team with best run differential in a single season from 1990 to 2010

Between the 1990 and 2010 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	Mariners	300	2001	162	.716	116	46	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
3	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
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	Athletics	239	2001	162	.630	102	60	5,573	884	1,469	334	22	199	835	640	88	1,021	68	29	6,385	2,444	555	25	59	57	131	.264	.345	.439	.784
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	Red Sox	210	2007	162	.593	96	66	5,589	867	1,561	352	35	166	829	689	64	1,042	96	24	6,426	2,481	553	30	54	54	146	.279	.362	.444	.806
9	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
10	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
11	Angels	207	2002	162	.611	99	63	5,678	851	1,603	333	32	152	811	462	74	805	117	51	6,327	2,456	517	49	64	42	105	.282	.341	.433	.773
12	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
13	Yankees	200	2002	161	.640	103	58	5,601	897	1,540	314	12	223	857	640	72	1,171	100	38	6,377	2,547	549	23	41	48	150	.275	.354	.455	.809
14	Cardinals	196	2004	162	.648	105	57	5,555	855	1,544	319	24	214	817	548	51	1,085	111	47	6,297	2,553	557	73	70	64	121	.278	.344	.460	.804
15	Red Sox	194	2002	162	.574	93	69	5,640	859	1,560	348	33	177	810	545	72	944	80	28	6,332	2,505	558	22	53	39	139	.277	.345	.444	.789
16	Yankees	191	2007	162	.580	94	68	5,717	968	1,656	326	32	201	929	637	78	991	123	40	6,527	2,649	559	41	54	32	138	.290	.366	.463	.829
17	Cubs	184	2008	161	.602	97	64	5,588	855	1,552	329	21	184	811	636	50	1,186	87	34	6,384	2,475	534	65	45	48	134	.278	.354	.443	.797
18	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
19	Red Sox	181	2004	162	.605	98	64	5,720	949	1,613	373	25	222	912	659	69	1,189	68	30	6,515	2,702	620	12	55	39	123	.282	.360	.472	.832
20	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
21	Giants	178	2000	162	.599	97	65	5,519	925	1,535	304	44	226	889	709	51	1,032	79	39	6,418	2,605	574	73	66	60	131	.278	.362	.472	.834
22	Giants	172	1993	162	.636	103	59	5,557	808	1,534	269	33	168	759	516	46	930	120	65	6,271	2,373	470	102	50	88	121	.276	.340	.427	.767
23	Cardinals	171	2005	162	.617	100	62	5,538	805	1,494	287	26	170	757	534	62	947	83	36	6,246	2,343	483	77	35	60	127	.270	.339	.423	.762
24	Dodgers	169	2009	162	.586	95	67	5,592	780	1,511	278	39	145	739	607	63	1,068	116	48	6,384	2,302	462	78	44	76	141	.270	.346	.412	.758
25	Yankees	169	1999	162	.605	98	64	5,568	900	1,568	302	36	193	855	718	55	978	104	57	6,416	2,521	531	22	53	47	137	.282	.366	.453	.819