Since 1969, the Miami Marlins have the worst record by a team, with a record of 2325-2741.

	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	Marlins	2325-2741	.459	5,066	2,325	2,741	172,211	21,321	43,877	8,346	984	4,615	20,215	15,573	1,835	38,336	3,258	1,296	192,616	68,036	13,945	1,719	1,278	1,203	3,807	.255	.321	.395	.716
2	Rockies	2330-2746	.459	5,076	2,330	2,746	174,321	25,088	47,080	9,296	1,310	5,732	23,857	16,005	1,582	37,801	3,060	1,370	195,271	76,192	16,338	2,005	1,358	1,209	3,868	.270	.335	.437	.772
3	Padres	4158-4740	.467	8,900	4,158	4,740	300,876	36,079	75,028	13,275	1,761	7,270	33,926	28,638	2,126	59,524	6,009	2,605	337,602	113,635	22,306	3,712	2,250	2,687	6,504	.249	.317	.378	.695
4	Royals	4238-4650	.477	8,890	4,238	4,650	304,072	38,861	79,850	14,928	2,291	7,005	36,676	26,013	2,464	52,186	7,097	2,900	337,594	120,375	24,224	2,372	2,673	1,868	6,782	.263	.323	.396	.719
5	Mariners	3629-3973	.477	7,604	3,629	3,973	259,387	33,765	66,647	12,425	1,259	7,738	32,077	24,597	2,355	49,790	5,025	2,170	290,362	104,804	21,422	1,947	2,076	1,664	5,683	.257	.325	.404	.729
6	Nationals	4289-4599	.483	8,892	4,289	4,599	300,726	37,246	76,299	14,722	1,790	7,608	35,006	28,268	2,629	57,223	6,552	2,778	337,790	117,425	24,120	3,880	2,287	2,881	6,505	.254	.321	.390	.712
7	Tigers	4298-4593	.483	8,892	4,298	4,593	303,821	40,084	78,707	14,025	2,003	9,150	38,015	28,865	2,330	57,917	4,417	2,367	339,678	124,188	25,178	2,167	2,495	1,853	6,831	.259	.326	.409	.734
8	Pirates	4298-4585	.484	8,889	4,298	4,585	303,054	37,893	77,920	14,660	2,130	7,372	35,784	27,086	2,719	58,190	5,798	2,659	338,854	118,956	24,162	3,501	2,494	2,823	6,388	.257	.321	.393	.714
9	Rangers	4324-4564	.486	8,893	4,324	4,564	304,367	41,200	79,578	14,468	1,612	9,189	38,963	28,931	2,478	57,269	5,493	2,579	340,764	124,837	25,269	2,440	2,548	1,975	6,823	.261	.328	.410	.738
10	White Sox	4323-4559	.487	8,891	4,323	4,559	302,592	39,710	78,639	13,912	1,686	8,752	37,633	27,655	2,633	54,917	5,408	2,610	338,095	122,179	24,350	2,667	2,548	1,874	6,911	.260	.325	.404	.729
11	Brewers	4337-4558	.488	8,899	4,337	4,558	302,065	39,551	77,331	14,414	1,756	8,713	37,471	29,077	2,714	58,991	5,996	2,734	339,438	121,396	24,883	3,165	2,417	2,160	6,612	.256	.325	.402	.726
12	Diamondbacks	2114-2214	.488	4,328	2,114	2,214	147,675	19,784	37,628	7,727	1,068	4,622	18,852	14,381	1,428	32,678	2,513	902	166,017	61,357	13,417	1,325	1,208	1,091	3,086	.255	.324	.415	.740
13	Rays	2119-2206	.490	4,325	2,119	2,206	147,033	19,212	37,308	7,434	850	4,505	18,278	13,983	1,676	33,465	3,225	1,228	164,587	59,957	12,789	738	1,157	685	3,030	.254	.323	.408	.731
14	Cubs	4355-4529	.490	8,893	4,355	4,529	303,213	39,100	77,697	14,264	1,837	8,657	36,892	28,705	2,459	58,981	4,934	2,418	340,234	121,606	24,758	3,529	2,328	2,729	6,536	.256	.323	.401	.724
15	Twins	4374-4515	.492	8,892	4,374	4,515	305,247	40,457	80,733	15,083	1,938	7,908	38,143	28,313	2,627	54,577	4,868	2,462	341,012	123,416	24,929	2,259	2,566	2,069	7,315	.264	.330	.404	.734
16	Guardians	4408-4466	.497	8,876	4,408	4,466	303,184	40,546	79,436	14,635	1,543	8,559	38,321	29,468	2,560	53,966	5,784	2,714	340,430	122,834	24,737	2,515	2,703	1,970	7,071	.262	.330	.405	.735
17	Angels	4432-4465	.498	8,899	4,432	4,465	302,686	39,309	78,098	13,736	1,529	8,294	37,054	28,264	2,556	54,859	5,585	2,780	338,856	119,774	23,559	2,889	2,461	2,146	6,977	.258	.324	.396	.720
18	Blue Jays	3788-3816	.498	7,607	3,788	3,816	260,613	35,148	67,762	13,540	1,492	8,263	33,338	24,176	2,427	49,023	4,577	1,963	290,847	109,075	23,295	1,504	2,127	1,403	5,934	.260	.326	.419	.745
19	Phillies	4444-4450	.500	8,898	4,444	4,450	303,324	39,222	77,511	14,596	2,029	8,278	37,020	30,076	2,544	59,946	5,958	2,257	341,556	120,999	24,903	3,189	2,423	2,950	6,280	.256	.325	.399	.724
20	Mets	4456-4433	.501	8,892	4,456	4,433	301,137	37,629	75,882	13,883	1,597	7,877	35,506	29,438	2,580	57,716	5,544	2,429	339,097	116,590	23,357	3,551	2,391	2,845	6,625	.252	.322	.387	.709
21	Orioles	4471-4404	.504	8,879	4,471	4,404	303,274	40,206	78,404	14,322	1,292	9,591	38,168	29,619	2,528	55,328	4,700	2,165	340,111	124,083	25,205	2,196	2,494	1,963	7,151	.259	.327	.409	.736
22	Reds	4521-4375	.508	8,903	4,521	4,375	302,278	39,776	77,490	14,616	1,693	8,857	37,503	30,193	2,622	60,764	6,996	2,707	341,065	122,063	25,166	3,559	2,413	2,800	6,346	.256	.327	.404	.731
23	Giants	4530-4369	.509	8,900	4,530	4,369	302,266	38,629	76,847	14,077	1,937	8,013	36,346	30,036	2,378	58,275	5,193	2,523	340,841	118,837	24,027	3,763	2,398	3,226	6,570	.254	.324	.393	.717
24	Athletics	4555-4340	.512	8,895	4,555	4,340	301,394	40,145	75,905	13,918	1,395	9,074	37,865	31,461	2,628	57,923	6,205	2,601	340,399	119,835	24,387	2,364	2,552	1,810	6,811	.252	.325	.398	.723
25	Astros	4565-4332	.513	8,899	4,565	4,332	302,434	38,928	77,737	14,559	1,895	7,830	36,709	29,033	2,636	56,673	6,717	2,855	340,038	119,576	24,284	3,466	2,469	2,749	6,561	.257	.325	.395	.720