The Seattle Mariners have a record of 27-19 on April 15 all-time.

	TEAM	DATE	REC	TM		OPP	RESULT	W%	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	4/15/1977	0-1	SEA	@	CAL	L 0-7	.000	26	0	1	0	0	0	0	6	0	8	1	1	33	1	0	1	0	0	0	.038	.219	.038	.257
2	Mariners	4/15/1978	0-1	SEA	@	MIN	L 5-6	.000	41	5	9	1	0	0	5	4	0	7	1	1	45	10	1	0	0	0	0	.220	.289	.244	.533
3	Mariners	4/15/1979	0-1	SEA	vs	MIN	L 6-18	.000	37	6	12	1	0	3	6	1	0	5	0	1	38	22	4	0	0	0	2	.324	.342	.595	.937
4	Mariners	4/15/1980	0-1	SEA	@	OAK	L 3-12	.000	34	3	7	1	0	0	3	1	0	5	0	0	36	8	1	0	1	0	0	.206	.222	.235	.458
5	Mariners	4/15/1981	1-0	SEA	vs	MIN	W 6-5	1.000	33	6	11	5	0	0	6	3	1	3	2	0	37	16	5	0	0	0	1	.333	.405	.485	.890
6	Mariners	4/15/1982	0-1	SEA	@	CAL	L 2-3	.000	34	2	6	1	1	0	2	4	1	2	0	0	39	9	2	0	0	0	0	.176	.282	.265	.547
7	Mariners	4/15/1983	1-0	SEA	vs	OAK	W 5-1	1.000	29	5	7	1	0	1	4	6	0	4	2	0	36	11	2	0	1	0	1	.241	.361	.379	.740
8	Mariners	4/15/1984	1-0	SEA	@	MIN	W 5-4	1.000	37	5	9	1	0	0	3	3	0	5	1	0	40	10	1	0	0	0	0	.243	.300	.270	.570
9	Mariners	4/15/1985	0-1	SEA	@	OAK	L 4-7	.000	36	4	8	2	0	1	4	6	0	9	0	0	42	13	3	0	0	0	0	.222	.333	.361	.694
10	Mariners	4/15/1986	1-0	SEA	@	CAL	W 9-4	1.000	35	9	9	2	0	2	9	7	0	6	0	0	42	17	4	0	0	0	1	.257	.381	.486	.867
11	Mariners	4/15/1987	0-1	SEA	vs	CAL	L 0-4	.000	28	0	4	0	0	0	0	1	0	9	0	2	29	4	0	0	0	0	0	.143	.172	.143	.315
12	Mariners	4/15/1988	0-1	SEA	vs	CAL	L 3-5	.000	32	3	6	3	0	0	1	2	0	5	0	0	35	9	3	0	1	0	1	.188	.229	.281	.510
13	Mariners	4/15/1989	0-1	SEA	vs	CAL	L 2-9	.000	33	2	9	0	0	0	2	2	0	1	2	0	36	9	0	1	0	0	1	.273	.314	.273	.587
14	Mariners	4/15/1990	0-1	SEA	vs	OAK	L 0-3	.000	29	0	4	1	0	0	0	1	1	4	0	0	31	5	1	0	0	0	2	.138	.194	.172	.366
15	Mariners	4/15/1991	1-0	SEA	vs	MIN	W 8-4	1.000	35	8	12	2	0	2	8	4	0	3	0	0	39	20	4	0	0	1	1	.343	.410	.571	.982
16	Mariners	4/15/1992	1-0	SEA	@	CWS	W 6-0	1.000	32	6	6	0	0	3	6	5	0	5	0	0	37	15	3	0	0	0	1	.188	.297	.469	.766
17	Mariners	4/15/1993	0-1	SEA	@	TOR	L 1-3	.000	32	1	5	2	0	0	1	3	0	6	0	0	35	7	2	0	0	0	0	.156	.229	.219	.447
18	Mariners	4/15/1994	1-0	SEA	vs	MIL	W 9-1	1.000	35	9	9	1	1	2	8	3	1	6	0	0	39	18	4	0	0	0	0	.257	.333	.514	.848
19	Mariners	4/15/1996	1-0	SEA	vs	CAL	W 11-10	1.000	35	11	11	1	0	2	11	6	2	6	1	0	44	18	3	1	0	0	0	.314	.442	.514	.956
20	Mariners	4/15/1997	1-0	SEA	@	CLE	W 8-4	1.000	39	8	14	4	0	0	8	6	0	6	2	0	45	18	4	0	0	0	1	.359	.444	.462	.906
21	Mariners	4/15/1998	1-0	SEA	@	CLE	W 5-3	1.000	35	5	7	3	1	0	4	3	0	7	0	0	38	12	4	0	0	1	0	.200	.263	.343	.606
22	Mariners	4/15/1999	0-1	SEA	vs	TEX	L 3-4	.000	35	3	5	1	0	1	3	0	0	7	0	0	35	9	2	0	0	0	0	.143	.143	.257	.400
23	Mariners	4/15/2000	1-0	SEA	@	TOR	W 17-6	1.000	44	17	16	4	0	3	15	7	1	5	1	0	53	29	7	0	1	0	0	.364	.453	.659	1.112
24	Mariners	4/15/2001	1-0	SEA	@	ANA	W 7-5	1.000	36	7	11	2	0	1	7	4	0	5	3	0	41	16	3	1	0	2	0	.306	.375	.444	.819
25	Mariners	4/15/2002	1-0	SEA	@	TEX	W 13-11	1.000	42	13	15	3	0	2	13	9	1	10	3	0	56	24	5	2	2	2	0	.357	.463	.571	1.034
	Total		27-19					.587	1,548	260	394	82	7	47	248	172	19	269	37	11	1,763	631	136	9	15	6	24	.255	.334	.408	.741