most home runs against one team all-time active player

Mike Trout has hit the most career home runs by an active player against a team, with 54 home runs against the Mariners.

Interpreted as:

most home runs by a player against one team all-time active player

	NAME	HR	OPP	G	AB	R	H	2B	3B	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Mike Trout M. Trout	54	Mariners	189	675	145	214	37	11	135	122	11	182	15	6	819	435	102	0	11	31	6	.317	.424	.644	1.068
2	Aaron Judge A. Judge	48	Orioles	113	395	108	128	20	0	102	95	6	132	5	3	497	292	68	0	1	6	10	.324	.461	.739	1.200
3	Bryce Harper B. Harper	45	Braves	196	696	132	181	37	0	108	135	7	194	24	3	846	353	82	2	6	16	15	.260	.383	.507	.890
4	Mike Trout M. Trout	44	Rangers	189	683	151	222	37	11	123	137	16	166	29	4	848	413	92	0	12	18	9	.325	.442	.605	1.047
5	Mike Trout M. Trout	42	Athletics	173	647	131	191	37	5	107	93	11	174	29	3	760	364	84	0	9	13	7	.295	.388	.563	.951
6	Freddie Freeman F. Freeman	42	Marlins	216	798	150	258	49	5	140	113	10	143	5	3	928	443	96	0	7	18	19	.323	.411	.555	.966
7	Andrew McCutchen A. McCutchen	40	Brewers	184	706	99	194	38	4	106	79	5	128	16	7	796	360	82	0	6	5	18	.275	.349	.510	.859
8	Aaron Judge A. Judge	39	Blue Jays	123	439	80	131	14	0	84	81	3	155	4	2	526	262	53	0	3	13	7	.298	.409	.597	1.006
9	Bryce Harper B. Harper	39	Mets	189	677	119	175	33	2	111	116	8	180	20	7	810	329	74	4	5	17	13	.258	.371	.486	.857
10	Giancarlo Stanton G. Stanton	38	Mets	123	446	72	115	15	0	89	59	4	142	3	1	515	244	53	0	6	9	12	.258	.346	.547	.893
11	Bryce Harper B. Harper	37	Marlins	190	675	124	196	50	3	125	119	5	163	12	8	811	363	90	1	11	12	17	.290	.395	.538	.933
12	Giancarlo Stanton G. Stanton	37	Nationals	121	438	68	124	29	1	88	57	6	140	5	2	503	266	67	0	2	9	11	.283	.372	.607	.979
13	Eugenio Suárez E. Suárez	36	Cubs	132	478	75	127	17	3	94	58	7	139	6	0	550	258	56	0	7	4	6	.266	.349	.540	.889
14	Paul Goldschmidt P. Goldschmidt	36	Dodgers	166	628	104	176	34	0	110	73	4	177	16	2	707	318	70	0	2	10	13	.280	.358	.506	.864
15	Jose Altuve J. Altuve	35	Rangers	196	776	140	233	51	2	95	72	12	102	28	7	865	393	88	1	4	4	18	.300	.367	.506	.873
16	Salvador Perez S. Perez	35	Twins	190	721	93	204	37	3	121	28	13	111	0	0	769	352	75	0	7	7	20	.283	.319	.488	.807
17	Andrew McCutchen A. McCutchen	35	Reds	201	727	115	181	34	4	101	124	11	154	18	9	867	328	73	0	5	0	8	.249	.364	.451	.816
18	José Ramírez J. Ramírez	34	White Sox	168	606	106	158	37	4	102	65	6	76	28	4	690	305	75	4	9	8	11	.261	.334	.503	.837
19	José Ramírez J. Ramírez	33	Tigers	159	580	113	177	40	11	124	70	4	74	22	4	662	338	84	1	7	12	3	.305	.380	.583	.962
20	Nolan Arenado N. Arenado	33	Giants	153	609	95	175	44	3	113	49	7	80	3	4	669	324	80	2	2	8	16	.287	.346	.532	.878
21	Freddie Freeman F. Freeman	33	Phillies	213	774	137	228	47	3	133	118	11	167	6	4	909	380	83	0	6	12	16	.295	.393	.491	.884
22	Carlos Santana C. Santana	33	Twins	194	716	111	184	32	3	107	107	4	107	4	1	833	321	68	0	6	10	16	.257	.354	.448	.802
23	Aaron Judge A. Judge	32	Red Sox	110	417	83	104	15	0	71	77	4	138	8	3	498	215	47	0	0	5	17	.249	.371	.516	.887
24	Nolan Arenado N. Arenado	32	Dodgers	157	580	85	159	24	1	100	45	3	109	3	2	634	281	57	0	6	4	18	.274	.326	.484	.811
25	Nolan Arenado N. Arenado	32	Diamondbacks	148	568	95	170	48	5	115	51	3	85	2	3	630	324	85	0	8	12	10	.299	.356	.570	.926