The Seattle Mariners have a record of 80-59 in the month of May on Mondays 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	5/9/1977	0-1	SEA	@	TOR	L 4-10	.000	34	4	8	0	0	1	4	4	0	4	0	0	39	11	1	1	0	0	1	.235	.316	.324	.639
2	Mariners	5/16/1977	1-0	SEA	vs	BAL	W 8-3	1.000	29	8	8	3	0	0	8	6	1	0	1	0	38	11	3	0	2	0	1	.276	.395	.379	.774
3	Mariners	5/30/1977	1-0	SEA	@	TEX	W 7-4	1.000	33	7	9	3	0	2	7	5	0	3	1	0	39	18	5	1	0	0	1	.273	.368	.545	.914
4	Mariners	5/30/1977	1-0	SEA	@	TEX	W 9-3	1.000	42	9	17	3	0	2	9	3	0	7	0	1	46	26	5	0	1	0	0	.405	.435	.619	1.054
5	Mariners	5/15/1978	0-1	SEA	@	DET	L 2-4	.000	26	2	5	1	0	0	2	4	0	3	1	1	32	6	1	0	2	1	3	.192	.281	.231	.512
6	Mariners	5/22/1978	1-0	SEA	vs	KCR	W 10-1	1.000	34	10	10	2	1	1	6	1	1	4	0	0	37	17	4	1	0	0	0	.294	.333	.500	.833
7	Mariners	5/29/1978	0-1	SEA	@	KCR	L 2-8	.000	36	2	11	1	1	0	2	3	0	2	1	0	39	14	2	0	0	0	1	.306	.359	.389	.748
8	Mariners	5/7/1979	1-0	SEA	@	NYY	W 12-4	1.000	39	12	14	6	0	2	11	7	1	5	1	1	49	26	8	1	1	1	1	.359	.458	.667	1.125
9	Mariners	5/14/1979	0-1	SEA	vs	KCR	L 0-1	.000	29	0	5	1	0	0	0	4	0	1	1	1	34	6	1	1	0	0	1	.172	.273	.207	.480
10	Mariners	5/21/1979	1-0	SEA	@	KCR	W 12-7	1.000	38	12	15	6	1	1	12	4	0	5	0	0	44	26	8	1	1	1	2	.395	.442	.684	1.126
11	Mariners	5/19/1980	1-0	SEA	vs	MIL	W 4-3	1.000	42	4	12	3	1	0	4	4	0	7	1	0	48	17	4	1	1	2	1	.286	.340	.405	.745
12	Mariners	5/26/1980	0-1	SEA	@	MIL	L 1-11	.000	32	1	10	1	0	0	1	2	0	6	0	1	34	11	1	0	0	0	3	.313	.353	.344	.697
13	Mariners	5/4/1981	0-1	SEA	vs	MIL	L 5-9	.000	34	5	8	2	0	1	5	3	0	5	1	0	37	13	3	0	0	0	0	.235	.297	.382	.680
14	Mariners	5/18/1981	0-1	SEA	@	BOS	L 5-8	.000	35	5	10	1	0	0	5	7	1	5	0	0	45	11	1	1	1	0	0	.286	.409	.314	.723
15	Mariners	5/25/1981	1-0	SEA	vs	KCR	W 7-1	1.000	35	7	12	2	0	3	7	7	1	5	1	0	44	23	5	0	1	1	0	.343	.455	.657	1.112
16	Mariners	5/25/1981	1-0	SEA	vs	KCR	W 5-2	1.000	27	5	5	0	0	2	5	5	0	6	1	0	33	11	2	0	1	0	1	.185	.303	.407	.710
17	Mariners	5/3/1982	0-1	SEA	@	BAL	L 0-6	.000	26	0	3	0	0	0	0	1	0	3	0	0	27	3	0	0	0	0	1	.115	.148	.115	.264
18	Mariners	5/10/1982	1-0	SEA	vs	CLE	W 6-4	1.000	33	6	11	1	0	2	6	2	1	7	0	2	36	18	3	0	0	0	0	.333	.389	.545	.934
19	Mariners	5/31/1982	1-0	SEA	vs	MIL	W 5-4	1.000	41	5	12	3	0	3	5	3	1	5	0	0	46	24	6	1	0	0	1	.293	.356	.585	.941
20	Mariners	5/9/1983	1-0	SEA	@	BAL	W 6-4	1.000	33	6	7	2	0	1	6	5	0	4	5	1	39	12	3	0	1	0	0	.212	.308	.364	.671
21	Mariners	5/23/1983	1-0	SEA	vs	CLE	W 3-2	1.000	31	3	8	2	0	0	2	2	0	9	1	1	33	10	2	0	0	0	0	.258	.303	.323	.626
22	Mariners	5/30/1983	0-1	SEA	@	MIL	L 3-6	.000	33	3	7	3	0	1	3	2	0	3	0	0	36	13	4	1	0	0	1	.212	.257	.394	.651
23	Mariners	5/7/1984	0-1	SEA	@	OAK	L 5-6	.000	34	5	10	0	1	1	5	3	0	8	2	0	40	15	2	0	3	0	0	.294	.325	.441	.766
24	Mariners	5/14/1984	0-1	SEA	@	DET	L 5-7	.000	34	5	9	1	0	1	4	4	0	4	0	1	39	13	2	1	0	0	2	.265	.342	.382	.724
25	Mariners	5/28/1984	0-1	SEA	vs	BAL	L 4-7	.000	31	4	6	2	0	2	4	1	0	7	0	0	33	14	4	0	1	0	1	.194	.212	.452	.664
	Total		80-59					.576	4,741	752	1,288	252	26	172	711	466	37	890	92	39	5,341	2,108	450	43	54	32	94	.272	.338	.445	.783