Between the 1991 and 2000 seasons, the Tampa Bay Devil Rays had the lowest winning percentage by a team, winning 41.4 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	.414	201	284	485	16,646	2,125	4,395	792	94	418	1,999	1,575	152	3,171	283	168	18,634	6,629	1,304	135	126	73	410	.264	.331	.398	.729
2	Marlins	.448	551	678	1,229	41,869	5,239	10,787	1,920	251	1,020	4,949	4,147	420	8,361	902	397	47,217	16,269	3,191	437	344	305	918	.258	.328	.389	.717
3	Tigers	.452	702	852	1,554	53,302	7,672	13,889	2,668	291	1,823	7,282	5,809	430	10,779	959	516	60,351	22,608	4,782	341	469	319	1,135	.261	.335	.424	.760
4	Twins	.460	713	838	1,552	53,754	7,330	14,691	2,847	351	1,174	6,881	5,009	497	8,975	1,126	552	60,016	21,762	4,372	263	493	350	1,420	.273	.338	.405	.743
5	Phillies	.463	720	835	1,555	53,251	6,908	13,805	2,702	372	1,238	6,462	5,362	412	10,131	982	349	60,134	20,965	4,312	661	448	450	1,107	.259	.329	.394	.723
6	Cubs	.468	727	825	1,553	53,348	7,020	13,829	2,481	314	1,577	6,632	4,887	389	9,927	916	483	59,746	21,669	4,372	715	407	450	1,135	.259	.324	.406	.730
7	Royals	.469	727	824	1,551	53,441	7,157	14,309	2,710	383	1,252	6,731	4,852	471	8,953	1,318	604	59,775	21,541	4,345	508	503	330	1,154	.268	.331	.403	.734
8	Angels	.476	740	815	1,555	53,253	7,213	14,143	2,542	246	1,517	6,818	5,167	391	9,345	982	603	59,677	21,728	4,305	466	400	346	1,239	.266	.333	.408	.741
9	Brewers	.477	741	812	1,554	53,410	7,396	14,122	2,706	315	1,357	6,977	5,469	468	9,295	1,102	592	60,385	21,529	4,378	541	497	388	1,155	.264	.335	.403	.738
10	Pirates	.482	748	805	1,554	53,098	6,982	13,873	2,724	395	1,260	6,588	5,051	510	9,881	1,106	468	59,852	21,167	4,379	724	469	450	1,078	.261	.329	.399	.727
11	Rockies	.482	594	639	1,233	42,719	6,700	12,177	2,267	346	1,494	6,330	3,917	392	7,535	968	484	47,979	19,618	4,107	583	368	319	994	.285	.348	.459	.807
12	Padres	.487	759	798	1,557	53,113	6,856	13,746	2,516	262	1,393	6,442	5,205	397	10,174	1,098	512	59,765	20,965	4,171	612	438	485	1,239	.259	.327	.395	.722
13	Expos	.488	758	795	1,554	52,830	6,697	13,659	2,826	344	1,353	6,275	4,533	488	9,668	1,304	529	58,996	21,232	4,523	744	401	453	1,052	.259	.321	.402	.723
14	Athletics	.490	761	792	1,553	52,929	7,768	13,731	2,551	195	1,804	7,342	6,388	480	10,162	998	437	60,695	22,084	4,550	422	476	337	1,245	.259	.342	.417	.759
15	Mets	.496	770	783	1,553	52,684	6,963	13,584	2,527	266	1,425	6,579	5,339	393	9,603	916	512	59,623	20,918	4,218	728	479	482	1,130	.258	.328	.397	.725
16	Mariners	.502	778	773	1,551	53,410	8,023	14,449	2,844	230	1,956	7,660	5,846	467	9,487	992	448	60,716	23,621	5,030	499	494	480	1,232	.271	.345	.442	.787
17	Cardinals	.505	783	769	1,554	52,855	7,092	13,809	2,589	334	1,433	6,711	5,487	422	10,255	1,385	650	59,851	21,365	4,356	645	442	488	1,100	.261	.333	.404	.737
18	Orioles	.510	792	760	1,553	53,314	7,693	14,283	2,675	241	1,841	7,340	5,839	497	8,749	831	418	60,556	22,963	4,757	391	515	390	1,310	.268	.343	.431	.773
19	Rangers	.512	795	759	1,555	53,970	8,118	14,876	2,865	299	1,791	7,693	5,538	381	9,727	885	454	60,853	23,712	4,955	458	506	405	1,252	.276	.344	.439	.784
20	Dodgers	.513	797	757	1,554	52,799	6,759	13,661	2,161	295	1,446	6,355	5,135	322	9,941	1,249	556	59,498	20,750	3,902	832	410	425	1,070	.259	.326	.393	.719
21	Blue Jays	.513	798	757	1,556	53,573	7,499	14,207	2,920	314	1,711	7,126	5,211	613	9,912	1,243	434	60,243	22,888	4,945	367	479	357	1,173	.265	.335	.427	.762
22	Diamondbacks	.514	250	236	486	16,676	2,365	4,385	806	136	554	2,242	1,612	171	3,259	307	121	18,771	7,125	1,496	167	145	121	333	.263	.332	.427	.759
23	Giants	.515	802	754	1,556	53,044	7,365	13,825	2,506	328	1,589	6,948	5,598	470	10,158	1,103	520	60,367	21,754	4,423	819	436	589	1,089	.261	.334	.410	.744
24	Reds	.516	803	752	1,557	53,099	7,296	14,068	2,720	334	1,565	6,874	5,301	379	10,077	1,420	563	59,926	22,151	4,619	666	481	490	1,083	.265	.333	.417	.750
25	Astros	.521	810	745	1,555	53,206	7,443	14,116	2,814	321	1,387	7,000	5,674	626	10,204	1,453	601	60,714	21,733	4,522	720	488	577	1,142	.265	.340	.408	.749