Between the 2000 and 2009 seasons, the Kansas City Royals had the worst record by a team, with a record of 672-948.

	TEAM	REC	W%	G	W	L	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Royals	672-948	.415	1,620	672	948	55,759	7,442	14,866	2,895	370	1,370	7,011	4,553	603	9,855	911	410	61,839	22,611	4,635	448	476	286	1,336	.267	.326	.406	.732
2	Pirates	681-936	.421	1,617	681	936	55,180	6,990	14,247	2,884	301	1,482	6,659	4,878	725	10,970	770	373	61,861	22,179	4,667	649	429	413	1,221	.258	.324	.402	.726
3	Rays	694-923	.429	1,617	694	923	55,392	7,305	14,466	2,865	344	1,611	6,957	5,025	560	11,100	1,333	487	61,786	22,852	4,820	359	450	305	1,145	.261	.326	.413	.739
4	Orioles	698-920	.431	1,620	698	920	55,882	7,509	14,921	2,998	241	1,633	7,150	4,954	556	9,455	1,064	428	62,230	23,300	4,872	360	478	310	1,317	.267	.330	.417	.747
5	Nationals	711-908	.439	1,619	711	908	54,729	6,898	14,044	2,982	300	1,443	6,558	5,307	549	10,815	877	453	61,772	21,955	4,725	780	407	525	1,320	.257	.326	.401	.727
6	Tigers	729-891	.450	1,620	729	891	55,858	7,536	14,868	2,815	442	1,725	7,193	4,752	514	10,647	829	418	62,018	23,742	4,982	431	463	275	1,271	.266	.327	.425	.752
7	Brewers	741-878	.458	1,620	741	878	54,977	7,247	14,007	2,943	288	1,822	6,940	5,389	698	12,268	891	387	62,109	22,992	5,053	619	426	469	1,257	.255	.327	.418	.745
8	Reds	751-869	.464	1,622	751	869	55,329	7,442	14,192	2,897	227	1,909	7,107	5,585	645	11,878	950	377	62,651	23,270	5,033	692	400	477	1,195	.257	.330	.421	.750
9	Padres	769-852	.474	1,621	769	852	55,344	7,080	14,142	2,774	322	1,478	6,734	5,783	478	11,246	854	350	62,609	21,994	4,574	543	461	418	1,268	.256	.329	.397	.726
10	Rockies	769-852	.474	1,621	769	852	55,707	8,319	15,280	3,116	422	1,754	7,876	5,718	551	11,141	970	443	63,260	24,502	5,292	813	471	478	1,261	.274	.345	.440	.785
11	Rangers	776-844	.479	1,620	776	844	56,414	8,468	15,289	3,195	305	2,155	8,096	5,240	556	11,078	800	299	63,020	25,559	5,655	329	481	331	1,241	.271	.336	.453	.789
12	Diamondbacks	805-815	.497	1,620	805	815	55,311	7,382	14,337	2,980	402	1,693	7,062	5,537	511	10,826	801	341	62,457	23,200	5,075	622	476	501	1,199	.259	.330	.419	.749
13	Blue Jays	805-814	.497	1,619	805	814	56,025	7,903	15,000	3,208	297	1,796	7,537	5,179	651	10,297	758	303	62,601	24,190	5,301	253	493	312	1,355	.268	.334	.432	.766
14	Cubs	807-811	.499	1,618	807	811	55,514	7,493	14,607	2,965	284	1,840	7,143	5,317	494	10,977	777	342	62,527	23,660	5,089	773	429	473	1,279	.263	.331	.426	.757
15	Marlins	811-807	.501	1,618	811	807	55,225	7,448	14,588	2,999	332	1,655	7,051	5,260	658	11,501	1,142	478	62,257	23,216	4,986	669	445	490	1,171	.264	.333	.420	.753
16	Indians	816-804	.504	1,620	816	804	55,897	8,192	15,050	3,146	282	1,880	7,828	5,667	688	11,127	774	388	63,144	24,400	5,308	405	487	355	1,312	.269	.341	.437	.778
17	Mets	815-803	.504	1,618	815	803	55,041	7,295	14,304	2,808	291	1,633	6,910	5,434	527	10,416	1,155	391	62,172	22,593	4,732	728	442	539	1,257	.260	.330	.410	.740
18	Astros	832-787	.514	1,620	832	787	55,127	7,648	14,523	2,898	306	1,813	7,305	5,500	668	10,585	890	397	62,486	23,472	5,017	733	458	480	1,328	.263	.335	.426	.761
19	Mariners	837-783	.517	1,620	837	783	56,076	7,701	15,207	2,865	285	1,533	7,296	5,193	528	9,916	1,119	414	62,728	23,241	4,683	433	498	447	1,272	.271	.336	.414	.750
20	Phillies	850-769	.525	1,619	850	769	55,721	7,978	14,614	3,057	348	1,888	7,594	6,179	632	11,388	1,132	300	63,604	24,031	5,293	624	448	610	1,136	.262	.340	.431	.771
21	White Sox	857-764	.529	1,621	857	764	55,276	8,125	14,724	2,836	225	2,154	7,803	5,227	589	10,101	960	455	62,034	24,472	5,215	467	475	279	1,304	.266	.334	.443	.776
22	Giants	855-762	.529	1,618	855	762	55,138	7,487	14,548	2,952	376	1,660	7,120	5,549	517	9,838	740	329	62,420	23,232	4,988	738	478	736	1,326	.264	.334	.421	.756
23	Dodgers	862-758	.532	1,620	862	758	55,301	7,324	14,485	2,717	321	1,612	6,982	5,361	559	10,179	1,027	423	62,289	22,680	4,650	653	415	495	1,315	.262	.331	.410	.741
24	Twins	863-758	.532	1,621	863	758	55,972	7,721	15,229	3,015	383	1,471	7,279	5,149	520	9,891	1,027	454	62,526	23,423	4,869	381	504	411	1,413	.272	.336	.418	.755
25	Athletics	890-728	.550	1,618	890	728	55,655	7,881	14,480	2,995	214	1,769	7,527	6,115	571	10,333	614	231	63,058	23,210	4,978	241	476	336	1,382	.260	.337	.417	.754