worst winning percentages from 2005 to 2010

Between the 2005 and 2010 seasons, the Pittsburgh Pirates had the lowest winning percentage by a team, winning 40.0 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	Pirates	.400	388	583	971	33,131	4,053	8,491	1,779	168	832	3,893	2,829	370	6,815	443	170	36,961	13,102	2,779	362	269	230	767	.256	.319	.395	.715
2	Royals	.405	394	578	972	33,370	4,217	8,880	1,782	227	737	3,978	2,646	343	6,118	478	228	36,879	13,327	2,746	254	266	165	851	.266	.324	.399	.723
3	Orioles	.423	411	560	971	33,523	4,389	9,011	1,783	147	960	4,180	2,895	309	5,778	581	219	37,185	13,968	2,890	189	269	191	825	.269	.330	.417	.747
4	Nationals	.424	412	559	971	32,843	4,064	8,366	1,732	180	826	3,883	3,263	394	6,897	501	254	37,189	12,936	2,738	429	260	255	802	.255	.327	.394	.721
5	Mariners	.455	442	530	972	33,456	4,073	8,779	1,631	153	840	3,843	2,556	299	5,988	610	218	36,794	13,236	2,624	242	241	247	757	.262	.318	.396	.714
6	Diamondbacks	.473	460	512	972	33,040	4,334	8,404	1,834	231	1,034	4,160	3,389	304	7,284	498	184	37,364	13,802	3,099	350	281	277	700	.254	.327	.418	.745
7	Reds	.481	468	504	973	33,193	4,519	8,583	1,761	129	1,176	4,324	3,374	358	7,080	567	217	37,600	14,130	3,066	420	255	266	695	.259	.331	.426	.757
8	Rays	.485	471	501	972	33,061	4,600	8,634	1,723	219	1,073	4,386	3,338	343	7,165	924	307	37,232	14,014	3,015	190	300	178	660	.261	.332	.424	.756
9	Giants	.488	474	497	971	32,996	4,072	8,526	1,733	225	800	3,847	2,788	289	6,000	489	199	36,768	13,109	2,758	438	257	315	837	.258	.319	.397	.717
10	Astros	.494	480	491	972	32,927	4,117	8,459	1,655	168	919	3,939	2,925	328	6,222	586	245	36,880	13,207	2,742	457	243	243	779	.257	.322	.401	.723
11	Rockies	.495	482	491	973	33,280	4,734	8,894	1,798	256	1,001	4,503	3,507	333	7,123	596	246	37,900	14,207	3,055	512	268	280	717	.267	.341	.427	.767
12	Indians	.496	482	490	972	33,430	4,695	8,887	1,936	154	1,041	4,486	3,336	436	7,107	441	193	37,705	14,254	3,131	219	284	229	750	.266	.338	.426	.764
13	Marlins	.497	483	488	971	33,233	4,526	8,750	1,847	202	1,030	4,294	3,155	410	7,471	554	219	37,460	14,091	3,079	400	262	300	675	.263	.332	.424	.756
14	Cubs	.500	485	485	970	33,400	4,418	8,896	1,854	174	1,005	4,209	3,021	292	6,509	470	220	37,340	14,113	3,033	391	236	245	785	.266	.330	.423	.753
15	Brewers	.500	486	486	972	33,086	4,542	8,584	1,836	181	1,148	4,347	3,240	452	7,182	503	204	37,372	14,226	3,165	331	263	286	722	.259	.331	.430	.761
16	Padres	.501	487	486	973	33,117	4,096	8,332	1,654	190	889	3,907	3,363	298	6,934	519	195	37,452	13,033	2,733	407	267	277	728	.252	.324	.394	.717
17	Athletics	.503	488	483	971	33,187	4,352	8,513	1,724	132	870	4,137	3,479	296	6,247	521	169	37,420	13,111	2,726	166	292	134	845	.257	.330	.395	.725
18	Rangers	.504	490	482	972	33,819	4,988	9,170	1,906	175	1,202	4,756	3,081	289	6,843	561	173	37,686	15,032	3,283	214	283	185	743	.271	.335	.444	.779
19	Tigers	.509	495	478	973	33,825	4,747	9,208	1,775	243	1,083	4,535	2,946	300	6,562	433	192	37,572	14,718	3,101	244	257	199	778	.272	.334	.435	.769
20	Blue Jays	.510	496	476	972	33,407	4,604	8,838	1,960	156	1,092	4,411	3,073	358	6,035	405	160	37,291	14,386	3,208	158	295	163	813	.265	.330	.431	.761
21	Dodgers	.514	500	472	972	33,199	4,387	8,804	1,686	211	833	4,165	3,336	311	6,201	657	275	37,522	13,411	2,730	408	268	327	812	.265	.335	.404	.739
22	Braves	.516	502	470	972	33,364	4,654	8,909	1,876	168	1,000	4,452	3,448	291	6,629	387	179	37,797	14,121	3,044	441	253	307	835	.267	.339	.423	.762
23	Mets	.521	506	466	972	33,192	4,486	8,757	1,731	227	947	4,251	3,229	285	6,174	889	245	37,468	13,783	2,905	458	304	349	705	.264	.332	.415	.747
24	White Sox	.531	517	456	973	33,127	4,589	8,712	1,598	117	1,222	4,409	3,010	393	6,167	648	317	37,045	14,210	2,937	250	265	174	822	.263	.329	.429	.758
25	Cardinals	.540	524	447	971	33,232	4,556	8,968	1,720	139	979	4,319	3,217	330	5,831	425	205	37,456	13,903	2,838	421	256	391	811	.270	.338	.418	.756