Since 1903, the New York Yankees have the highest 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	.536	10,248	8,873	19,202	653,401	86,137	171,002	28,061	5,528	15,049	79,456	61,348	5,009	96,098	12,041	3,158	733,875	255,266	48,638	11,062	3,055	4,028	10,258	.262	.328	.391	.719
5	Dodgers	.531	10,157	8,965	19,207	652,665	83,470	169,881	27,820	5,510	13,759	77,122	61,593	4,293	97,151	12,860	3,566	733,615	249,998	47,089	11,966	3,098	3,759	10,016	.260	.327	.383	.710
6	Cardinals	.522	9,986	9,130	19,212	656,348	85,274	174,172	30,336	6,205	12,601	78,646	60,015	4,633	95,215	12,953	3,632	735,265	254,721	49,142	11,102	3,167	3,784	10,213	.265	.330	.388	.718
7	Red Sox	.518	9,888	9,219	19,187	656,382	89,495	174,991	32,976	5,417	14,650	83,122	66,556	4,767	95,892	9,435	2,577	741,475	262,751	53,043	10,400	3,370	3,011	11,624	.267	.337	.400	.737
8	Guardians	.514	9,817	9,294	19,199	653,929	86,624	172,805	30,881	5,376	13,990	80,225	62,417	4,794	94,897	11,739	3,410	735,814	256,408	50,247	11,288	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	.506	9,678	9,448	19,220	653,404	83,954	169,665	29,318	5,584	14,385	77,339	60,261	4,613	101,278	11,436	3,095	733,291	253,306	49,287	12,066	2,947	3,531	10,014	.260	.325	.388	.713
11	Tigers	.504	9,637	9,498	19,225	655,530	88,220	173,103	29,440	6,189	14,667	81,360	65,158	4,384	97,118	10,999	2,949	739,008	258,922	50,296	10,792	3,144	2,455	10,776	.264	.333	.395	.728
12	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
13	Pirates	.501	9,571	9,538	19,200	655,469	82,954	172,462	29,116	7,153	11,839	76,468	57,502	4,642	96,308	12,118	3,294	732,216	251,401	48,108	11,464	3,139	3,710	10,133	.263	.326	.384	.709
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	Reds	.499	9,555	9,576	19,217	652,255	82,845	169,336	29,025	5,803	13,772	76,625	59,496	4,741	99,090	13,575	3,421	731,267	251,283	48,600	11,703	3,072	3,657	9,796	.260	.325	.385	.710
16	White Sox	.497	9,497	9,601	19,196	649,854	83,064	168,535	28,042	5,420	12,368	76,557	61,554	5,188	92,317	13,127	3,496	731,938	244,521	45,830	12,096	3,246	2,468	10,600	.259	.327	.376	.703
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	.490	9,362	9,727	19,189	652,512	81,076	167,992	27,865	4,723	14,250	75,059	59,496	4,342	96,918	10,038	3,083	730,887	248,053	46,838	11,631	2,906	3,665	10,451	.257	.322	.380	.702
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	.485	9,248	9,830	19,163	649,224	84,234	166,797	28,943	5,188	14,227	77,763	64,223	4,678	99,430	11,790	3,228	731,747	248,797	48,358	10,494	3,128	2,281	10,691	.257	.327	.383	.710