The Seattle Mariners have homered 49 times on May 25 all-time.

	TEAM	DATE	HR	TM		OPP	RESULT	AB	R	H	2B	3B	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Mariners	5/25/1977	0	SEA	@	CLE	L 1-2	40	1	5	2	0	1	1	0	5	0	1	41	7	2	0	0	0	0	.125	.146	.175	.321
2	Mariners	5/25/1978	2	SEA	vs	KCR	L 4-9	35	4	9	2	0	4	2	0	5	0	1	37	17	4	0	0	0	0	.257	.297	.486	.783
3	Mariners	5/25/1979	0	SEA	@	TEX	W 3-2	34	3	10	1	0	3	4	0	7	1	0	38	11	1	0	0	0	2	.294	.368	.324	.692
4	Mariners	5/25/1979	1	SEA	@	TEX	W 5-3	35	5	10	1	0	5	4	0	3	2	1	40	14	2	1	0	1	0	.286	.359	.400	.759
5	Mariners	5/25/1980	0	SEA	vs	CWS	W 8-3	33	8	13	3	2	8	6	2	4	2	0	43	20	5	2	0	0	2	.394	.512	.606	1.118
6	Mariners	5/25/1981	3	SEA	vs	KCR	W 7-1	35	7	12	2	0	7	7	1	5	1	0	44	23	5	0	1	1	0	.343	.455	.657	1.112
7	Mariners	5/25/1981	2	SEA	vs	KCR	W 5-2	27	5	5	0	0	5	5	0	6	1	0	33	11	2	0	1	0	1	.185	.303	.407	.710
8	Mariners	5/25/1982	1	SEA	vs	DET	W 7-6	40	7	12	2	0	6	5	1	5	0	1	46	17	3	0	0	0	0	.300	.391	.425	.816
9	Mariners	5/25/1983	1	SEA	vs	CLE	W 2-1	26	2	4	0	0	2	5	0	6	1	0	31	7	1	0	0	0	1	.154	.290	.269	.560
10	Mariners	5/25/1984	2	SEA	vs	DET	W 7-3	35	7	12	2	0	7	1	1	4	0	0	38	20	4	1	0	0	1	.343	.378	.571	.950
11	Mariners	5/25/1985	2	SEA	vs	DET	L 2-3	31	2	4	1	0	2	2	0	11	1	0	34	11	3	1	0	0	0	.129	.182	.355	.537
12	Mariners	5/25/1986	0	SEA	vs	BAL	L 3-6	35	3	10	3	0	3	1	0	7	0	0	37	13	3	1	0	0	0	.286	.306	.371	.677
13	Mariners	5/25/1987	1	SEA	vs	TOR	L 5-6	34	5	10	3	1	5	1	0	6	0	1	37	18	5	0	2	0	1	.294	.297	.529	.827
14	Mariners	5/25/1988	0	SEA	vs	BOS	L 0-4	30	0	4	0	0	0	2	0	5	2	0	32	4	0	0	0	0	1	.133	.188	.133	.321
15	Mariners	5/25/1989	0	SEA	@	BOS	L 0-10	33	0	8	0	0	0	2	0	6	0	0	35	8	0	0	0	0	1	.242	.286	.242	.528
16	Mariners	5/25/1990	0	SEA	vs	TOR	L 1-3	38	1	8	1	1	1	5	0	9	2	1	43	11	2	0	0	0	2	.211	.302	.289	.592
17	Mariners	5/25/1991	2	SEA	vs	TEX	L 6-8	42	6	12	1	0	5	8	0	2	0	0	52	19	3	2	0	0	0	.286	.400	.452	.852
18	Mariners	5/25/1992	1	SEA	vs	BAL	W 7-3	34	7	14	1	0	7	2	1	3	1	0	40	18	2	1	2	0	2	.412	.436	.529	.965
19	Mariners	5/25/1993	1	SEA	vs	CAL	L 3-6	34	3	7	1	0	2	2	0	4	0	1	37	11	2	1	0	0	0	.206	.250	.324	.574
20	Mariners	5/25/1994	0	SEA	@	OAK	W 1-0	32	1	8	0	1	1	3	0	7	0	0	37	10	1	2	0	1	1	.250	.314	.313	.627
21	Mariners	5/25/1995	0	SEA	vs	BOS	W 4-3	30	4	7	3	0	3	0	1	1	1	1	31	10	3	0	0	0	1	.233	.258	.333	.591
22	Mariners	5/25/1996	0	SEA	vs	NYY	L 4-5	36	4	9	3	0	4	2	0	10	3	1	39	12	3	0	1	1	0	.250	.282	.333	.615
23	Mariners	5/25/1997	2	SEA	@	KCR	L 3-4	39	3	8	1	0	3	7	0	6	0	0	46	15	3	0	0	0	1	.205	.326	.385	.711
24	Mariners	5/25/1998	1	SEA	vs	BAL	W 12-4	37	12	15	6	0	12	5	1	9	2	0	45	24	7	0	2	1	1	.405	.467	.649	1.115
25	Mariners	5/25/1999	4	SEA	@	MIN	W 15-5	43	15	17	2	0	15	8	0	4	1	0	52	31	6	0	1	1	0	.395	.481	.721	1.202
	Total		49					1,712	206	430	78	6	198	151	14	311	30	15	1,903	667	133	13	13	9	35	.251	.315	.390	.704