what team has the best record vs another team since 2000

Since 2000, the Seattle Mariners have the best record by a team against a team, with a record of 21-6 versus the Reds.

	TEAM	REC	OPP	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	Mariners	21-6	Reds	.778	27	21	6	885	129	219	42	4	46	126	105	18	207	18	9	1,025	407	92	8	9	8	14	.247	.336	.460	.796
2	Red Sox	19-7	Reds	.731	26	19	7	887	139	236	66	4	30	135	88	5	217	12	5	991	400	100	4	7	7	19	.266	.333	.451	.784
3	Red Sox	26-10	Nationals	.722	36	26	10	1,269	212	371	79	6	48	204	124	14	273	19	2	1,420	606	133	6	7	13	30	.292	.360	.478	.838
4	Braves	20-8	Twins	.714	28	20	8	1,001	147	281	51	2	49	141	78	8	214	13	3	1,093	483	102	3	3	4	22	.281	.337	.483	.819
5	Yankees	125-51	Royals	.710	176	125	51	6,073	1,019	1,728	319	28	255	979	713	73	1,177	107	36	6,957	2,868	602	32	66	37	143	.285	.363	.472	.835
6	Cubs	17-7	Athletics	.708	24	17	7	846	144	259	47	7	33	141	82	9	169	10	10	953	419	87	6	10	5	18	.306	.370	.495	.865
7	Red Sox	31-13	Marlins	.705	44	31	13	1,505	252	433	91	9	50	241	134	14	311	32	10	1,677	692	150	9	15	11	35	.288	.348	.460	.808
8	Diamondbacks	19-8	White Sox	.704	27	19	8	903	151	231	45	8	36	145	79	8	188	18	4	1,009	400	89	4	15	3	19	.256	.316	.443	.759
9	Tigers	29-13	Cardinals	.690	42	29	13	1,431	215	404	95	7	51	208	130	10	283	16	8	1,590	666	153	6	13	9	34	.282	.343	.465	.809
10	Yankees	118-53	Twins	.690	171	118	53	5,894	922	1,650	304	28	249	888	579	48	1,155	94	31	6,602	2,757	581	25	56	35	155	.280	.346	.468	.814
11	Dodgers	26-12	Mariners	.684	38	26	12	1,279	180	311	53	6	50	173	127	17	299	23	11	1,437	526	109	6	8	7	29	.243	.318	.411	.729
12	Cubs	17-8	Orioles	.680	25	17	8	862	123	237	50	7	34	123	66	7	185	16	2	948	403	91	5	8	1	13	.275	.329	.468	.796
13	Dodgers	19-9	Twins	.679	28	19	9	981	153	277	51	5	47	149	100	6	232	26	4	1,104	479	103	6	11	6	18	.282	.349	.488	.837
14	Braves	19-9	Athletics	.679	28	19	9	945	140	232	52	4	44	137	74	10	194	14	6	1,042	424	100	5	8	4	19	.246	.305	.449	.753
15	Yankees	19-9	Cubs	.679	28	19	9	990	139	257	46	2	37	134	120	8	221	18	7	1,138	418	85	11	9	7	23	.260	.342	.422	.764
16	Giants	25-12	Rangers	.676	37	25	12	1,224	156	298	52	6	41	145	119	7	276	16	6	1,363	485	99	6	7	6	32	.243	.312	.396	.709
17	Rangers	14-7	Cardinals	.667	21	14	7	715	89	183	30	1	21	84	45	7	154	8	4	775	278	52	3	5	2	16	.256	.304	.389	.693
18	Brewers	16-8	Orioles	.667	24	16	8	844	134	236	48	5	34	127	88	10	177	22	8	953	396	87	6	5	3	14	.280	.353	.469	.822
19	Reds	18-9	Rays	.667	27	18	9	903	131	218	39	4	34	121	96	18	247	21	6	1,027	367	77	7	3	4	12	.241	.325	.406	.732
20	Athletics	18-9	Pirates	.667	27	18	9	931	140	244	54	5	27	135	101	10	182	14	3	1,056	389	86	2	12	9	17	.262	.337	.418	.755
21	Yankees	16-8	Giants	.667	24	16	8	804	117	208	33	7	28	109	83	8	205	16	5	906	339	68	5	6	4	17	.259	.332	.422	.753
22	Angels	27-14	Rockies	.659	41	27	14	1,434	257	412	71	3	70	247	140	19	286	29	9	1,615	699	144	8	14	8	36	.287	.355	.487	.843
23	Marlins	25-13	Orioles	.658	38	25	13	1,345	200	379	69	7	43	193	98	17	271	29	5	1,485	591	119	12	13	5	16	.282	.335	.439	.775
24	Twins	21-11	Padres	.656	32	21	11	1,086	147	275	48	1	40	143	91	19	232	27	8	1,216	445	89	14	6	8	19	.253	.320	.410	.730
25	Mariners	17-9	Pirates	.654	26	17	9	864	107	205	46	0	30	99	71	12	223	14	4	959	341	76	3	9	4	22	.237	.301	.395	.696