Between the 1876 and 2024 seasons, the Milwaukee Brewers had the best winning percentage by a team, winning 66.7 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	Brewers	.667	8	4	12	395	53	88	25	0	0		20		70			415	113	25					.223		.286
2	Reds	.659	174	90	269	9,515	2,020	2,647	386	176	106	1,548	1,303	109	499	859		10,927	3,703	668					.278	.371	.389	.761
3	Outlaw Reds	.657	69	36	105	3,786	703	1,027	118	63	26		147		482			3,933	1,349	207					.271		.356
4	Browns	.644	781	432	1,233	43,777	7,933	11,555	1,658	602	304	4,657	3,473	353	436	2,307		47,743	15,329	2,564					.264	.325	.350	.675
5	Dark Blues	.619	78	48	129	5,022	770	1,348	159	53	6		69					5,091	1,631	218					.268		.325
6	Grays	.612	438	278	725	26,572	4,037	6,764	1,084	341	98	292	1,192					27,764	8,824	1,523					.255		.332
7	Brown Stockings	.589	73	51	124	4,656	670	1,173	124	63	3		116					4,772	1,432	190					.252		.308
8	Brewers	.583	21	15	36	1,271	227	332	58	15	13	165	107	29	114	47		1,407	459	86					.261	.333	.361	.694
9	Orioles	.579	730	530	1,294	45,361	8,530	13,521	1,814	865	218	6,940	4,345	992	2,952	2,993		51,317	17,719	2,897	619				.298	.372	.391	.763
10	Ward's Wonders	.576	76	56	133	4,887	964	1,352	186	93	34	748	502	42	369	272		5,431	1,826	313					.277	.349	.374	.723
11	Yankees	.569	10,778	8,148	19,014	648,050	92,367	172,057	28,550	5,487	17,241	85,817	68,399	4,904	94,421	11,617	2,790	734,213	263,304	51,278	9,594	3,266	2,822	10,654	.265	.339	.406	.745
12	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
13	Giants	.565	74	57	132	4,913	1,018	1,393	204	97	66	793	486	31	364	231		5,430	1,989	367					.284	.352	.405	.757
14	Monumentals	.552	58	47	106	3,883	662	952	150	26	17		144		652			4,027	1,205	193					.245		.310
15	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
16	Pirates	.547	75	62	138	4,968	886	1,311	200	95	31	705	492	43	410	276		5,503	1,794	326					.264	.335	.361	.697
17	Giants	.535	11,541	10,019	21,723	741,434	100,451	195,066	31,275	7,030	15,538	89,934	68,134	5,662	99,171	16,491	3,134	829,891	287,015	53,843	11,658	3,003	4,014	10,155	.263	.329	.387	.716
18	Reds	.532	58	51	111	3,940	636	928	168	32	19		128		787			4,068	1,217	219					.236		.309
19	Dodgers	.532	11,432	10,068	21,639	737,318	97,644	192,639	30,976	6,997	14,055	87,875	68,722	5,133	99,956	17,309	3,541	827,064	279,774	52,028	12,771	3,044	3,726	9,908	.261	.327	.379	.707
20	Athletics	.529	633	564	1,219	43,556	7,481	11,208	1,782	741	284	4,168	3,158	351	548	1,900		47,191	15,324	2,807					.257	.315	.352	.666
21	Athletics	.519	68	63	132	4,855	941	1,350	187	113	49	761	431	51	321	203		5,337	1,910	349					.278	.343	.393	.737
22	Red Sox	.518	9,955	9,263	19,301	660,561	90,132	176,286	33,030	5,592	14,543	83,578	66,644	4,784	95,125	9,585	2,539	745,910	264,129	53,165	10,592	3,329	2,987	11,525	.267	.337	.400	.737
23	Grays	.516	65	61	130	4,925	619	1,300	143	50	15		82					5,007	1,588	208					.264		.322
24	Maumees	.515	68	64	134	4,575	739	1,152	152	108	24	512	486	71		421		5,132	1,592	284					.252	.333	.348	.681
25	Cardinals	.513	10,505	9,970	20,606	704,855	92,184	187,320	31,738	7,048	12,815	84,258	64,028	5,179	97,788	14,983	3,605	789,157	271,599	51,601	11,968	3,127	3,767	10,098	.266	.330	.385	.715