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	17-6	Reds	.739	23	17	6	785	117	203	53	4	25	113	80	5	196	9	3	879	339	82	4	5	7	18	.259	.329	.432	.761
3	Braves	18-7	Athletics	.720	25	18	7	837	126	210	46	4	36	123	68	10	174	13	6	928	372	86	5	8	4	17	.251	.312	.444	.756
4	Yankees	18-7	Cubs	.720	25	18	7	893	125	234	39	2	32	120	115	7	199	18	6	1,034	373	73	11	8	7	21	.262	.348	.418	.766
5	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
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	Diamondbacks	17-7	White Sox	.708	24	17	7	794	134	202	40	8	31	128	71	6	166	15	3	889	351	79	4	14	3	17	.254	.315	.442	.757
8	Athletics	17-7	Pirates	.708	24	17	7	837	136	231	52	5	25	131	99	9	153	14	3	959	368	82	2	12	9	17	.276	.354	.440	.794
9	Red Sox	29-12	Marlins	.707	41	29	12	1,412	240	414	86	9	48	229	126	12	290	27	10	1,573	662	143	9	14	11	35	.293	.353	.469	.822
10	Yankees	122-51	Royals	.705	173	122	51	5,966	1,002	1,699	312	27	252	963	701	73	1,154	104	36	6,837	2,821	591	31	66	37	142	.285	.363	.473	.836
11	Red Sox	23-10	Nationals	.697	33	23	10	1,149	185	332	68	5	44	178	117	12	251	15	1	1,290	542	117	6	6	12	29	.289	.359	.472	.831
12	Yankees	114-51	Twins	.691	165	114	51	5,692	886	1,594	292	27	237	853	553	46	1,103	83	28	6,369	2,651	556	25	53	34	151	.280	.346	.466	.811
13	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
14	Angels	26-12	Rockies	.684	38	26	12	1,337	247	389	68	3	65	237	135	17	255	27	8	1,510	658	136	8	13	8	31	.291	.360	.492	.852
15	Cubs	15-7	Orioles	.682	22	15	7	766	114	214	45	6	33	114	60	7	158	16	2	843	370	84	4	6	1	12	.279	.335	.483	.818
16	Dodgers	17-8	Twins	.680	25	17	8	885	137	253	48	5	40	133	88	4	208	23	4	993	431	93	5	11	4	15	.286	.349	.487	.836
17	Cubs	17-8	Mariners	.680	25	17	8	877	116	212	43	5	29	110	77	8	216	15	6	977	352	77	6	9	2	21	.242	.306	.401	.707
18	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
19	Giants	16-8	Guardians	.667	24	16	8	778	91	178	42	2	18	83	74	6	175	17	7	871	278	62	5	8	4	20	.229	.298	.357	.655
20	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
21	Brewers	16-8	Orioles	.667	24	16	8	844	134	236	48	5	34	126	88	10	177	22	8	953	396	87	6	5	3	14	.280	.353	.469	.822
22	Blue Jays	16-8	Pirates	.667	24	16	8	841	126	225	48	4	33	115	91	15	152	13	3	958	380	85	4	7	3	23	.268	.347	.452	.799
23	Mariners	16-8	Mets	.667	24	16	8	813	133	234	40	2	22	123	80	13	206	17	4	921	344	64	7	8	5	20	.288	.358	.423	.781
24	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
25	Mets	16-8	Guardians	.667	24	16	8	821	116	227	45	2	30	113	55	11	188	13	3	900	366	77	8	5	5	17	.276	.328	.446	.774