The Seattle Mariners have a record of 5-12 in the ALCS all-time.

	TEAM	DATE	REC	SEASON	SERIES	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	10/10/1995	1-0	1995	ALCS	SEA	vs	CLE	W 3-2	1.000	30	3	7	4	0	1	3	4	0	6	0	1	34	14	5	0	0	1	1	.233	.324	.467	.790
2	Mariners	10/11/1995	0-1	1995	ALCS	SEA	vs	CLE	L 2-5	.000	34	2	6	0	0	2	2	1	1	7	1	0	36	12	2	0	0	1	0	.176	.222	.353	.575
3	Mariners	10/13/1995	1-0	1995	ALCS	SEA	@	CLE	W 5-2	1.000	41	5	9	0	0	2	4	1	1	7	2	1	43	15	2	0	0	1	0	.220	.256	.366	.622
4	Mariners	10/14/1995	0-1	1995	ALCS	SEA	@	CLE	L 0-7	.000	33	0	6	1	0	0	0	3	0	11	2	0	36	7	1	0	0	0	0	.182	.250	.212	.462
5	Mariners	10/15/1995	0-1	1995	ALCS	SEA	@	CLE	L 2-3	.000	33	2	5	2	0	0	1	4	0	10	2	0	38	7	2	1	0	0	0	.152	.243	.212	.455
6	Mariners	10/17/1995	0-1	1995	ALCS	SEA	vs	CLE	L 0-4	.000	30	0	4	1	0	0	0	2	1	5	2	0	33	5	1	0	0	0	1	.133	.212	.167	.379
7	Mariners	10/10/2000	1-0	2000	ALCS	SEA	@	NYY	W 2-0	1.000	32	2	5	1	0	1	2	4	0	9	0	1	36	9	2	0	0	0	0	.156	.250	.281	.531
8	Mariners	10/11/2000	0-1	2000	ALCS	SEA	@	NYY	L 1-7	.000	32	1	7	3	0	0	1	3	0	7	1	0	35	10	3	0	0	1	1	.219	.286	.313	.598
9	Mariners	10/13/2000	0-1	2000	ALCS	SEA	vs	NYY	L 2-8	.000	34	2	10	1	0	0	2	1	0	4	1	0	36	11	1	1	0	0	1	.294	.314	.324	.638
10	Mariners	10/14/2000	0-1	2000	ALCS	SEA	vs	NYY	L 0-5	.000	28	0	1	1	0	0	0	2	0	15	0	0	30	2	1	0	0	0	0	.036	.100	.071	.171
11	Mariners	10/15/2000	1-0	2000	ALCS	SEA	vs	NYY	W 6-2	1.000	30	6	8	0	0	2	6	6	0	5	1	0	38	14	2	1	1	0	0	.267	.378	.467	.845
12	Mariners	10/17/2000	0-1	2000	ALCS	SEA	@	NYY	L 7-9	.000	35	7	10	6	0	2	7	5	0	8	0	1	40	22	8	0	0	1	0	.286	.375	.629	1.004
13	Mariners	10/17/2001	0-1	2001	ALCS	SEA	vs	NYY	L 2-4	.000	29	2	4	2	0	0	1	2	0	7	0	0	31	6	2	0	0	0	2	.138	.194	.207	.400
14	Mariners	10/18/2001	0-1	2001	ALCS	SEA	vs	NYY	L 2-3	.000	33	2	6	0	0	1	2	2	1	6	0	0	36	9	1	0	0	1	1	.182	.250	.273	.523
15	Mariners	10/20/2001	1-0	2001	ALCS	SEA	@	NYY	W 14-3	1.000	45	14	15	1	2	3	13	7	0	10	2	0	52	29	6	0	0	1	0	.333	.423	.644	1.068
16	Mariners	10/21/2001	0-1	2001	ALCS	SEA	@	NYY	L 1-3	.000	29	1	2	0	0	1	1	5	0	10	1	0	34	5	1	0	0	0	0	.069	.206	.172	.378
17	Mariners	10/22/2001	0-1	2001	ALCS	SEA	@	NYY	L 3-12	.000	35	3	9	1	0	0	3	2	0	2	0	0	38	10	1	1	0	0	0	.257	.297	.286	.583
	Total		5-12							.294	563	52	114	24	2	15	48	54	4	129	15	4	626	187	41	4	1	7	7	.202	.277	.332	.609