Between the 1990 and 1994 seasons, the Atlanta Braves had the highest winning percentage by a team, winning 56.3 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	Braves	.563	429	333	762	25,816	3,422	6,649	1,178	151	747	3,203	2,466	143	4,454	556	270	28,991	10,370	2,076	361	205	234	518	.258	.323	.402	.725
2	White Sox	.562	428	333	761	25,919	3,587	6,878	1,149	202	638	3,378	2,811	157	3,985	617	305	29,472	10,345	1,989	321	264	242	595	.265	.338	.399	.737
3	Blue Jays	.554	423	340	763	26,155	3,644	6,969	1,350	207	737	3,445	2,561	223	4,498	637	219	29,394	10,944	2,294	176	279	216	590	.266	.334	.418	.752
4	Pirates	.547	417	345	762	25,777	3,367	6,720	1,284	219	560	3,173	2,656	161	4,384	516	231	29,258	10,122	2,063	396	268	293	547	.261	.330	.393	.723
5	Expos	.540	411	350	762	25,835	3,206	6,594	1,242	188	541	2,968	2,444	185	4,585	1,017	354	29,091	9,835	1,971	386	241	265	469	.255	.321	.381	.702
6	Athletics	.528	402	360	762	25,658	3,502	6,527	1,112	99	736	3,296	3,039	196	4,538	657	275	29,392	10,045	1,947	243	256	205	596	.254	.335	.391	.726
7	Reds	.517	394	368	763	26,002	3,373	6,902	1,287	175	649	3,142	2,390	156	4,570	676	297	29,133	10,486	2,111	342	243	303	494	.265	.328	.403	.731
8	Giants	.511	390	373	763	25,918	3,254	6,631	1,084	184	689	3,049	2,274	197	4,662	550	282	29,017	10,150	1,957	434	194	308	478	.256	.318	.392	.710
9	Twins	.503	383	378	761	26,190	3,476	7,131	1,326	158	568	3,257	2,350	238	3,815	503	284	29,185	10,477	2,052	179	228	184	678	.272	.335	.400	.735
10	Rangers	.503	383	379	762	26,202	3,635	6,928	1,293	147	751	3,423	2,641	210	4,843	493	244	29,552	10,768	2,191	279	220	225	591	.264	.334	.411	.745
11	Orioles	.501	380	379	759	25,863	3,435	6,689	1,205	131	746	3,264	2,928	204	4,348	375	200	29,465	10,394	2,082	234	236	213	637	.259	.336	.402	.738
12	Dodgers	.500	381	381	762	25,759	3,148	6,648	1,008	147	554	2,917	2,482	129	4,432	609	309	29,007	9,612	1,709	425	212	245	524	.258	.324	.373	.697
13	Red Sox	.497	379	384	763	25,943	3,267	6,820	1,403	125	550	3,085	2,694	184	4,074	310	215	29,317	10,123	2,078	276	220	263	668	.263	.334	.390	.724
14	Cardinals	.495	377	385	763	25,871	3,174	6,762	1,231	199	461	2,982	2,566	134	4,265	860	420	29,106	9,774	1,891	306	229	249	499	.261	.329	.378	.706
15	Royals	.495	377	385	762	26,006	3,293	6,857	1,395	200	517	3,096	2,264	198	4,223	597	338	28,913	10,203	2,112	209	236	182	558	.264	.325	.392	.717
16	Phillies	.493	376	387	763	26,168	3,359	6,717	1,245	175	568	3,142	2,642	176	4,760	485	152	29,512	10,016	1,988	310	216	299	542	.257	.327	.383	.709
17	Tigers	.493	376	387	763	26,116	3,909	6,795	1,254	137	902	3,713	3,293	158	5,211	407	245	29,972	11,029	2,293	167	238	204	540	.260	.344	.422	.766
18	Yankees	.489	372	389	761	26,218	3,501	6,925	1,270	96	774	3,319	2,595	208	4,361	400	193	29,398	10,709	2,140	149	228	211	638	.264	.333	.408	.741
19	Astros	.488	372	391	763	25,782	3,104	6,554	1,244	175	527	2,917	2,447	194	4,678	670	309	29,014	9,729	1,946	385	206	290	489	.254	.321	.377	.699
20	Brewers	.486	371	392	763	26,121	3,551	6,879	1,244	170	550	3,311	2,558	162	4,014	723	385	29,390	10,113	1,964	257	292	221	542	.263	.329	.387	.717
21	Cubs	.481	365	394	760	26,257	3,216	6,825	1,141	161	669	3,039	2,075	158	4,237	520	261	29,036	10,295	1,971	335	211	245	523	.260	.316	.392	.708
22	Mariners	.467	355	405	760	25,909	3,324	6,759	1,280	121	696	3,143	2,654	197	3,954	441	239	29,269	10,369	2,097	259	250	260	646	.261	.331	.400	.731
23	Mets	.466	354	406	760	25,520	3,192	6,285	1,179	120	657	3,012	2,470	163	4,282	496	231	28,720	9,675	1,956	336	231	254	481	.246	.314	.379	.693
24	Indians	.463	352	409	761	26,216	3,451	7,062	1,233	142	624	3,252	2,225	184	4,081	625	280	29,116	10,451	1,999	230	261	200	619	.269	.328	.399	.727
25	Angels	.460	351	412	763	25,738	3,149	6,591	1,121	116	584	2,952	2,396	171	4,455	557	354	28,765	9,696	1,821	269	191	172	606	.256	.321	.377	.698