team with best run differential in a season from 1970 to 2000

Between the 1970 and 2000 seasons, the New York Yankees had the highest run differential by a team in a season, with a differential of 309 runs in 1998.

	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	309	1998	162	.704	114	48	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
2	Astros	254	1998	162	.630	102	60	5,641	874	1,578	326	28	166	818	621	72	1,122	155	51	6,441	2,458	520	58	49	52	146	.280	.356	.436	.792
3	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
4	Braves	245	1998	162	.654	106	56	5,484	826	1,489	297	26	215	794	548	61	1,062	98	43	6,215	2,483	538	76	46	37	104	.272	.342	.453	.795
5	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
6	Indians	233	1995	144	.694	100	44	5,028	840	1,461	279	23	207	803	542	35	766	132	53	5,684	2,407	509	31	48	40	128	.291	.361	.479	.839
7	Diamondbacks	232	1999	162	.617	100	62	5,658	908	1,566	289	46	216	865	588	48	1,045	137	39	6,415	2,595	551	61	60	52	94	.277	.347	.459	.805
8	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
9	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
10	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
11	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
12	Braves	210	1997	162	.623	101	61	5,528	791	1,490	268	37	174	755	597	52	1,160	108	58	6,312	2,354	479	83	52	45	143	.270	.343	.426	.769
13	Braves	208	1993	162	.642	104	58	5,515	767	1,444	239	29	169	712	560	36	946	125	48	6,234	2,248	437	73	50	46	127	.262	.331	.408	.739
14	Mets	205	1986	162	.667	108	54	5,558	783	1,462	261	31	148	730	631	31	968	118	48	6,348	2,229	440	75	53	68	122	.263	.339	.401	.740
15	Yankees	203	1997	162	.593	96	66	5,710	891	1,636	325	23	161	846	676	37	954	99	58	6,527	2,490	509	34	70	51	138	.287	.362	.436	.798
16	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
17	Blue Jays	190	1987	162	.593	96	66	5,635	845	1,514	277	38	215	790	555	38	970	126	50	6,293	2,512	530	30	35	45	136	.269	.336	.446	.782
18	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
19	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
20	Tigers	186	1984	162	.642	104	58	5,644	829	1,529	254	46	187	788	602	34	941	106	68	6,373	2,436	487	48	45	51	102	.271	.342	.432	.774
21	Indians	183	1996	161	.615	99	62	5,681	952	1,665	335	23	218	904	671	43	844	160	50	6,486	2,700	576	34	57	44	164	.293	.369	.475	.844
22	Athletics	180	1988	162	.642	104	58	5,602	800	1,474	251	22	156	752	580	65	926	129	54	6,356	2,237	429	54	55	29	142	.263	.336	.399	.736
23	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
24	Braves	179	1999	162	.636	103	59	5,569	840	1,481	309	23	197	791	608	53	962	148	66	6,351	2,427	529	74	47	62	120	.266	.341	.436	.777
25	Yankees	179	1985	161	.602	97	64	5,458	839	1,458	272	31	176	793	620	50	771	155	53	6,236	2,320	479	48	60	50	119	.267	.344	.425	.769