Between the 1990 and 2020 seasons, the Kansas City Royals had the worst record by a team, with a record of 2181-2669.

	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	2181-2669	.450	4,850	2,181	2,669	166,637	21,486	44,055	8,564	1,117	4,024	20,270	13,721	1,575	30,428	3,520	1,452	184,618	66,925	13,705	1,272	1,413	880	3,839	.264	.324	.402	.725
2	Tigers	2236-2613	.461	4,849	2,236	2,613	166,665	22,587	43,874	8,402	1,080	5,253	21,540	15,602	1,424	34,384	2,457	1,257	186,082	70,195	14,735	1,025	1,366	972	3,777	.263	.329	.421	.750
3	Marlins	2021-2343	.463	4,364	2,021	2,343	148,596	18,580	38,156	7,282	887	3,946	17,604	13,689	1,581	32,211	2,773	1,156	166,614	59,050	12,115	1,628	1,120	1,128	3,282	.257	.324	.397	.721
4	Pirates	2266-2582	.467	4,850	2,266	2,582	164,931	20,839	42,254	8,417	1,048	4,255	19,812	14,939	1,868	34,008	2,818	1,286	185,009	65,532	13,720	1,952	1,319	1,273	3,510	.256	.323	.397	.720
5	Orioles	2272-2577	.469	4,852	2,272	2,577	166,760	22,385	43,638	8,342	647	5,563	21,365	15,394	1,598	31,595	2,480	1,087	186,166	69,963	14,552	1,048	1,366	947	3,946	.262	.328	.420	.747
6	Rockies	2059-2314	.471	4,373	2,059	2,314	150,606	22,071	41,243	8,075	1,171	5,013	20,964	14,006	1,336	31,406	2,751	1,258	169,043	66,699	14,259	1,910	1,185	1,142	3,344	.274	.339	.443	.781
7	Padres	2303-2555	.474	4,858	2,303	2,555	164,616	20,483	41,339	7,800	906	4,426	19,371	15,922	1,367	35,398	3,133	1,269	184,931	64,229	13,132	1,724	1,302	1,261	3,608	.251	.320	.390	.710
8	Rays	1726-1896	.477	3,622	1,726	1,896	123,382	15,999	31,557	6,243	747	3,714	15,226	11,727	1,361	27,171	2,628	1,040	138,177	50,436	10,704	708	999	623	2,628	.256	.325	.409	.734
9	Brewers	2336-2517	.481	4,854	2,336	2,517	165,154	22,000	42,486	8,407	909	5,112	20,913	16,025	1,805	35,074	3,295	1,390	186,003	68,047	14,428	1,700	1,319	1,218	3,656	.257	.327	.412	.739
10	Reds	2366-2489	.487	4,858	2,366	2,489	165,246	21,842	42,460	8,325	837	5,267	20,738	16,134	1,661	35,318	3,481	1,383	186,319	68,260	14,429	2,002	1,276	1,387	3,408	.257	.327	.413	.740
11	Twins	2382-2470	.491	4,853	2,382	2,470	167,195	22,578	44,542	8,833	1,020	4,410	21,326	15,418	1,546	31,659	2,950	1,340	186,510	68,645	14,263	930	1,421	1,044	4,023	.266	.331	.411	.742
12	Mariners	2386-2465	.492	4,851	2,386	2,465	166,415	22,266	43,465	8,269	750	5,177	21,188	15,841	1,528	32,625	3,068	1,244	186,353	68,765	14,196	1,205	1,364	1,195	3,674	.261	.329	.413	.742
13	Nationals	2392-2459	.493	4,852	2,392	2,459	164,397	21,093	42,125	8,595	921	4,625	19,943	15,397	1,607	33,794	3,422	1,364	184,783	66,437	14,141	2,104	1,278	1,423	3,535	.256	.324	.404	.728
14	Diamondbacks	1788-1836	.493	3,624	1,788	1,836	123,973	16,492	31,804	6,502	921	3,851	15,727	12,002	1,145	26,937	2,033	790	139,295	51,701	11,274	1,184	991	1,018	2,620	.257	.325	.417	.743
15	Phillies	2397-2457	.494	4,854	2,397	2,457	166,201	21,905	42,628	8,449	1,040	4,775	20,755	16,603	1,628	34,530	3,047	931	187,454	67,482	14,264	1,765	1,257	1,531	3,408	.256	.328	.406	.734
16	Cubs	2397-2453	.494	4,852	2,397	2,453	165,856	21,766	42,645	8,306	916	5,223	20,668	15,441	1,597	34,707	2,455	1,183	186,021	68,452	14,445	1,915	1,212	1,349	3,604	.257	.324	.413	.737
17	Mets	2401-2450	.495	4,851	2,401	2,450	164,900	21,340	42,022	8,203	831	4,779	20,293	16,051	1,551	33,080	2,967	1,218	185,743	66,224	13,813	1,912	1,329	1,472	3,572	.255	.324	.402	.726
18	Blue Jays	2432-2422	.501	4,855	2,432	2,422	166,617	23,037	43,360	9,016	846	5,660	21,944	15,826	1,744	33,275	2,851	1,057	186,474	71,048	15,522	867	1,420	882	3,825	.260	.328	.426	.755
19	Rangers	2448-2407	.504	4,856	2,448	2,407	167,529	24,317	44,819	8,823	869	5,845	23,113	15,855	1,601	33,741	2,909	1,202	187,587	72,915	15,537	1,147	1,455	1,031	3,689	.268	.334	.435	.769
20	White Sox	2451-2400	.505	4,854	2,451	2,400	165,924	22,878	43,760	8,035	880	5,446	21,831	15,407	1,598	31,717	3,072	1,422	185,688	69,893	14,361	1,341	1,418	960	3,798	.264	.330	.421	.751
21	Astros	2463-2391	.507	4,855	2,463	2,391	165,176	22,119	42,800	8,556	872	4,933	20,960	16,200	1,806	33,922	3,444	1,440	186,362	67,899	14,361	1,834	1,346	1,309	3,726	.259	.330	.411	.741
22	Angels	2486-2369	.512	4,855	2,486	2,369	166,237	22,507	43,906	8,212	793	4,900	21,344	15,223	1,505	30,778	3,253	1,508	185,554	68,404	13,905	1,215	1,374	1,119	3,866	.264	.329	.411	.740
23	Giants	2495-2358	.514	4,854	2,495	2,358	165,663	21,555	42,876	8,285	1,074	4,575	20,429	15,854	1,435	32,449	2,645	1,217	186,370	67,034	13,934	2,057	1,361	1,731	3,673	.259	.326	.405	.731
24	Indians	2529-2320	.522	4,849	2,529	2,320	166,602	23,692	44,441	8,980	799	5,323	22,534	16,779	1,656	32,539	3,181	1,285	187,714	70,988	15,102	1,168	1,509	1,035	3,880	.267	.337	.426	.763
25	Athletics	2538-2314	.523	4,852	2,538	2,314	165,562	22,970	42,209	8,408	693	5,352	21,817	17,997	1,599	33,150	2,560	987	187,450	68,059	14,453	896	1,396	902	3,888	.255	.331	.411	.742