best team record vs a single opponent all-time

The Seattle Mariners have the best record by a team against a team, with a record of 21-6 against 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	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
8	Diamondbacks	19-8	White Sox	.704	27	19	8	903	151	230	45	8	36	145	79	8	188	18	4	1,009	399	89	4	15	3	19	.255	.315	.442	.757
9	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
10	Marlins	30-14	Orioles	.682	44	30	14	1,532	225	427	74	10	42	216	122	18	304	39	7	1,701	647	126	15	14	7	23	.279	.336	.422	.759
11	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
12	Red Sox	34-16	Marlins	.680	50	34	16	1,722	297	513	110	11	56	282	166	17	348	28	14	1,938	813	177	11	22	12	45	.298	.361	.472	.833
13	White Sox	25-12	Orioles	.676	39	25	12	1,339	245	394	51	13	5	193	136	16	12	97		1,546	486	69	55				.294	.366	.363	.729
14	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
15	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
16	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
17	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
18	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
19	Angels	32-16	Rockies	.667	48	32	16	1,686	294	495	92	8	77	280	172	20	317	35	11	1,903	834	177	9	16	11	43	.294	.363	.495	.857
20	Tigers	33-17	Cardinals	.660	50	33	17	1,710	252	469	100	8	66	244	151	11	348	18	17	1,895	783	174	10	13	9	43	.274	.335	.458	.793
21	Rebels	29-15	Terrapins	.659	46	29	15	1,516	191	410	65	27	7	159	115	16	173	56		1,713	550	99	66				.270	.328	.363	.691
22	Peppers	29-15	Tip-Tops	.659	44	29	15	1,480	233	421	66	22	5	182	154	9		64		1,704	546	93	61				.284	.355	.369	.724
23	Americans	25-13	Orioles	.658	38	25	13	1,394	239	426	53	39	9	205	76	8	-32	48		1,506	584	101	28				.306	.345	.419	.764
24	Twins	19-10	Padres	.655	29	19	10	987	130	250	45	1	37	127	79	17	211	21	7	1,102	408	83	14	5	8	19	.253	.318	.413	.731
25	Nationals	22-12	Mariners	.647	34	22	12	1,121	141	284	50	3	41	140	98	8	229	23	11	1,250	463	94	13	10	7	32	.253	.315	.413	.728