Between the 1992 and 2001 seasons, the Tampa Bay Devil Rays had the worst winning percentage by a team, winning 40.6 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	Devil Rays	.406	263	384	647	22,170	2,797	5,821	1,103	115	539	2,644	2,031	206	4,287	398	220	24,738	8,771	1,757	180	151	97	540	.263	.328	.396	.724
2	Tigers	.440	684	870	1,554	53,292	7,579	13,956	2,700	325	1,753	7,195	5,576	450	10,566	983	530	60,136	22,565	4,778	344	474	305	1,165	.262	.334	.423	.758
3	Marlins	.451	627	764	1,391	47,411	5,981	12,248	2,245	281	1,186	5,662	4,617	487	9,506	991	437	53,401	18,613	3,712	497	389	348	1,036	.258	.328	.393	.721
4	Twins	.453	703	848	1,552	53,758	7,325	14,648	2,905	347	1,198	6,865	4,978	521	9,311	1,165	551	59,983	21,841	4,450	244	482	354	1,387	.272	.337	.406	.744
5	Royals	.458	710	841	1,551	53,500	7,159	14,337	2,697	379	1,287	6,733	4,735	480	8,882	1,299	578	59,709	21,653	4,363	491	503	314	1,162	.268	.330	.405	.735
6	Pirates	.458	712	841	1,554	53,047	6,871	13,773	2,721	370	1,295	6,481	4,898	542	10,086	1,075	495	59,610	21,119	4,386	685	438	439	1,081	.260	.326	.398	.724
7	Brewers	.467	726	827	1,554	53,287	7,337	13,977	2,732	292	1,450	6,939	5,401	517	9,892	1,062	560	60,225	21,643	4,474	554	466	384	1,120	.262	.333	.406	.740
8	Phillies	.468	728	827	1,555	53,227	7,025	13,904	2,749	368	1,291	6,580	5,423	434	10,230	1,043	366	60,220	21,262	4,408	676	460	454	1,097	.261	.332	.399	.731
9	Angels	.472	734	821	1,555	53,334	7,251	14,194	2,572	243	1,560	6,873	5,213	430	9,418	1,004	599	59,848	21,932	4,375	449	422	352	1,234	.266	.334	.411	.745
10	Cubs	.475	738	816	1,555	53,232	7,102	13,843	2,517	320	1,612	6,726	5,022	419	10,125	860	455	59,835	21,836	4,449	757	405	481	1,180	.260	.326	.410	.737
11	Rockies	.478	667	728	1,395	48,409	7,623	13,840	2,591	407	1,707	7,204	4,428	453	8,562	1,100	538	54,372	22,366	4,705	664	418	369	1,110	.286	.349	.462	.811
12	Padres	.484	754	803	1,557	53,187	7,009	13,804	2,585	252	1,433	6,604	5,382	406	10,378	1,126	492	59,986	21,192	4,270	563	448	462	1,238	.260	.330	.398	.728
13	Expos	.486	755	799	1,555	52,797	6,788	13,691	2,910	330	1,389	6,361	4,527	520	9,683	1,184	480	58,987	21,428	4,629	744	399	461	1,106	.259	.322	.406	.728
14	Mets	.499	775	779	1,554	52,784	6,965	13,640	2,550	260	1,455	6,582	5,306	431	9,876	829	490	59,703	21,075	4,265	720	462	488	1,157	.258	.329	.399	.728
15	Athletics	.502	779	774	1,553	53,092	7,892	13,858	2,639	198	1,844	7,461	6,386	518	10,202	915	402	60,888	22,425	4,681	406	486	339	1,245	.261	.343	.422	.766
16	Rangers	.504	783	771	1,555	53,952	8,179	14,903	2,903	291	1,860	7,763	5,490	414	9,781	880	436	60,800	23,968	5,054	424	520	381	1,255	.276	.345	.444	.789
17	Blue Jays	.506	787	768	1,556	53,747	7,582	14,284	2,912	305	1,773	7,205	5,182	629	9,963	1,251	436	60,360	23,125	4,990	345	457	355	1,176	.266	.335	.430	.765
18	Orioles	.508	788	763	1,553	53,182	7,694	14,221	2,681	236	1,807	7,343	5,825	541	8,764	914	438	60,449	22,795	4,724	382	519	383	1,284	.267	.343	.429	.771
19	Dodgers	.508	790	764	1,554	52,884	6,852	13,694	2,234	293	1,544	6,464	5,071	350	10,046	1,212	530	59,508	21,146	4,071	795	408	420	1,076	.259	.326	.400	.725
20	Cardinals	.510	792	760	1,554	52,943	7,255	13,912	2,624	313	1,564	6,880	5,484	466	10,487	1,274	575	60,008	21,854	4,501	670	445	491	1,131	.263	.335	.413	.748
21	Reds	.511	795	760	1,557	53,181	7,342	14,113	2,774	329	1,577	6,910	5,281	412	10,243	1,399	561	60,014	22,276	4,680	660	480	483	1,128	.265	.334	.419	.753
22	Red Sox	.521	809	745	1,554	53,846	7,683	14,661	3,071	301	1,633	7,309	5,488	552	9,573	684	403	60,773	23,233	5,005	414	473	446	1,305	.272	.343	.431	.774
23	Mariners	.523	811	740	1,551	53,596	8,248	14,686	2,886	239	1,999	7,876	5,872	492	9,665	1,069	446	60,954	24,047	5,124	492	502	477	1,205	.274	.348	.449	.797
24	White Sox	.524	813	738	1,554	53,457	7,993	14,679	2,682	354	1,682	7,575	5,730	369	8,465	1,143	470	60,641	23,115	4,718	515	570	424	1,254	.275	.346	.432	.778
25	Giants	.525	817	739	1,556	53,193	7,515	13,973	2,595	320	1,683	7,118	5,752	480	10,275	1,065	505	60,678	22,257	4,598	796	457	609	1,106	.263	.337	.418	.756