The Houston Astros have a record of 31-36 in the month of April against the Pirates 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	Astros	4/17/1965	0-1	HOU	@	PIT	L 2-3	.000	33	2	6	0	1	0	2	3	0	6	0	0	38	8	1	2	0	0	2	.182	.250	.242	.492
2	Astros	4/18/1965	1-0	HOU	@	PIT	W 3-1	1.000	35	3	10	2	0	2	3	1	0	4	0	0	36	18	4	0	0	0	1	.286	.306	.514	.820
3	Astros	4/18/1965	0-1	HOU	@	PIT	L 4-5	.000	36	4	10	1	1	0	4	1	0	2	0	0	38	13	2	0	1	0	0	.278	.289	.361	.651
4	Astros	4/23/1965	1-0	HOU	vs	PIT	W 4-3	1.000	43	4	10	2	0	0	4	10	1	4	1	0	55	12	2	0	1	1	2	.233	.382	.279	.661
5	Astros	4/24/1965	1-0	HOU	vs	PIT	W 5-0	1.000	30	5	5	0	0	2	5	3	1	2	0	0	34	11	2	0	0	0	0	.167	.265	.367	.631
6	Astros	4/25/1965	1-0	HOU	vs	PIT	W 5-4	1.000	38	5	11	1	0	1	3	7	0	6	2	0	46	15	2	1	0	2	2	.289	.400	.395	.795
7	Astros	4/26/1965	1-0	HOU	vs	PIT	W 2-0	1.000	29	2	6	0	0	0	1	3	0	3	1	0	32	6	0	0	0	1	2	.207	.281	.207	.488
8	Astros	4/10/1968	1-0	HOU	vs	PIT	W 5-4	1.000	31	5	7	0	2	1	5	3	0	5	0	0	34	14	3	0	0	0	2	.226	.294	.452	.746
9	Astros	4/17/1968	0-1	HOU	@	PIT	L 4-13	.000	35	4	10	4	0	0	4	3	0	5	0	1	38	14	4	0	0	0	1	.286	.342	.400	.742
10	Astros	4/20/1970	0-1	HOU	@	PIT	L 1-3	.000	33	1	7	1	1	0	1	2	0	11	0	1	35	10	2	0	0	0	1	.212	.257	.303	.560
11	Astros	4/21/1970	0-1	HOU	@	PIT	L 8-9	.000	38	8	11	4	0	1	8	3	1	9	0	0	42	18	5	0	0	0	1	.289	.357	.474	.831
12	Astros	4/22/1970	0-1	HOU	@	PIT	L 1-6	.000	29	1	3	0	1	0	1	3	1	3	0	0	33	5	1	0	0	0	0	.103	.212	.172	.385
13	Astros	4/26/1974	0-1	HOU	@	PIT	L 3-4	.000	36	3	11	2	0	1	3	0	0	6	0	1	37	16	3	0	1	0	0	.306	.297	.444	.742
14	Astros	4/27/1974	1-0	HOU	@	PIT	W 10-7	1.000	40	10	14	2	1	0	10	7	0	4	0	0	49	18	3	1	1	1	0	.350	.438	.450	.888
15	Astros	4/28/1974	0-1	HOU	@	PIT	L 3-7	.000	37	3	12	2	0	1	3	1	0	8	1	1	38	17	3	0	0	0	1	.324	.342	.459	.802
16	Astros	4/29/1977	1-0	HOU	@	PIT	W 11-3	1.000	39	11	14	3	0	2	10	4	1	4	0	0	45	23	5	1	0	0	2	.359	.432	.590	1.022
17	Astros	4/30/1977	0-1	HOU	@	PIT	L 0-10	.000	32	0	6	1	0	0	0	2	0	2	0	0	34	7	1	0	0	0	1	.188	.235	.219	.454
18	Astros	4/20/1979	1-0	HOU	vs	PIT	W 5-4	1.000	33	5	9	2	0	0	5	5	0	8	4	0	42	11	2	2	2	2	2	.273	.350	.333	.683
19	Astros	4/21/1979	1-0	HOU	vs	PIT	W 5-4	1.000	41	5	14	2	2	0	5	6	0	4	2	0	49	20	4	2	0	2	0	.341	.426	.488	.913
20	Astros	4/22/1979	1-0	HOU	vs	PIT	W 3-2	1.000	30	3	6	4	1	0	2	2	0	3	1	0	33	12	5	0	1	1	1	.200	.242	.400	.642
21	Astros	4/27/1979	1-0	HOU	@	PIT	W 9-8	1.000	47	9	15	3	0	2	9	3	0	11	0	0	52	24	5	2	0	1	0	.319	.360	.511	.871
22	Astros	4/29/1979	0-1	HOU	@	PIT	L 5-10	.000	36	5	10	0	0	1	4	2	0	6	0	0	39	13	1	0	1	0	1	.278	.308	.361	.669
23	Astros	4/17/1981	0-1	HOU	vs	PIT	L 3-4	.000	30	3	6	2	0	0	3	2	0	6	2	1	33	8	2	0	1	0	1	.200	.242	.267	.509
24	Astros	4/18/1981	0-1	HOU	vs	PIT	L 3-6	.000	39	3	8	0	0	3	3	2	0	2	0	0	42	17	3	1	0	1	1	.205	.244	.436	.680
25	Astros	4/19/1981	0-1	HOU	vs	PIT	L 0-2	.000	29	0	5	1	1	0	0	2	0	7	1	1	32	8	2	1	0	1	0	.172	.226	.276	.502
	Total		31-36					.463	2,277	273	574	115	20	50	260	219	23	390	39	22	2,571	879	185	25	27	21	59	.252	.321	.386	.707