The Seattle Mariners have a record of 21-21 on August 25 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	8/25/1978	0-1	SEA	@	BAL	L 0-5	.000	29	0	2	0	0	0	0	6	0	4	2	0	35	2	0	0	0	0	0	.069	.229	.069	.298
2	Mariners	8/25/1979	1-0	SEA	@	DET	W 8-4	1.000	35	8	9	1	0	4	8	2	0	8	0	2	37	22	5	0	0	1	0	.257	.297	.629	.926
3	Mariners	8/25/1980	1-0	SEA	vs	BAL	W 10-5	1.000	34	10	11	2	1	2	10	3	0	4	2	1	37	21	5	0	0	0	0	.324	.378	.618	.996
4	Mariners	8/25/1981	0-1	SEA	vs	BAL	L 5-6	.000	44	5	11	3	0	1	5	8	0	8	1	1	52	17	4	0	0	0	1	.250	.365	.386	.752
5	Mariners	8/25/1983	0-1	SEA	@	NYY	L 4-7	.000	34	4	7	2	0	0	4	5	0	3	0	0	40	9	2	0	1	0	1	.206	.300	.265	.565
6	Mariners	8/25/1984	0-1	SEA	vs	NYY	L 1-14	.000	32	1	5	2	1	0	1	0	0	8	0	0	32	9	3	0	0	0	1	.156	.156	.281	.438
7	Mariners	8/25/1985	0-1	SEA	vs	NYY	L 5-8	.000	37	5	12	1	0	2	5	1	0	9	0	0	38	19	3	0	0	0	2	.324	.342	.514	.856
8	Mariners	8/25/1987	0-1	SEA	vs	TOR	L 3-6	.000	32	3	5	2	0	1	3	2	0	5	0	0	34	10	3	0	0	0	0	.156	.206	.313	.518
9	Mariners	8/25/1989	0-1	SEA	@	MIN	L 1-2	.000	31	1	5	2	0	0	1	2	0	9	0	0	33	7	2	0	0	0	0	.161	.212	.226	.438
10	Mariners	8/25/1990	1-0	SEA	@	KCR	W 6-3	1.000	39	6	12	2	0	1	5	3	0	5	3	0	42	17	3	0	0	0	0	.308	.357	.436	.793
11	Mariners	8/25/1991	0-1	SEA	@	DET	L 3-4	.000	31	3	9	1	0	1	3	4	0	5	0	0	38	13	2	2	1	2	2	.290	.361	.419	.780
12	Mariners	8/25/1992	1-0	SEA	vs	CLE	W 6-0	1.000	32	6	11	2	1	1	6	4	0	4	1	0	36	18	4	0	0	0	3	.344	.417	.563	.979
13	Mariners	8/25/1993	0-1	SEA	@	DET	L 4-7	.000	33	4	9	1	1	3	4	1	0	3	1	0	34	21	5	0	0	0	0	.273	.294	.636	.930
14	Mariners	8/25/1995	1-0	SEA	vs	NYY	W 7-4	1.000	30	7	7	1	0	2	6	7	0	6	0	0	37	14	3	0	0	0	1	.233	.378	.467	.845
15	Mariners	8/25/1996	0-1	SEA	@	BOS	L 5-8	.000	35	5	9	1	0	3	5	1	0	6	0	0	36	19	4	0	0	0	0	.257	.278	.543	.821
16	Mariners	8/25/1997	0-1	SEA	vs	BOS	L 8-9	.000	35	8	11	2	0	4	7	3	0	5	3	0	39	25	6	1	0	0	1	.314	.368	.714	1.083
17	Mariners	8/25/1998	0-1	SEA	@	CLE	L 4-10	.000	37	4	12	3	0	1	4	2	0	11	1	0	40	18	4	1	0	0	1	.324	.359	.486	.845
18	Mariners	8/25/1999	1-0	SEA	vs	DET	W 3-2	1.000	30	3	7	1	0	0	3	0	0	6	1	0	31	8	1	0	1	0	0	.233	.226	.267	.492
19	Mariners	8/25/2000	0-1	SEA	vs	CWS	L 1-4	.000	28	1	4	0	0	0	1	6	0	8	0	0	34	4	0	0	0	0	3	.143	.294	.143	.437
20	Mariners	8/25/2001	1-0	SEA	vs	CLE	W 3-2	1.000	36	3	7	2	0	0	2	6	0	11	2	0	43	9	2	1	0	1	1	.194	.310	.250	.560
21	Mariners	8/25/2002	1-0	SEA	@	CLE	W 12-4	1.000	40	12	16	3	0	2	12	3	1	6	0	0	45	25	5	1	0	0	2	.400	.455	.625	1.080
22	Mariners	8/25/2003	0-1	SEA	@	BOS	L 1-8	.000	33	1	8	0	0	0	1	2	1	6	0	0	37	8	0	0	1	0	0	.242	.297	.242	.540
23	Mariners	8/25/2004	0-1	SEA	vs	TBD	L 5-6	.000	33	5	7	0	0	1	5	2	0	9	0	0	37	10	1	1	1	1	0	.212	.250	.303	.553
24	Mariners	8/25/2005	1-0	SEA	@	TEX	W 8-2	1.000	35	8	6	1	0	2	8	3	0	6	0	0	39	13	3	1	0	1	0	.171	.237	.371	.608
25	Mariners	8/25/2006	1-0	SEA	vs	BOS	W 6-0	1.000	34	6	11	3	1	0	5	1	0	8	0	0	35	16	4	0	0	0	0	.324	.343	.471	.813
	Total		21-21					.500	1,428	185	354	64	6	51	176	130	9	300	31	5	1,589	583	121	13	9	11	29	.248	.313	.408	.721