The Seattle Mariners have a 17-21 record on June 21 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	6/21/1977	0-1	SEA	@	KCR	L 3-13	.000	30	3	4	3	0	0	3	1	0	4	0	0	31	7	3	0	0	0	1	.133	.161	.233	.395
2	Mariners	6/21/1979	0-1	SEA	@	CWS	L 5-9	.000	38	5	12	2	1	1	5	1	0	6	1	0	39	19	4	0	0	0	1	.316	.333	.500	.833
3	Mariners	6/21/1980	0-1	SEA	@	BAL	L 0-9	.000	30	0	5	1	0	0	0	2	0	7	0	1	32	6	1	0	0	0	1	.167	.219	.200	.419
4	Mariners	6/21/1982	1-0	SEA	vs	TOR	W 5-4	1.000	32	5	7	0	0	3	5	1	0	8	0	0	33	16	3	0	0	0	0	.219	.242	.500	.742
5	Mariners	6/21/1983	0-1	SEA	@	CWS	L 2-4	.000	33	2	7	2	0	0	2	1	0	4	1	0	35	9	2	1	0	0	0	.212	.235	.273	.508
6	Mariners	6/21/1986	0-1	SEA	@	CWS	L 6-7	.000	32	6	7	1	0	1	5	2	1	5	0	1	36	11	2	1	0	0	0	.219	.286	.344	.629
7	Mariners	6/21/1987	1-0	SEA	@	CLE	W 5-0	1.000	35	5	10	2	0	0	5	3	0	4	2	1	38	12	2	0	0	0	0	.286	.342	.343	.685
8	Mariners	6/21/1988	0-1	SEA	@	TEX	L 0-6	.000	31	0	6	2	0	0	0	1	0	4	0	1	32	8	2	0	0	0	2	.194	.219	.258	.477
9	Mariners	6/21/1989	0-1	SEA	vs	BAL	L 6-8	.000	40	6	13	3	0	0	6	3	0	5	1	0	43	16	3	0	0	0	0	.325	.372	.400	.772
10	Mariners	6/21/1991	1-0	SEA	@	MIL	W 5-1	1.000	37	5	9	3	0	0	5	4	0	5	1	0	41	12	3	0	0	0	0	.243	.317	.324	.641
11	Mariners	6/21/1992	0-1	SEA	@	MIN	L 0-5	.000	30	0	4	1	0	0	0	2	0	8	0	1	32	5	1	0	0	0	0	.133	.188	.167	.354
12	Mariners	6/21/1993	0-1	SEA	vs	OAK	L 3-5	.000	35	3	8	2	0	1	3	1	0	5	0	1	36	13	3	0	0	0	0	.229	.250	.371	.621
13	Mariners	6/21/1994	0-1	SEA	@	CAL	L 2-7	.000	33	2	7	1	0	2	2	4	0	3	0	1	37	14	3	0	0	0	1	.212	.297	.424	.722
14	Mariners	6/21/1995	0-1	SEA	@	CWS	L 4-5	.000	37	4	8	0	1	1	4	0	0	8	2	0	38	13	2	0	1	0	0	.216	.211	.351	.562
15	Mariners	6/21/1996	1-0	SEA	@	CWS	W 12-2	1.000	35	12	11	2	0	3	12	7	0	1	0	1	44	22	5	1	1	1	0	.314	.419	.629	1.047
16	Mariners	6/21/1997	1-0	SEA	@	TEX	W 15-8	1.000	39	15	13	6	0	1	15	7	0	7	0	0	47	22	7	0	1	2	2	.333	.426	.564	.990
17	Mariners	6/21/1998	1-0	SEA	vs	OAK	W 10-5	1.000	33	10	11	1	0	2	9	4	0	3	2	1	39	18	3	1	1	0	1	.333	.395	.545	.940
18	Mariners	6/21/1999	0-1	SEA	@	CLE	L 3-4	.000	44	3	10	1	0	0	3	4	0	11	3	1	48	11	1	0	0	1	0	.227	.292	.250	.542
19	Mariners	6/21/2000	1-0	SEA	vs	TBD	W 8-5	1.000	31	8	7	3	0	0	7	8	2	6	0	0	41	10	3	0	0	0	1	.226	.415	.323	.737
20	Mariners	6/21/2001	1-0	SEA	@	OAK	W 12-10	1.000	43	12	17	4	0	4	12	3	1	4	3	0	48	33	8	1	0	2	1	.395	.447	.767	1.214
21	Mariners	6/21/2002	1-0	SEA	@	HOU	W 8-0	1.000	38	8	11	2	0	2	8	4	2	10	1	0	44	19	4	0	0	0	0	.289	.386	.500	.886
22	Mariners	6/21/2003	1-0	SEA	@	SDP	W 4-2	1.000	35	4	10	4	0	0	4	6	0	8	1	0	42	14	4	0	1	2	0	.286	.381	.400	.781
23	Mariners	6/21/2005	0-1	SEA	vs	OAK	L 2-4	.000	31	2	7	1	0	0	2	2	0	4	0	0	34	8	1	0	1	0	2	.226	.265	.258	.523
24	Mariners	6/21/2006	1-0	SEA	@	LAD	W 8-5	1.000	37	8	14	2	0	3	7	6	0	4	2	1	46	25	5	2	1	1	0	.378	.455	.676	1.130
25	Mariners	6/21/2007	1-0	SEA	vs	PIT	W 3-0	1.000	32	3	8	3	0	0	3	2	0	6	0	0	34	11	3	0	0	0	0	.250	.294	.344	.638
	Total		17-21					.447	1,306	184	338	70	4	36	179	126	9	227	30	18	1,462	524	110	10	11	14	23	.259	.326	.401	.727