Between the 2017 and 2021 seasons, the Baltimore Orioles had the worst record by a team, with a record of 253-455.

	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	Orioles	253-455	.357	708	253	455	24,199	3,027	5,984	1,131	74	905	2,900	1,891	270	6,227	270	102	26,584	9,978	2,110	74	150	56	518	.247	.307	.412	.720
2	Tigers	275-430	.390	705	275	430	23,868	2,893	5,856	1,179	160	712	2,769	1,959	215	6,330	299	115	26,268	9,491	2,051	53	173	62	501	.245	.306	.398	.704
3	Marlins	295-412	.417	707	295	412	23,885	2,868	5,842	1,066	101	686	2,731	1,977	303	6,225	348	134	26,458	9,168	1,853	149	144	121	509	.245	.309	.384	.693
4	Royals	297-411	.419	708	297	411	23,952	2,965	5,976	1,172	129	741	2,805	1,866	244	5,666	498	161	26,347	9,629	2,042	104	181	60	524	.249	.308	.402	.710
5	Rangers	305-403	.431	708	305	403	23,764	3,195	5,682	1,122	102	883	3,019	2,233	318	6,484	473	160	26,576	9,657	2,107	95	166	65	458	.239	.311	.406	.717
6	Pirates	306-401	.433	707	306	401	23,830	2,946	5,895	1,170	153	654	2,802	2,114	270	5,504	277	144	26,538	9,333	1,977	158	166	148	496	.247	.314	.392	.705
7	Padres	323-385	.456	708	323	385	23,589	2,957	5,632	1,077	118	845	2,818	2,225	228	6,406	419	158	26,374	9,480	2,040	172	160	115	499	.239	.309	.402	.710
8	Reds	324-384	.458	708	324	384	23,731	3,179	5,864	1,106	106	930	3,052	2,408	364	6,100	342	143	26,829	9,972	2,142	164	162	127	528	.247	.324	.420	.744
9	White Sox	329-378	.465	707	329	378	23,969	3,172	6,094	1,144	125	836	3,036	1,969	310	6,500	309	128	26,517	9,996	2,105	120	149	59	520	.254	.317	.417	.734
10	Angels	335-373	.473	708	335	373	23,886	3,217	5,837	1,130	89	895	3,078	2,326	294	5,658	390	120	26,740	9,830	2,114	64	170	140	551	.244	.317	.412	.729
11	Mets	336-372	.475	708	336	372	23,835	3,124	5,900	1,165	104	898	3,011	2,303	364	5,969	259	125	26,771	9,967	2,167	127	142	134	539	.248	.322	.418	.740
12	Phillies	337-371	.476	708	337	371	23,845	3,181	5,809	1,191	126	855	3,038	2,431	263	6,272	318	96	26,836	9,817	2,172	142	155	158	470	.244	.319	.412	.730
13	Diamondbacks	337-371	.476	708	337	371	24,104	3,266	5,886	1,270	172	818	3,111	2,396	266	6,202	336	92	27,070	9,954	2,260	141	163	145	472	.244	.317	.413	.730
14	Blue Jays	339-369	.479	708	339	369	23,968	3,276	5,926	1,248	59	1,036	3,142	2,249	217	5,954	265	100	26,645	10,400	2,343	62	149	55	529	.247	.316	.434	.750
15	Rockies	349-359	.493	708	349	359	24,166	3,453	6,296	1,255	171	871	3,317	2,167	206	6,207	343	130	26,925	10,506	2,297	210	176	145	507	.261	.324	.435	.759
16	Giants	350-358	.494	708	350	358	24,152	3,023	5,930	1,223	123	750	2,898	2,187	226	6,066	285	118	26,872	9,649	2,096	128	179	156	528	.246	.312	.400	.711
17	Mariners	352-356	.497	708	352	356	23,848	3,136	5,787	1,112	93	874	3,005	2,247	308	6,106	397	159	26,633	9,707	2,079	69	161	68	469	.243	.314	.407	.721
18	Nationals	363-345	.513	708	363	345	23,935	3,480	6,246	1,277	115	885	3,322	2,522	287	5,678	432	130	27,098	10,408	2,277	175	179	204	537	.261	.336	.435	.771
19	Twins	373-335	.527	708	373	335	24,183	3,490	6,149	1,273	96	998	3,339	2,363	263	5,937	238	98	27,047	10,608	2,367	64	174	98	455	.254	.325	.439	.764
20	Cubs	376-333	.530	709	376	333	23,805	3,367	5,910	1,137	123	930	3,210	2,510	387	6,413	283	140	27,021	10,083	2,190	159	160	180	543	.248	.328	.424	.751
21	Braves	382-325	.540	707	382	325	24,163	3,484	6,195	1,279	107	931	3,347	2,392	282	5,967	338	118	27,163	10,481	2,317	166	160	198	460	.256	.329	.434	.762
22	Cardinals	382-324	.541	706	382	324	23,520	3,230	5,820	1,112	90	860	3,076	2,362	340	5,966	367	124	26,590	9,692	2,062	177	191	126	478	.247	.323	.412	.735
23	Athletics	391-317	.552	708	391	317	23,907	3,414	5,849	1,281	88	988	3,248	2,476	343	6,083	255	87	26,954	10,270	2,357	45	183	72	548	.245	.322	.430	.752
24	Brewers	395-314	.557	709	395	314	23,833	3,240	5,807	1,136	86	961	3,088	2,520	306	6,639	450	130	26,925	9,998	2,183	116	150	142	519	.244	.322	.420	.742
25	Red Sox	401-307	.566	708	401	307	24,640	3,683	6,510	1,450	107	921	3,482	2,429	239	5,790	370	122	27,537	10,937	2,478	50	179	152	549	.264	.334	.444	.778