The New York Mets have a 27-31 record on June 30 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	Mets	6/30/1962	0-1	NYM	@	LAD	L 0-5	.000	25	0	0	0	0	0	0	5	0	13	0	0	30	0	0	0	0	0	2	.000	.167	.000	.167
2	Mets	6/30/1963	0-1	NYM	@	PIT	L 0-3	.000	29	0	3	0	0	0	0	1	1	7	0	0	31	3	0	0	0	0	1	.103	.161	.103	.265
3	Mets	6/30/1964	0-1	NYM	@	SFG	L 0-5	.000	30	0	3	1	0	0	0	1	1	4	0	0	32	4	1	0	0	0	0	.100	.156	.133	.290
4	Mets	6/30/1965	1-0	NYM	vs	CIN	W 6-3	1.000	34	6	12	3	0	1	6	4	2	9	1	1	42	18	4	1	1	0	0	.353	.439	.529	.968
5	Mets	6/30/1966	0-1	NYM	vs	PHI	L 0-1	.000	32	0	6	0	0	0	0	1	0	13	1	0	33	6	0	0	0	0	0	.188	.212	.188	.400
6	Mets	6/30/1967	0-1	NYM	vs	STL	L 1-4	.000	34	1	9	1	0	1	1	2	0	4	0	0	36	13	2	0	0	0	2	.265	.306	.382	.688
7	Mets	6/30/1968	1-0	NYM	@	HOU	W 1-0	1.000	31	1	5	0	0	0	1	1	0	11	0	1	32	5	0	0	0	0	0	.161	.188	.161	.349
8	Mets	6/30/1969	1-0	NYM	@	STL	W 10-2	1.000	35	10	9	1	0	2	10	5	0	2	0	0	41	16	3	0	1	1	0	.257	.341	.457	.799
9	Mets	6/30/1970	1-0	NYM	vs	PIT	W 7-6	1.000	31	7	8	0	0	1	6	4	0	6	0	0	38	11	1	2	1	0	0	.258	.333	.355	.688
10	Mets	6/30/1971	1-0	NYM	vs	PIT	W 4-0	1.000	33	4	11	1	1	1	4	1	0	5	0	1	35	17	3	1	0	0	0	.333	.353	.515	.868
11	Mets	6/30/1972	1-0	NYM	@	MON	W 7-3	1.000	32	7	9	1	1	1	6	5	0	8	1	3	38	15	3	0	1	0	1	.281	.368	.469	.837
12	Mets	6/30/1973	1-0	NYM	@	CHC	W 2-1	1.000	30	2	5	2	0	0	2	1	0	4	0	0	32	7	2	1	0	0	2	.167	.194	.233	.427
13	Mets	6/30/1974	0-1	NYM	vs	STL	L 2-5	.000	35	2	8	3	0	0	2	0	0	6	0	0	35	11	3	0	0	0	1	.229	.229	.314	.543
14	Mets	6/30/1974	0-1	NYM	vs	STL	L 3-5	.000	40	3	10	1	0	1	3	3	0	4	1	0	43	14	2	0	0	1	0	.250	.302	.350	.652
15	Mets	6/30/1975	1-0	NYM	vs	CHC	W 5-1	1.000	31	5	10	2	0	0	5	4	1	5	0	0	37	12	2	1	0	1	0	.323	.417	.387	.804
16	Mets	6/30/1977	1-0	NYM	@	MON	W 4-3	1.000	32	4	10	2	0	1	4	3	0	3	1	0	37	15	3	2	0	0	3	.313	.371	.469	.840
17	Mets	6/30/1978	1-0	NYM	@	PIT	W 6-5	1.000	39	6	14	3	1	0	6	2	0	4	0	1	42	19	4	0	1	1	0	.359	.381	.487	.868
18	Mets	6/30/1979	1-0	NYM	@	CHC	W 9-8	1.000	46	9	17	0	1	3	9	5	1	8	2	1	53	28	4	0	1	0	1	.370	.434	.609	1.043
19	Mets	6/30/1982	0-1	NYM	@	MON	L 1-4	.000	32	1	5	1	1	0	1	5	0	11	0	0	37	8	2	0	0	0	1	.156	.270	.250	.520
20	Mets	6/30/1983	0-1	NYM	@	STL	L 1-6	.000	36	1	10	1	0	0	1	1	0	8	0	0	37	11	1	0	0	0	0	.278	.297	.306	.603
21	Mets	6/30/1985	0-1	NYM	@	STL	L 1-2	.000	42	1	11	0	0	0	1	0	1	6	0	1	44	11	0	0	1	0	0	.262	.273	.262	.535
22	Mets	6/30/1986	1-0	NYM	@	STL	W 7-0	1.000	40	7	16	2	0	1	7	3	0	5	0	0	43	21	3	0	0	0	2	.400	.442	.525	.967
23	Mets	6/30/1987	1-0	NYM	vs	STL	W 3-2	1.000	30	3	7	1	0	0	3	3	0	2	0	0	34	8	1	1	0	1	1	.233	.303	.267	.570
24	Mets	6/30/1988	1-0	NYM	vs	HOU	W 12-6	1.000	37	12	16	4	1	2	12	3	0	8	2	0	43	28	7	1	2	1	0	.432	.452	.757	1.209
25	Mets	6/30/1989	1-0	NYM	@	CIN	W 11-1	1.000	39	11	12	2	0	3	11	3	0	6	0	0	42	23	5	0	0	0	0	.308	.357	.590	.947
	Total		27-31					.466	1,939	221	470	84	14	45	213	159	14	403	27	12	2,151	717	143	19	20	12	35	.242	.302	.370	.671