most run differential in a season from 1966 to 1983

Between the 1966 and 1983 seasons, the Baltimore Orioles had the highest run differential by a team in a season, with a differential of 262 runs in 1969.

	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	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
2	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
3	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
4	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
5	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
6	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
7	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
8	Orioles	193	1973	162	.599	97	65	5,537	754	1,474	229	48	119	692	648	43	752	146	64	6,335	2,156	396	58	49	49	126	.266	.345	.389	.734
9	Pirates	189	1971	162	.599	97	65	5,674	788	1,555	223	61	154	744	469	29	919	65	31	6,283	2,362	438	62	49	73	120	.274	.330	.416	.746
10	Dodgers	187	1977	162	.605	98	64	5,589	769	1,484	223	28	191	729	588	23	896	114	62	6,327	2,336	442	83	44	67	103	.266	.336	.418	.753
11	Yankees	180	1977	162	.617	100	62	5,605	831	1,576	267	47	184	784	533	28	681	93	57	6,260	2,489	498	46	48	49	117	.281	.344	.444	.788
12	Phillies	179	1977	162	.623	101	61	5,546	847	1,548	266	56	186	795	573	38	806	135	68	6,290	2,484	508	59	74	75	121	.279	.346	.448	.794
13	Pirates	179	1972	155	.619	96	59	5,490	691	1,505	251	47	110	654	404	25	871	49	30	6,021	2,180	408	52	50	69	110	.274	.324	.397	.721
14	Tigers	179	1968	164	.636	103	59	5,490	671	1,292	190	39	185	639	521	61	964	26	32	6,179	2,115	414	73	34	53	124	.235	.307	.385	.692
15	Orioles	175	1979	159	.642	102	57	5,371	757	1,401	258	24	181	717	608	31	847	99	49	6,106	2,250	463	42	54	52	143	.261	.336	.419	.755
16	Brewers	174	1982	163	.586	95	67	5,733	891	1,599	277	41	216	843	484	18	714	84	52	6,337	2,606	534	56	46	42	106	.279	.335	.455	.789
17	Twins	172	1969	162	.599	97	65	5,677	790	1,520	246	32	163	733	599	43	906	115	70	6,424	2,319	441	65	40	78	114	.268	.340	.408	.748
18	Royals	171	1977	162	.630	102	60	5,594	822	1,549	299	77	146	773	522	45	687	170	87	6,268	2,440	522	49	58	50	104	.277	.340	.436	.776
19	Orioles	165	1980	162	.617	100	62	5,585	805	1,523	258	29	156	751	587	21	766	111	38	6,281	2,307	443	42	46	38	158	.273	.342	.413	.755
20	Yankees	158	1980	162	.636	103	59	5,553	820	1,484	239	34	189	772	643	28	739	86	36	6,329	2,358	462	51	54	58	136	.267	.343	.425	.768
21	Yankees	155	1976	159	.610	97	62	5,555	730	1,496	231	36	120	681	470	35	616	163	65	6,156	2,159	387	50	46	36	94	.269	.328	.389	.716
22	Dodgers	154	1978	162	.586	95	67	5,437	727	1,435	251	27	149	686	610	20	818	137	52	6,225	2,187	427	111	47	76	101	.264	.338	.402	.740
23	Brewers	154	1978	162	.574	93	69	5,536	804	1,530	265	38	173	762	520	32	805	95	53	6,227	2,390	476	89	50	38	94	.276	.339	.432	.771
24	Orioles	154	1966	160	.606	97	63	5,529	755	1,426	243	35	175	703	514	39	926	55	43	6,199	2,264	453	82	35	59	119	.258	.324	.409	.733
25	Yankees	153	1978	163	.613	100	63	5,583	735	1,489	228	38	125	693	505	42	695	98	42	6,219	2,168	391	37	52	45	126	.267	.329	.388	.718