24	Packers	.487	148	156	307	10,064	1,191	2,575	426	143	67	1,040	767	82	1,091	315		11,264	3,488	636	351				.256	.314	.347	.660
25	Athletics	.486	9,405	9,945	19,437	658,868	85,814	169,575	29,417	5,342	14,300	79,101	64,867	4,768	100,062	12,164	3,228	742,328	252,576	49,059	10,697	3,128	2,281	10,691	.257	.327	.383	.710