Since 2005, the Kansas City Royals have the worst record by a team, with a record of 1474-1826.

	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	1474-1826	.447	3,300	1,474	1,826	112,568	13,988	29,091	5,739	710	2,861	13,297	8,660	1,125	22,992	2,304	776	123,932	44,833	9,310	667	912	468	2,544	.258	.315	.398	.714
2	Rockies	1482-1819	.449	3,301	1,482	1,819	112,862	15,421	29,606	5,930	819	3,587	14,724	10,133	998	26,863	1,810	735	125,986	47,935	10,336	1,154	839	703	2,434	.262	.326	.425	.751
3	Pirates	1488-1809	.451	3,298	1,488	1,809	111,578	13,533	27,700	5,573	615	2,967	12,935	9,934	1,287	26,100	1,734	725	124,568	43,404	9,155	950	819	669	2,390	.248	.315	.389	.704
4	Marlins	1502-1795	.456	3,297	1,502	1,795	112,017	13,652	28,212	5,437	616	3,081	12,972	9,664	1,212	26,555	1,936	695	124,695	44,124	9,134	1,012	790	713	2,448	.252	.316	.394	.710
5	Orioles	1527-1772	.463	3,299	1,527	1,772	112,999	14,687	28,825	5,627	411	3,943	14,058	9,382	1,141	25,081	1,604	579	124,806	47,103	9,981	467	817	455	2,494	.255	.316	.417	.733
6	White Sox	1543-1757	.468	3,300	1,543	1,757	112,177	14,210	28,376	5,280	439	3,648	13,628	9,260	1,281	25,404	1,801	783	124,130	45,478	9,367	622	790	426	2,550	.253	.315	.405	.721
7	Reds	1570-1730	.476	3,301	1,570	1,730	111,617	14,597	27,897	5,499	491	3,773	13,931	10,777	1,376	26,536	2,115	769	125,642	45,697	9,763	1,062	810	697	2,299	.250	.321	.409	.731
8	Nationals	1576-1722	.478	3,298	1,576	1,722	111,482	14,357	28,305	5,680	530	3,335	13,666	10,554	1,259	25,256	2,068	751	125,202	45,050	9,545	1,051	856	733	2,484	.254	.323	.404	.727
9	Diamondbacks	1592-1708	.482	3,300	1,592	1,708	112,358	14,962	28,303	5,923	798	3,545	14,269	10,910	1,124	26,216	1,986	655	126,253	46,457	10,266	935	926	752	2,327	.252	.322	.413	.735
10	Padres	1606-1695	.487	3,301	1,606	1,695	111,051	13,705	27,193	5,298	579	3,226	13,043	10,633	1,055	26,204	2,091	697	124,578	43,327	9,103	1,008	831	661	2,315	.245	.315	.390	.705
11	Mariners	1609-1691	.488	3,300	1,609	1,691	112,061	13,956	27,694	5,219	436	3,547	13,289	9,872	1,278	25,913	2,008	712	124,536	44,426	9,202	555	770	556	2,321	.247	.313	.396	.710
12	Tigers	1613-1683	.489	3,296	1,613	1,683	112,982	14,803	29,395	5,656	743	3,455	14,174	9,734	1,016	25,718	1,391	578	125,117	46,902	9,854	511	874	555	2,542	.260	.322	.415	.737
13	Twins	1624-1678	.492	3,302	1,624	1,678	112,840	15,085	28,950	5,763	589	3,472	14,330	10,577	1,162	24,844	1,650	623	126,005	46,307	9,824	528	898	578	2,535	.257	.324	.410	.735
14	Athletics	1623-1676	.492	3,299	1,623	1,676	111,843	14,496	27,525	5,663	477	3,537	13,807	11,016	1,142	25,150	1,705	539	125,298	44,753	9,677	426	871	402	2,557	.246	.318	.400	.718
15	Rangers	1642-1659	.497	3,301	1,642	1,659	112,901	15,684	29,062	5,714	515	3,951	14,928	10,116	1,189	25,515	2,160	720	125,661	47,659	10,180	568	887	515	2,315	.257	.323	.422	.745
16	Giants	1660-1639	.503	3,299	1,660	1,639	112,036	13,876	28,150	5,646	688	2,986	13,191	9,994	1,063	24,660	1,529	610	124,948	44,130	9,320	950	905	774	2,545	.251	.316	.394	.710
17	Cubs	1664-1634	.505	3,299	1,664	1,634	112,030	14,770	28,279	5,727	597	3,667	14,062	10,684	1,349	26,401	1,760	707	125,732	46,201	9,991	887	782	700	2,384	.252	.323	.412	.735
18	Mets	1671-1629	.506	3,300	1,671	1,629	111,913	14,603	28,222	5,598	560	3,559	13,969	10,751	1,375	24,973	2,098	632	125,837	45,617	9,717	954	844	824	2,396	.252	.323	.408	.731
19	Blue Jays	1677-1623	.508	3,300	1,677	1,623	112,529	15,414	28,819	6,052	424	4,062	14,745	10,614	1,133	24,088	1,571	572	125,618	47,905	10,538	471	871	432	2,637	.256	.324	.426	.750
20	Angels	1681-1619	.509	3,300	1,681	1,619	112,103	14,883	28,567	5,448	504	3,616	14,181	10,005	1,171	24,347	2,146	813	124,744	45,871	9,568	578	887	687	2,557	.255	.320	.409	.729
21	Astros	1688-1610	.512	3,299	1,688	1,610	112,098	14,752	28,616	5,701	469	3,728	14,085	10,227	1,196	24,581	1,943	742	125,176	46,439	9,898	801	854	564	2,586	.255	.322	.414	.736
22	Phillies	1712-1588	.519	3,300	1,712	1,588	112,663	15,103	28,548	5,623	651	3,757	14,424	10,796	1,287	25,929	2,123	534	126,439	46,744	10,031	896	797	865	2,241	.253	.324	.415	.739
23	Rays	1717-1584	.520	3,301	1,717	1,584	111,760	14,801	28,078	5,620	629	3,680	14,094	10,911	1,334	27,034	2,569	912	125,358	45,996	9,929	462	891	490	2,240	.251	.323	.412	.734
24	Brewers	1725-1576	.523	3,301	1,725	1,576	111,454	14,931	28,022	5,628	545	3,869	14,252	10,877	1,383	26,967	2,320	735	125,433	46,347	10,042	922	797	713	2,433	.251	.324	.416	.739
25	Guardians	1731-1566	.525	3,297	1,731	1,566	111,940	15,007	28,500	5,992	497	3,487	14,312	10,809	1,292	24,720	2,088	665	125,620	45,947	9,976	622	957	630	2,395	.255	.325	.410	.735