Since 1969, the New York Yankees have the highest winning percentage by a team, winning 56.2 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	.562	5,029	3,921	8,955	306,148	43,411	80,915	14,487	1,423	10,072	41,268	32,351	2,650	54,379	5,428	2,247	345,799	128,464	25,982	1,946	2,704	2,195	7,339	.264	.337	.420	.757
2	Dodgers	.550	4,926	4,038	8,967	304,785	39,369	78,552	13,594	1,636	8,489	37,211	29,743	2,360	57,007	6,206	2,630	343,297	120,885	23,719	3,965	2,444	2,956	6,483	.258	.326	.397	.723
3	Red Sox	.539	4,830	4,130	8,961	309,552	44,188	83,681	17,123	1,682	9,506	41,925	31,484	2,722	55,743	4,174	2,023	348,564	132,686	28,311	2,050	2,756	2,394	7,559	.270	.340	.429	.769
4	Cardinals	.526	4,710	4,245	8,963	305,085	39,763	79,799	14,685	1,975	7,435	37,469	29,489	2,528	55,852	6,817	2,849	343,236	120,739	24,095	3,586	2,548	2,981	6,797	.262	.329	.396	.725
5	Braves	.521	4,662	4,286	8,954	304,449	39,770	78,293	14,107	1,480	9,043	37,630	29,838	2,235	57,510	4,945	2,491	342,471	122,489	24,630	3,656	2,293	2,775	6,868	.257	.326	.402	.728
6	Astros	.514	4,604	4,361	8,967	304,775	39,228	78,336	14,671	1,900	7,912	36,997	29,227	2,664	57,221	6,753	2,866	342,624	120,543	24,483	3,471	2,487	2,756	6,615	.257	.325	.396	.721
7	Athletics	.512	4,588	4,376	8,964	303,737	40,471	76,498	14,045	1,404	9,176	38,183	31,679	2,650	58,547	6,243	2,615	343,009	120,879	24,625	2,373	2,570	1,814	6,856	.252	.325	.398	.723
8	Reds	.508	4,557	4,406	8,970	304,523	40,079	78,042	14,714	1,700	8,924	37,785	30,398	2,648	61,331	7,029	2,714	343,567	122,928	25,338	3,564	2,434	2,807	6,394	.256	.327	.404	.730
9	Giants	.508	4,558	4,408	8,967	304,497	38,885	77,367	14,178	1,952	8,072	36,592	30,255	2,413	58,853	5,223	2,528	343,362	119,665	24,202	3,776	2,421	3,231	6,614	.254	.324	.393	.717
10	Orioles	.504	4,508	4,435	8,947	305,538	40,518	78,950	14,441	1,300	9,680	38,463	29,796	2,562	55,898	4,746	2,181	342,607	125,031	25,421	2,197	2,514	1,970	7,193	.258	.327	.409	.736
11	Mets	.501	4,487	4,469	8,959	303,385	37,933	76,421	13,982	1,601	7,978	35,804	29,653	2,610	58,276	5,600	2,431	341,617	117,539	23,561	3,559	2,410	2,858	6,675	.252	.321	.387	.709
12	Phillies	.500	4,479	4,484	8,967	305,644	39,524	78,084	14,714	2,037	8,365	37,312	30,274	2,571	60,514	6,006	2,270	344,123	121,967	25,116	3,199	2,435	2,958	6,320	.255	.325	.399	.724
13	Blue Jays	.500	3,834	3,839	7,676	263,012	35,550	68,456	13,675	1,499	8,361	33,725	24,400	2,458	49,453	4,601	1,972	293,532	110,212	23,535	1,521	2,141	1,414	5,990	.260	.326	.419	.745
14	Angels	.498	4,466	4,500	8,968	305,006	39,625	78,649	13,828	1,536	8,389	37,359	28,507	2,602	55,523	5,621	2,797	341,485	120,716	23,753	2,894	2,476	2,159	7,018	.258	.324	.396	.720
15	Guardians	.497	4,441	4,500	8,943	305,392	40,807	79,926	14,738	1,550	8,631	38,575	29,678	2,586	54,521	5,841	2,728	342,907	123,657	24,919	2,527	2,724	1,985	7,105	.262	.330	.405	.735
16	Twins	.491	4,401	4,556	8,960	307,537	40,750	81,279	15,188	1,946	7,998	38,423	28,527	2,665	55,149	4,899	2,474	343,571	124,353	25,132	2,262	2,580	2,072	7,363	.264	.330	.404	.734
17	Cubs	.490	4,389	4,561	8,959	305,435	39,380	78,236	14,361	1,846	8,748	37,164	28,901	2,480	59,485	4,993	2,431	342,695	122,533	24,955	3,532	2,347	2,733	6,562	.256	.323	.401	.724
18	Rays	.490	2,152	2,242	4,394	149,386	19,541	37,910	7,540	860	4,589	18,585	14,180	1,701	34,072	3,307	1,253	167,192	60,937	12,989	749	1,176	694	3,070	.254	.323	.408	.731
19	Brewers	.490	4,386	4,574	8,964	304,321	39,941	77,970	14,532	1,764	8,796	37,838	29,298	2,745	59,487	6,057	2,760	341,980	122,418	25,092	3,173	2,443	2,165	6,650	.256	.325	.402	.727
20	Diamondbacks	.488	2,147	2,249	4,396	149,965	20,118	38,193	7,836	1,084	4,719	19,179	14,606	1,463	33,239	2,550	920	168,608	62,354	13,639	1,341	1,233	1,097	3,134	.255	.324	.416	.740
21	Rangers	.487	4,358	4,597	8,960	306,674	41,517	80,132	14,587	1,619	9,260	39,263	29,159	2,508	57,840	5,551	2,593	343,353	125,737	25,466	2,446	2,566	1,990	6,863	.261	.328	.410	.738
22	White Sox	.486	4,349	4,600	8,958	304,821	39,979	79,161	14,015	1,693	8,825	37,891	27,864	2,654	55,476	5,437	2,620	340,582	123,037	24,533	2,679	2,564	1,881	6,961	.260	.325	.404	.728
23	Tigers	.484	4,334	4,625	8,960	306,108	40,399	79,275	14,130	2,020	9,244	38,321	29,059	2,356	58,507	4,450	2,375	342,211	125,177	25,394	2,168	2,520	1,856	6,866	.259	.326	.409	.734
24	Pirates	.484	4,329	4,621	8,956	305,278	38,146	78,445	14,762	2,137	7,420	36,029	27,278	2,737	58,773	5,836	2,673	341,309	119,741	24,319	3,505	2,511	2,828	6,428	.257	.321	.392	.713
25	Nationals	.482	4,315	4,642	8,961	303,070	37,542	76,878	14,838	1,801	7,672	35,296	28,469	2,651	57,761	6,604	2,799	340,379	118,334	24,311	3,886	2,303	2,890	6,548	.254	.321	.390	.711