Since 1920, the New York Yankees have the most wins - losing percentage by a team, with 9,650.58.

	TEAM	W-L%	W	L%	L	W%	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	9,650.58	9,651	.418	6,918	.582	16,614	569,231	83,391	152,400	25,941	4,436	17,145	78,601	61,838	4,086	86,204	8,448	2,828	645,340	238,648	47,522	6,865	3,320	2,869	10,758	.268	.342	.419	.761
2	Dodgers	9,047.55	9,048	.455	7,543	.545	16,642	568,067	74,622	149,004	25,052	4,337	13,356	69,709	55,398	3,688	87,405	10,098	3,566	639,483	222,798	42,745	9,232	3,098	3,759	10,016	.262	.330	.392	.722
3	Cardinals	8,950.54	8,951	.460	7,629	.540	16,640	572,014	76,217	153,357	27,649	5,010	12,258	71,206	53,046	3,906	85,098	10,181	3,632	640,747	227,800	44,917	8,614	3,167	3,784	10,213	.268	.333	.398	.731
4	Giants	8,695.52	8,696	.475	7,882	.525	16,617	568,653	74,865	148,525	24,795	4,380	14,538	70,041	53,775	3,935	87,891	7,996	3,158	637,862	225,694	43,713	8,444	3,055	4,028	10,258	.261	.328	.397	.725
5	Guardians	8,500.51	8,501	.487	8,064	.513	16,604	568,330	76,535	150,828	27,352	4,125	13,714	71,795	55,706	4,038	84,503	8,706	3,410	639,540	227,572	45,191	8,080	3,386	2,569	10,578	.265	.333	.400	.734
6	Red Sox	8,495.51	8,496	.487	8,078	.513	16,612	571,756	79,364	153,467	29,783	4,127	14,250	74,602	59,429	3,975	86,626	6,962	2,577	645,698	234,254	48,160	7,168	3,370	3,011	11,624	.268	.340	.410	.749
7	Braves	8,316.5	8,317	.498	8,240	.502	16,607	567,015	71,932	147,065	24,980	3,767	13,847	67,398	52,422	3,558	87,246	7,703	3,083	634,844	221,120	42,594	8,943	2,906	3,665	10,451	.259	.324	.390	.714
8	Reds	8,316.5	8,317	.498	8,262	.502	16,617	566,776	72,680	147,434	26,192	4,336	13,431	68,044	52,415	4,071	90,371	10,224	3,421	635,202	222,591	43,959	8,868	3,072	3,657	9,796	.260	.326	.393	.718
9	Tigers	8,289.5	8,290	.500	8,306	.500	16,650	570,329	77,460	150,809	26,233	4,846	14,345	72,564	57,679	3,702	87,930	7,715	2,949	642,532	229,769	45,424	7,678	3,144	2,455	10,776	.264	.334	.403	.737
10	Pirates	8,168.49	8,169	.507	8,394	.493	16,619	569,881	72,483	150,481	26,136	5,635	11,428	67,780	50,479	3,968	87,777	9,055	3,294	636,073	222,171	43,199	8,606	3,139	3,710	10,133	.264	.327	.390	.716
11	Cubs	8,158.49	8,159	.508	8,418	.492	16,633	568,798	73,279	148,171	26,065	4,397	13,881	68,611	52,767	3,919	92,258	8,135	3,095	637,231	224,673	44,343	8,800	2,947	3,531	10,014	.260	.326	.395	.721
12	White Sox	8,111.49	8,112	.510	8,447	.490	16,610	565,866	73,268	148,028	25,233	4,291	12,130	68,530	54,268	4,370	82,977	9,888	3,496	636,253	218,233	41,654	8,503	3,246	2,468	10,600	.262	.329	.386	.715
13	Twins	8,093.49	8,094	.512	8,477	.488	16,621	570,443	75,317	151,121	26,714	5,094	11,840	70,297	55,230	4,278	84,524	8,639	3,104	640,568	223,543	43,648	7,428	3,189	2,670	11,047	.265	.333	.392	.725
14	Orioles	7,998.48	7,999	.517	8,558	.483	16,612	567,142	74,050	147,487	26,337	3,774	14,250	69,492	56,079	3,763	87,706	7,590	2,809	637,774	224,122	44,361	7,660	3,130	2,587	10,908	.260	.329	.395	.724
15	Athletics	7,960.48	7,961	.519	8,603	.481	16,607	564,611	73,987	145,049	25,613	3,981	13,797	69,231	57,360	3,961	89,728	8,967	3,228	636,607	220,015	43,391	7,547	3,128	2,281	10,691	.257	.328	.390	.718
16	Phillies	7,698.46	7,699	.535	8,870	.465	16,607	567,714	71,561	147,164	26,134	4,296	13,135	66,950	53,292	3,920	92,674	8,560	2,935	635,995	221,295	43,565	8,024	3,045	3,752	9,926	.259	.325	.390	.715
17	Astros	5,095.5	5,096	.497	5,040	.503	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
18	Angels	5,092.49	5,093	.505	5,205	.495	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	Mets	4,898.48	4,899	.516	5,227	.484	10,134	342,866	41,892	85,672	15,312	1,825	8,750	39,466	32,799	2,919	65,915	5,998	2,747	385,240	130,884	25,887	4,001	2,655	3,159	7,537	.250	.318	.382	.700
20	Rangers	4,898.48	4,899	.524	5,383	.476	10,288	351,200	46,294	90,502	16,150	1,902	10,322	43,749	33,253	2,746	66,121	6,037	2,869	393,030	141,422	28,374	2,972	2,859	2,267	7,861	.258	.324	.403	.727
21	Brewers	4,404.49	4,405	.511	4,595	.489	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
22	Nationals	4,330.48	4,331	.519	4,665	.481	9,000	304,365	37,707	77,186	14,895	1,810	7,716	35,450	28,557	2,661	58,151	6,632	2,809	341,786	118,849	24,421	3,888	2,315	2,891	6,577	.254	.321	.390	.711
23	Royals	4,289.48	4,290	.523	4,703	.477	8,995	307,598	39,324	80,723	15,123	2,302	7,131	37,129	26,312	2,512	52,884	7,161	2,922	341,504	121,843	24,556	2,388	2,694	1,879	6,853	.262	.323	.396	.719
24	Padres	4,216.47	4,217	.532	4,789	.468	9,008	304,496	36,548	75,940	13,450	1,772	7,370	34,376	28,979	2,171	60,306	6,074	2,624	341,673	115,044	22,592	3,748	2,279	2,699	6,573	.249	.317	.378	.695
25	Blue Jays	3,854.5	3,855	.500	3,856	.500	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