The Seattle Mariners have a record of 43-50 in the month of October 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	10/1/1977	1-0	SEA	@	CWS	W 5-3	1.000	35	5	10	1	1	0	5	5	0	4	2	1	41	13	2	1	0	1	0	.286	.375	.371	.746
2	Mariners	10/1/1977	0-1	SEA	@	CWS	L 1-6	.000	34	1	8	2	0	0	1	2	1	5	0	0	38	10	2	0	1	0	1	.235	.289	.294	.584
3	Mariners	10/2/1977	1-0	SEA	@	CWS	W 3-2	1.000	35	3	10	1	0	0	3	1	0	9	1	1	38	11	1	2	0	0	0	.286	.306	.314	.620
4	Mariners	10/1/1978	0-1	SEA	vs	TEX	L 4-9	.000	37	4	13	1	0	1	3	3	0	5	1	0	40	17	2	0	0	0	3	.351	.400	.459	.859
5	Mariners	10/1/1980	0-1	SEA	@	KCR	L 1-4	.000	29	1	5	1	0	1	1	1	0	4	0	2	30	9	2	0	0	0	2	.172	.200	.310	.510
6	Mariners	10/2/1980	0-1	SEA	@	KCR	L 2-6	.000	33	2	6	1	0	0	0	4	0	1	1	0	37	7	1	0	0	0	1	.182	.270	.212	.482
7	Mariners	10/3/1980	0-1	SEA	@	TEX	L 2-6	.000	33	2	6	1	0	0	2	2	0	8	2	0	35	7	1	0	0	0	1	.182	.229	.212	.441
8	Mariners	10/4/1980	0-1	SEA	@	TEX	L 6-11	.000	36	6	9	0	0	0	5	3	0	8	1	0	39	9	0	0	0	0	0	.250	.308	.250	.558
9	Mariners	10/5/1980	0-1	SEA	@	TEX	L 2-3	.000	32	2	8	0	0	0	1	5	2	6	1	0	42	8	0	3	0	1	1	.250	.385	.250	.635
10	Mariners	10/2/1981	1-0	SEA	vs	TOR	W 8-3	1.000	35	8	12	3	1	0	7	4	0	5	1	1	39	17	4	0	0	1	0	.343	.410	.486	.896
11	Mariners	10/3/1981	0-1	SEA	vs	TOR	L 3-4	.000	27	3	2	0	0	2	3	5	1	4	0	1	33	8	2	0	0	0	1	.074	.242	.296	.539
12	Mariners	10/4/1981	1-0	SEA	vs	TOR	W 2-0	1.000	26	2	4	1	0	2	2	2	0	3	0	2	28	11	3	0	0	0	1	.154	.214	.423	.637
13	Mariners	10/1/1982	0-1	SEA	@	TOR	L 0-2	.000	30	0	4	0	0	0	0	2	0	7	0	1	32	4	0	0	0	0	0	.133	.188	.133	.321
14	Mariners	10/2/1982	0-1	SEA	@	TOR	L 0-3	.000	30	0	6	1	0	0	0	5	0	5	0	0	35	7	1	0	0	0	2	.200	.314	.233	.548
15	Mariners	10/3/1982	0-1	SEA	@	TOR	L 2-5	.000	32	2	5	0	1	1	2	1	0	7	2	1	33	10	2	0	0	0	0	.156	.182	.313	.494
16	Mariners	10/1/1983	0-1	SEA	vs	CWS	L 3-9	.000	36	3	10	6	0	0	3	2	0	7	0	0	38	16	6	0	0	0	1	.278	.316	.444	.760
17	Mariners	10/2/1983	0-1	SEA	vs	CWS	L 0-3	.000	30	0	5	3	0	0	0	3	0	7	0	0	34	8	3	1	0	0	1	.167	.242	.267	.509
18	Mariners	10/1/1985	0-1	SEA	@	CLE	L 3-9	.000	31	3	5	1	0	1	3	2	0	7	1	0	34	9	2	1	0	0	0	.161	.212	.290	.502
19	Mariners	10/2/1985	0-1	SEA	@	CLE	L 2-12	.000	32	2	5	3	0	0	2	1	0	7	0	0	33	8	3	0	0	0	1	.156	.182	.250	.432
20	Mariners	10/3/1985	1-0	SEA	@	CWS	W 5-4	1.000	29	5	4	2	0	1	4	2	0	5	0	0	32	9	3	0	1	0	1	.138	.188	.310	.498
21	Mariners	10/4/1985	0-1	SEA	@	CWS	L 5-7	.000	34	5	8	2	0	2	5	2	0	10	0	0	37	16	4	0	1	0	0	.235	.270	.471	.741
22	Mariners	10/5/1985	0-1	SEA	@	CWS	L 4-10	.000	32	4	8	3	1	0	4	3	0	8	2	0	36	13	4	1	0	0	2	.250	.314	.406	.721
23	Mariners	10/6/1985	0-1	SEA	@	CWS	L 2-3	.000	30	2	5	2	0	0	1	8	0	11	0	0	38	7	2	0	0	0	2	.167	.342	.233	.575
24	Mariners	10/1/1986	0-1	SEA	@	CWS	L 1-3	.000	32	1	7	0	0	0	1	3	0	9	0	1	36	7	0	1	0	0	0	.219	.286	.219	.504
25	Mariners	10/3/1986	0-1	SEA	@	CLE	L 5-6	.000	33	5	9	2	0	2	5	3	0	3	1	0	37	17	4	1	0	1	2	.273	.333	.515	.848
	Total		43-50					.462	3,113	388	781	153	15	74	360	273	34	635	64	30	3,466	1,186	242	24	22	13	85	.251	.316	.381	.697