Since March 31, 2014, the Chicago White Sox have the worst record by a team, with a record of 746-963.

	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	White Sox	746-963	.437	1,709	746	963	58,065	7,075	14,439	2,759	249	1,772	6,766	4,507	664	14,729	795	314	63,854	23,012	4,780	251	367	167	1,276	.249	.308	.396	.705
2	Marlins	749-959	.439	1,708	749	959	57,889	6,805	14,397	2,616	288	1,543	6,472	4,658	615	14,399	945	330	63,940	22,218	4,447	395	383	289	1,337	.249	.310	.384	.693
3	Rockies	751-959	.439	1,710	751	959	58,441	7,987	15,173	3,063	404	1,964	7,649	4,886	511	14,903	811	341	64,673	24,936	5,431	411	424	307	1,262	.260	.320	.427	.747
4	Reds	769-942	.449	1,711	769	942	57,436	7,414	14,056	2,703	272	1,953	7,081	5,385	794	14,544	1,226	420	64,404	23,162	4,928	396	393	248	1,189	.245	.316	.403	.719
5	Tigers	774-932	.454	1,706	774	932	57,958	7,134	14,462	2,811	374	1,700	6,841	4,830	523	14,666	768	309	63,891	23,121	4,885	148	432	214	1,244	.250	.311	.399	.710
6	Royals	785-926	.459	1,711	785	926	57,921	7,163	14,605	2,842	353	1,607	6,810	4,393	601	12,918	1,300	391	63,663	22,974	4,802	271	477	179	1,227	.252	.309	.397	.706
7	Pirates	796-913	.466	1,710	796	913	57,784	7,108	14,214	2,797	324	1,603	6,782	5,282	701	14,145	936	380	64,551	22,468	4,724	377	407	321	1,190	.246	.315	.389	.704
8	Orioles	806-904	.471	1,710	806	904	58,267	7,576	14,489	2,787	206	2,212	7,267	4,743	635	14,551	702	246	64,228	24,324	5,205	185	398	167	1,178	.249	.310	.417	.728
9	Rangers	807-904	.472	1,711	807	904	57,805	7,722	14,260	2,734	241	2,018	7,337	5,206	689	14,494	1,107	386	64,352	23,530	4,993	225	427	208	1,120	.247	.314	.407	.721
10	Athletics	811-900	.474	1,711	811	900	57,662	7,418	13,828	2,842	248	1,994	7,074	5,494	663	14,069	801	244	64,390	23,148	5,084	162	409	176	1,301	.240	.311	.401	.713
11	Diamondbacks	812-896	.475	1,708	812	896	58,219	7,838	14,514	2,971	434	1,869	7,428	5,501	606	14,164	1,106	290	65,193	23,960	5,274	393	474	305	1,186	.249	.318	.412	.730
12	Angels	813-896	.476	1,709	813	896	57,613	7,471	14,086	2,688	236	2,009	7,123	5,238	694	13,822	892	339	64,180	23,273	4,933	209	426	300	1,272	.244	.313	.404	.717
13	Padres	824-885	.482	1,709	824	885	57,100	7,160	13,767	2,669	263	1,852	6,828	5,345	552	14,434	1,048	356	63,798	22,518	4,784	389	412	256	1,199	.241	.310	.394	.704
14	Phillies	833-877	.487	1,710	833	877	57,995	7,501	14,331	2,821	312	1,921	7,151	5,341	623	14,683	1,035	289	64,677	23,539	5,054	334	384	316	1,150	.247	.315	.406	.721
15	Twins	845-866	.494	1,711	845	866	58,308	7,959	14,599	3,051	271	2,101	7,594	5,536	675	14,522	705	267	65,131	24,495	5,423	178	434	222	1,166	.250	.320	.420	.740
16	Nationals	847-864	.495	1,711	847	864	57,750	7,726	14,720	2,915	254	1,872	7,347	5,526	671	13,414	1,164	357	64,812	23,759	5,041	410	455	349	1,267	.255	.325	.411	.736
17	Giants	868-843	.507	1,711	868	843	58,093	7,324	14,327	2,875	324	1,713	7,001	5,365	595	14,257	723	278	64,806	22,989	4,912	297	456	316	1,256	.247	.314	.396	.710
18	Blue Jays	873-837	.511	1,710	873	837	58,032	7,945	14,629	3,044	176	2,229	7,612	5,609	582	13,612	743	260	64,824	24,712	5,449	190	411	159	1,363	.252	.322	.426	.748
19	Mets	878-833	.513	1,711	878	833	57,690	7,512	14,209	2,805	230	2,045	7,220	5,482	876	13,981	758	265	64,735	23,609	5,080	299	388	314	1,259	.246	.319	.409	.728
20	Mariners	882-828	.516	1,710	882	828	57,636	7,470	13,946	2,647	210	2,068	7,141	5,476	811	14,855	996	371	64,514	23,217	4,925	198	393	208	1,178	.242	.315	.403	.717
21	Red Sox	897-815	.524	1,712	897	815	59,289	8,365	15,505	3,434	250	1,984	7,942	5,584	616	14,043	931	294	66,073	25,391	5,668	138	446	326	1,325	.262	.329	.428	.757
22	Brewers	905-807	.529	1,712	905	807	57,424	7,605	14,030	2,755	237	2,038	7,251	5,830	657	15,258	1,299	367	64,627	23,373	5,030	336	380	307	1,290	.244	.319	.407	.726
23	Braves	904-804	.529	1,708	904	804	58,167	7,846	14,795	2,973	225	2,074	7,519	5,436	626	14,186	884	300	64,985	24,440	5,272	364	392	372	1,245	.254	.323	.420	.743
24	Cubs	907-804	.530	1,712	907	804	57,768	7,874	14,272	2,820	313	2,024	7,506	5,922	852	15,199	947	358	65,300	23,790	5,157	346	412	350	1,170	.247	.324	.412	.736
25	Rays	910-800	.532	1,710	910	800	57,860	7,502	14,281	2,886	307	1,939	7,133	5,470	785	15,035	1,122	419	64,701	23,598	5,132	161	425	214	1,124	.247	.318	.408	.726