The Seattle Mariners have a record of 21-23 on August 17 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	8/17/1977	1-0	SEA	@	MIN	W 3-2	1.000	37	3	11	2	2	0	3	3	0	3	1	0	40	17	4	0	0	1	1	.297	.350	.459	.809
2	Mariners	8/17/1979	0-1	SEA	vs	DET	L 2-9	.000	35	2	11	2	0	0	2	3	0	6	1	0	39	13	2	1	0	0	1	.314	.368	.371	.740
3	Mariners	8/17/1980	1-0	SEA	vs	OAK	W 4-3	1.000	33	4	9	0	0	2	4	1	0	4	0	0	34	15	2	0	0	0	1	.273	.294	.455	.749
4	Mariners	8/17/1982	1-0	SEA	@	DET	W 5-4	1.000	34	5	8	1	0	1	5	3	0	5	1	2	37	12	2	0	0	0	0	.235	.297	.353	.650
5	Mariners	8/17/1982	0-1	SEA	@	DET	L 2-3	.000	32	2	8	0	0	2	2	1	0	2	2	0	33	14	2	0	0	0	3	.250	.273	.438	.710
6	Mariners	8/17/1983	0-1	SEA	vs	MIN	L 4-7	.000	33	4	7	1	0	1	4	4	0	1	0	1	37	11	2	0	0	0	0	.212	.297	.333	.631
7	Mariners	8/17/1984	0-1	SEA	@	DET	L 2-6	.000	37	2	8	1	0	0	2	4	0	6	0	0	41	9	1	0	0	0	0	.216	.293	.243	.536
8	Mariners	8/17/1985	0-1	SEA	@	MIN	L 0-2	.000	29	0	3	1	0	0	0	4	0	8	0	0	33	4	1	0	0	0	1	.103	.212	.138	.350
9	Mariners	8/17/1986	1-0	SEA	vs	MIN	W 11-1	1.000	34	11	11	3	0	3	10	5	1	4	0	0	40	23	6	0	0	1	1	.324	.425	.676	1.101
10	Mariners	8/17/1987	0-1	SEA	@	MIN	L 2-4	.000	32	2	7	1	0	1	2	2	0	5	0	0	34	11	2	0	0	0	1	.219	.265	.344	.608
11	Mariners	8/17/1988	0-1	SEA	@	BOS	L 2-7	.000	36	2	9	2	0	1	2	2	0	8	0	0	38	14	3	0	0	0	0	.250	.289	.389	.678
12	Mariners	8/17/1989	0-1	SEA	vs	KCR	L 2-4	.000	33	2	4	1	0	0	1	6	0	7	0	0	39	5	1	0	0	0	0	.121	.256	.152	.408
13	Mariners	8/17/1990	0-1	SEA	@	NYY	L 2-3	.000	31	2	4	0	0	1	2	6	0	4	0	0	37	7	1	0	0	0	1	.129	.270	.226	.496
14	Mariners	8/17/1991	0-1	SEA	vs	CAL	L 1-4	.000	33	1	9	1	0	0	1	4	0	7	1	0	37	10	1	0	0	0	2	.273	.351	.303	.654
15	Mariners	8/17/1993	1-0	SEA	vs	BAL	W 5-3	1.000	30	5	7	3	0	1	5	5	0	4	1	0	36	13	4	0	1	1	1	.233	.333	.433	.767
16	Mariners	8/17/1995	0-1	SEA	@	OAK	L 2-3	.000	31	2	7	0	1	1	2	8	0	5	0	0	40	12	2	1	0	0	2	.226	.385	.387	.772
17	Mariners	8/17/1996	1-0	SEA	@	NYY	W 10-3	1.000	37	10	12	1	0	3	10	3	1	4	0	0	43	22	4	0	2	0	0	.324	.372	.595	.967
18	Mariners	8/17/1997	1-0	SEA	@	CWS	W 5-3	1.000	35	5	10	3	0	3	5	3	0	7	0	0	40	22	6	1	1	0	1	.286	.333	.629	.962
19	Mariners	8/17/1997	0-1	SEA	@	CWS	L 2-4	.000	34	2	8	3	0	1	2	1	0	8	0	1	35	14	4	0	0	0	0	.235	.257	.412	.669
20	Mariners	8/17/1998	1-0	SEA	vs	DET	W 3-1	1.000	31	3	8	3	0	0	3	2	0	4	0	0	33	11	3	0	0	0	1	.258	.303	.355	.658
21	Mariners	8/17/1999	1-0	SEA	@	TOR	W 8-5	1.000	37	8	12	2	0	3	8	2	1	5	1	0	41	23	5	1	0	0	1	.324	.375	.622	.997
22	Mariners	8/17/2001	0-1	SEA	@	NYY	L 0-4	.000	29	0	6	0	0	0	0	5	0	7	0	2	34	6	0	0	0	0	1	.207	.324	.207	.530
23	Mariners	8/17/2002	0-1	SEA	vs	NYY	L 3-8	.000	31	3	6	3	0	0	3	3	0	6	1	0	36	9	3	0	2	0	1	.194	.250	.290	.540
24	Mariners	8/17/2003	1-0	SEA	vs	BOS	W 3-1	1.000	30	3	6	2	0	0	3	1	0	7	0	0	31	8	2	0	0	0	0	.200	.226	.267	.492
25	Mariners	8/17/2004	1-0	SEA	@	KCR	W 16-3	1.000	47	16	20	3	1	3	15	4	3	9	0	0	54	34	7	0	0	0	1	.426	.500	.723	1.223
	Total		21-23					.477	1,499	192	397	72	5	52	182	140	20	285	20	11	1,682	635	129	7	16	4	35	.265	.333	.424	.756