largest run differential by a team in a season with a losing record

The St. Louis Maroons have the highest run differential by a team in a season, with a differential of 458 runs in 1884.

	TEAM	DIFF	L	REC	SEASON	W	L%	W%	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	Maroons	458	19	94-19	1884	94	.168	.832	114	4,285	887	1,251	259	41	32		181		542			4,466	1,688	332					.292		.394
2	Yankees	411	45	106-45	1939	106	.298	.702	152	5,300	967	1,521	259	55	166	904	701	36	543	72	37	6,129	2,388	480	92			99	.287	.374	.451	.825
3	Yankees	371	44	110-44	1927	110	.286	.714	155	5,354	976	1,644	291	103	158	907	642	22	610	90	64	6,222	2,615	552	204				.307	.384	.488	.872
4	Browns	370	40	95-40	1887	95	.296	.704	138	5,048	1,131	1,550	261	78	39	862	442	67	342	581		5,557	2,084	378					.307	.371	.413	.783
5	White Stockings	367	14	52-14	1876	52	.212	.788	66	2,748	624	926	131	32	8	441	70		45			2,818	1,145	171					.337		.417
6	White Stockings	364	25	87-25	1885	87	.223	.777	113	4,093	834	1,079	184	75	54	606	340		429			4,433	1,575	313					.264		.385
7	Orioles	363	43	87-43	1895	87	.331	.669	132	4,725	1,009	1,530	235	89	25	828	355	106	243	310		5,311	2,018	349	125				.324	.384	.427	.811
8	Beaneaters	360	39	93-39	1897	93	.295	.705	135	4,937	1,025	1,574	230	83	45	885	423	47	263	233		5,521	2,105	358	114				.319	.378	.426	.804
9	Reds	353	42	93-42	1891	93	.311	.689	139	4,889	1,028	1,341	163	100	52	776	651	66	499	447		5,606	1,860	315					.274	.367	.380	.748
10	Orioles	352	39	89-39	1894	89	.305	.695	129	4,799	1,171	1,647	271	150	33	976	516	98	200	324		5,564	2,317	454	151				.343	.418	.483	.901
11	Browns	352	46	93-46	1886	93	.331	.669	139	5,009	944	1,365	206	85	20	655	400	52	425	336		5,461	1,801	311					.273	.333	.360	.692
12	White Stockings	345	34	90-34	1886	90	.274	.726	126	4,378	900	1,223	198	87	53	673	460		513	213		4,838	1,754	338					.279		.401
13	Dodgers	334	51	111-51	2022	111	.315	.685	162	5,526	847	1,418	325	31	212	812	607	56	1,374	98	18	6,245	2,441	568	3	53	22	85	.257	.333	.442	.775
14	Yankees	334	51	102-51	1936	102	.333	.667	155	5,591	1,065	1,676	315	83	182	997	700	33	593	77	40	6,391	2,703	580	67				.300	.381	.483	.864
15	Pirates	334	36	103-36	1902	103	.259	.741	142	4,926	774	1,410	189	95	18	660	372	64	440	222		5,480	1,843	302	118				.286	.344	.374	.718
16	Orioles	333	39	90-39	1896	90	.302	.698	132	4,719	995	1,548	207	100	23	854	386	120	201	441		5,323	2,024	330	98				.328	.393	.429	.822
17	Cubs	323	36	116-36	1906	116	.237	.763	155	5,018	704	1,316	181	71	20	539	448	45	516	283		5,742	1,699	272	231				.262	.328	.339	.667
18	Gothams	321	27	85-27	1885	85	.241	.759	112	4,029	691	1,085	150	82	16	464	221		312			4,250	1,447	248					.269		.359
19	Metropolitans	311	32	75-32	1884	75	.299	.701	112	4,012	734	1,052	155	64	22		203	35	315			4,250	1,401	241					.262	.304	.349	.653
20	Orioles	310	53	96-53	1898	96	.356	.644	154	5,242	933	1,584	154	77	12	757	519	160	316	250		6,000	1,928	243	79				.302	.382	.368	.750
21	Yankees	309	48	114-48	1998	114	.296	.704	162	5,643	965	1,625	290	31	207	907	653	57	1,025	153	63	6,444	2,598	528	32	59	34	145	.288	.364	.460	.825
22	Yankees	308	52	102-52	1937	102	.338	.662	157	5,487	979	1,554	282	73	174	921	712	34	607	60	36	6,294	2,504	529	61				.283	.369	.456	.825
23	Yankees	307	59	94-59	1931	94	.386	.614	155	5,608	1,067	1,667	276	78	155	990	750	28	554	139	68	6,473	2,564	509	87				.297	.383	.457	.840
24	Mariners	300	46	116-46	2001	116	.284	.716	162	5,680	927	1,637	310	38	169	881	614	62	989	174	42	6,474	2,530	517	48	70	54	112	.288	.360	.445	.805
25	Yankees	294	51	103-51	1942	103	.331	.669	154	5,305	801	1,429	223	57	108	744	591	29	556	69	33	6,009	2,090	388	84			103	.269	.346	.394	.740