team with best run differential in a season from 1940 to 1990

Between the 1940 and 1990 seasons, the New York Yankees had the highest run differential by a team in a season, with a differential of 294 runs in 1942.

	TEAM	DIFF	SEASON	G	W%	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	Yankees	294	1942	154	.669	103	51	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
2	Cardinals	282	1944	157	.682	105	49	5,474	772	1,507	274	59	100	722	543	27	471	37		6,168	2,199	433	124			96	.275	.344	.402	.745
3	Cardinals	275	1942	156	.688	106	48	5,422	755	1,454	282	69	60	680	551	22	505	71		6,125	2,054	411	130			90	.268	.338	.379	.717
4	Indians	273	1948	156	.626	97	58	5,446	840	1,534	242	54	155	801	646	24	575	54	44	6,201	2,349	451	85			132	.282	.360	.431	.792
5	Dodgers	266	1953	155	.682	105	49	5,373	955	1,529	274	59	208	887	655	35	686	90	47	6,138	2,545	541	75			115	.285	.366	.474	.840
6	Orioles	262	1969	162	.673	109	53	5,518	779	1,465	234	29	175	722	634	43	806	82	45	6,328	2,282	438	74	59	62	138	.265	.343	.414	.756
7	Reds	254	1975	162	.667	108	54	5,581	840	1,515	278	37	124	779	691	35	916	168	36	6,418	2,239	439	66	45	67	122	.271	.353	.401	.754
8	Yankees	254	1953	151	.656	99	52	5,194	801	1,420	226	52	139	762	655	34	643	34	44	5,960	2,167	417	77			105	.273	.358	.417	.776
9	Indians	242	1954	156	.721	111	43	5,222	746	1,368	188	39	156	714	637	23	668	30	33	6,048	2,102	383	107	59		114	.262	.341	.403	.744
10	Yankees	242	1954	155	.669	103	51	5,226	805	1,400	215	59	133	747	650	20	632	34	41	6,027	2,132	407	84	47		94	.268	.348	.408	.756
11	Dodgers	237	1974	162	.630	102	60	5,557	798	1,511	231	34	139	744	597	28	820	149	75	6,332	2,227	404	86	64	95	117	.272	.342	.401	.743
12	Dodgers	230	1942	155	.675	104	50	5,286	742	1,398	263	34	62	678	572	14	485	81		5,991	1,915	359	119			95	.264	.338	.362	.700
13	Red Sox	229	1949	155	.623	96	58	5,320	896	1,500	272	36	131	835	835	17	510	43	25	6,250	2,237	439	78			169	.282	.381	.420	.802
14	Dodgers	228	1949	156	.630	97	57	5,400	879	1,477	236	47	152	816	638	33	570	117		6,173	2,263	435	102			127	.274	.354	.419	.773
15	Yankees	226	1956	154	.630	97	57	5,312	857	1,433	193	55	190	788	615	30	755	51	37	6,075	2,306	438	82	36	40	102	.270	.347	.434	.781
16	Yankees	226	1947	155	.630	97	57	5,308	794	1,439	230	72	115	748	610	27	581	27	23	6,031	2,158	417	86			122	.271	.349	.407	.756
17	Reds	224	1976	162	.630	102	60	5,702	857	1,599	271	63	141	802	681	28	902	210	57	6,538	2,419	475	67	60	63	103	.280	.357	.424	.781
18	Yankees	224	1948	154	.610	94	60	5,324	857	1,480	251	75	139	806	623	23	478	24	24	6,048	2,298	465	78			136	.278	.356	.432	.788
19	Red Sox	223	1950	154	.610	94	60	5,516	1,027	1,665	287	61	161	974	719	25	580	32	17	6,322	2,557	509	62			153	.302	.385	.464	.848
20	Yankees	223	1950	155	.636	98	56	5,361	914	1,511	234	70	159	860	687	31	458	41	28	6,164	2,362	463	85			122	.282	.367	.441	.807
21	Dodgers	219	1941	157	.649	100	54	5,485	800	1,494	286	69	101	747	600	27	535	36		6,218	2,221	456	106			103	.272	.347	.405	.752
22	Orioles	218	1970	162	.667	108	54	5,545	792	1,424	213	25	179	748	717	44	952	84	39	6,416	2,224	417	64	46	64	110	.257	.344	.401	.745
23	Yankees	215	1961	163	.673	109	53	5,559	827	1,461	194	40	240	781	543	35	785	28	18	6,239	2,455	474	57	45	45	120	.263	.330	.442	.771
24	Phillies	213	1976	162	.623	101	61	5,528	770	1,505	259	45	110	708	542	40	793	127	70	6,236	2,184	414	59	67	55	119	.272	.338	.395	.733
25	Orioles	212	1971	158	.639	101	57	5,303	742	1,382	207	25	158	702	672	46	844	66	38	6,143	2,113	390	85	37	69	127	.261	.347	.398	.745