The Cleveland Spiders have the fewest wins - losses by a team in a season, with -114 in 1899.

	TEAM	W-L	W	L	SEASON	W%	L%	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Spiders	-114	20	134	1899	.130	.870	154	5,279	529	1,333	142	50	12	454	289	65	280	127		5,690	1,611	204	57				.253	.299	.305	.605
2	Alleghenys	-90	23	113	1890	.169	.831	138	4,739	597	1,088	160	43	20	426	408	66	460	208		5,213	1,394	223					.230	.300	.294	.594
3	Colonels	-84	27	111	1889	.196	.804	140	4,955	632	1,249	170	75	22	503	320	41	521	203		5,316	1,635	267					.252	.303	.330	.633
4	Athletics	-81	36	117	1916	.235	.765	154	5,010	447	1,212	169	65	19	380	406	30	631	151		5,603	1,568	253	157				.242	.303	.313	.616
5	White Sox	-80	41	121	2024	.253	.747	162	5,383	507	1,187	226	9	133	485	395	43	1,403	90	33	5,866	1,830	368	18	27	8	116	.221	.278	.340	.618
6	Mets	-80	40	120	1962	.250	.750	161	5,492	617	1,318	166	40	139	573	616	32	991	59	48	6,242	1,981	345	58	44	29	122	.240	.318	.361	.679
7	Braves	-77	38	115	1935	.248	.752	153	5,309	575	1,396	233	33	75	544	353	19	436	20		5,761	1,920	341	80			139	.263	.311	.362	.673
8	Tigers	-76	43	119	2003	.265	.735	162	5,466	591	1,312	201	39	153	553	443	47	1,099	98	63	6,070	2,050	393	65	49	24	114	.240	.300	.375	.675
9	Senators	-75	38	113	1904	.252	.748	157	5,149	437	1,170	171	57	10	348	283	59	756	150		5,606	1,485	238	115				.227	.275	.288	.564
10	Browns	-73	29	102	1897	.221	.779	133	4,673	592	1,285	151	67	32	496	354	76	314	172		5,183	1,666	250	80				.275	.336	.357	.693
11	Browns	-72	39	111	1898	.260	.740	154	5,214	571	1,290	149	55	13	470	383	84	405	104		5,798	1,588	217	117				.247	.309	.305	.614
12	Pirates	-70	42	112	1952	.273	.727	155	5,193	515	1,201	181	30	92	478	486	26	724	43	41	5,775	1,718	303	70			104	.231	.300	.331	.631
13	Orioles	-68	47	115	2018	.290	.710	162	5,507	622	1,317	242	15	188	593	422	57	1,412	81	22	6,034	2,153	445	13	35	19	132	.239	.298	.391	.689
14	Phillies	-68	43	111	1941	.279	.721	155	5,233	501	1,277	188	38	64	467	451	22	595	65		5,796	1,733	290	90			142	.244	.307	.331	.638
15	Browns	-68	43	111	1939	.279	.721	156	5,422	733	1,453	242	50	91	696	558	20	606	48	38	6,132	2,068	383	132			121	.268	.339	.381	.720
16	Red Sox	-68	43	111	1932	.279	.721	154	5,294	566	1,330	253	57	53	529	470	12	537	46	46	5,856	1,856	363	80				.251	.314	.351	.664
17	Athletics	-68	36	104	1919	.257	.743	140	4,730	459	1,156	175	71	35	396	349	30	565	103		5,234	1,578	281	125				.244	.300	.334	.634
18	Senators	-68	42	110	1909	.276	.724	156	4,983	382	1,113	149	41	9	306	321	42	618	136		5,541	1,371	199	195				.223	.276	.275	.551
19	Tigers	-67	47	114	2019	.292	.708	161	5,549	582	1,333	292	41	149	556	391	48	1,595	57	20	6,039	2,154	482	9	42	14	108	.240	.294	.388	.682
20	Phillies	-67	42	109	1942	.278	.722	151	5,060	394	1,174	168	37	44	356	392	16	487	37		5,557	1,548	249	89			109	.232	.289	.306	.595
21	Phillies	-66	43	109	1928	.283	.717	152	5,234	660	1,396	257	47	85	606	503	21	510	53		5,917	2,002	389	159				.267	.333	.382	.716
22	Athletics	-66	43	109	1915	.283	.717	154	5,081	545	1,204	183	72	16	440	436	54	634	127	89	5,708	1,579	271	137				.237	.304	.311	.615
23	Nationals	-64	28	92	1886	.233	.767	125	4,082	445	856	135	51	23	331	265		582	143		4,347	1,162	209					.210		.285
24	Quakers	-64	17	81	1883	.173	.827	99	3,576	437	859	181	48	3	299	141		355			3,717	1,145	232					.240		.320
25	Rustlers	-63	44	107	1911	.291	.709	156	5,308	699	1,417	249	54	37	594	554	31	577	169		6,044	1,885	340	151				.267	.340	.355	.695