Between the 2012 and 2014 seasons, the Washington Nationals had the best record by a team, with a record of 280-206.

	TEAM	REC	W%	G	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	Nationals	280-206	.576	486	280	206	16,593	2,073	4,236	825	79	507	1,944	1,460	137	3,821	294	86	18,484	6,740	1,411	178	116	107	340	.255	.319	.406	.725
2	Athletics	278-208	.572	486	278	208	16,593	2,209	4,072	821	90	527	2,087	1,709	139	3,669	279	80	18,634	6,654	1,438	67	126	92	323	.245	.319	.401	.720
3	Cardinals	275-211	.566	486	275	211	16,605	2,167	4,391	887	78	389	2,062	1,485	203	3,435	193	91	18,614	6,601	1,354	189	132	111	429	.264	.330	.398	.727
4	Orioles	274-212	.564	486	274	212	16,776	2,162	4,269	832	46	637	2,077	1,297	148	3,725	181	78	18,432	7,104	1,515	100	111	89	369	.254	.312	.423	.735
5	Dodgers	272-214	.560	486	272	214	16,489	2,004	4,292	852	78	388	1,911	1,476	170	3,548	320	122	18,464	6,464	1,318	200	129	124	388	.260	.325	.392	.717
6	Tigers	271-215	.558	486	271	215	16,841	2,279	4,649	896	88	494	2,196	1,485	144	3,320	200	84	18,709	7,203	1,478	92	147	137	439	.276	.337	.428	.765
7	Braves	269-217	.553	486	269	217	16,334	1,961	4,011	750	73	453	1,861	1,581	132	4,042	260	96	18,319	6,266	1,276	164	108	104	348	.246	.315	.384	.699
8	Angels	265-221	.545	486	265	221	16,776	2,273	4,458	847	92	506	2,157	1,464	155	3,600	297	106	18,664	7,007	1,445	110	159	111	400	.266	.328	.418	.745
9	Yankees	264-222	.543	486	264	222	16,470	2,087	4,132	774	63	536	1,979	1,483	175	3,523	320	84	18,356	6,640	1,373	96	132	80	368	.251	.317	.403	.720
10	Reds	263-223	.541	486	263	223	16,371	1,962	4,029	824	70	458	1,862	1,481	175	3,763	276	114	18,381	6,367	1,352	234	120	141	317	.246	.313	.389	.702
11	Pirates	261-225	.537	486	261	225	16,434	1,967	4,095	789	102	487	1,882	1,433	217	3,928	271	141	18,371	6,549	1,378	178	109	119	345	.249	.316	.399	.714
12	Rays	259-228	.532	487	259	228	16,452	2,009	4,075	809	77	457	1,921	1,687	160	3,618	270	109	18,550	6,409	1,343	101	150	88	408	.248	.321	.390	.711
13	Giants	258-228	.531	486	258	228	16,633	2,012	4,348	824	134	342	1,907	1,379	111	3,420	241	92	18,455	6,466	1,300	180	152	121	358	.261	.319	.389	.708
14	Rangers	251-236	.515	487	251	236	16,635	2,175	4,391	825	83	487	2,068	1,357	179	3,332	345	149	18,433	6,843	1,395	122	140	107	393	.264	.324	.411	.735
15	Royals	247-239	.508	486	247	239	16,730	1,975	4,391	835	100	338	1,867	1,206	137	3,065	438	106	18,299	6,440	1,273	96	130	95	392	.262	.315	.385	.700
16	Indians	245-241	.504	486	245	241	16,565	2,081	4,187	840	70	449	1,990	1,621	152	3,559	331	107	18,581	6,514	1,359	99	144	71	373	.253	.322	.393	.716
17	Brewers	239-247	.492	486	239	247	16,493	2,066	4,189	835	110	509	1,968	1,296	234	3,620	402	132	18,353	6,771	1,454	223	107	89	362	.254	.315	.411	.726
18	Red Sox	237-249	.488	486	237	249	16,806	2,221	4,380	984	65	466	2,115	1,544	185	3,842	283	75	18,770	6,892	1,515	78	157	114	380	.261	.327	.410	.737
19	Mariners	233-253	.479	486	233	253	16,502	1,877	3,931	737	76	473	1,781	1,391	121	3,844	249	100	18,204	6,239	1,286	93	97	75	329	.238	.301	.378	.679
20	Blue Jays	230-256	.473	486	230	256	16,573	2,151	4,179	802	70	560	2,036	1,485	134	3,525	313	103	18,412	6,801	1,432	97	123	75	370	.252	.317	.410	.727
21	Padres	229-257	.471	486	229	257	16,233	1,804	3,887	742	99	376	1,688	1,474	147	3,841	364	114	18,138	5,955	1,217	171	113	99	317	.239	.307	.367	.673
22	Phillies	227-259	.467	486	227	259	16,603	1,913	4,125	777	87	423	1,821	1,314	171	3,605	298	78	18,383	6,345	1,287	188	107	124	339	.248	.308	.382	.690
23	Mets	227-259	.467	486	227	259	16,481	1,898	3,981	824	72	394	1,820	1,531	147	3,898	294	107	18,441	6,131	1,290	176	106	125	336	.242	.310	.372	.682
24	Diamondbacks	226-260	.465	486	226	260	16,690	2,034	4,263	868	111	413	1,930	1,456	127	3,573	241	125	18,564	6,592	1,392	167	124	129	383	.255	.318	.395	.713
25	White Sox	221-265	.455	486	221	265	16,624	2,006	4,194	744	80	514	1,925	1,289	159	3,772	299	121	18,263	6,640	1,338	69	122	80	363	.252	.310	.399	.710