The Boston Red Sox gave up the fewest runs by a team in April 2004, with 74 runs.

	TEAM	R	MONTH	G	W%	W	L	ERA	SO	SHO	SV	IP	H	ER	HR	BB	HBP	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Red Sox	74	April 2004	21	.714	15	6	2.95	156	0	7	198.1	164	65	14	82	12	5	834	6	7.08	3.72	1.90	0.64	18.7	9.8	1.24	.263	3.36	7.44
2	Phillies	80	April 2004	21	.476	10	11	3.33	140	1	6	189.0	188	70	21	48	6	5	783	4	6.67	2.29	2.92	1.00	17.9	6.1	1.25	.294	3.81	8.95
3	Devil Rays	86	April 2004	19	.316	6	13	4.49	105	0	2	166.1	158	83	21	69	13	8	723	9	5.68	3.73	1.52	1.14	14.5	9.5	1.36	.266	4.65	8.55
4	Astros	91	April 2004	22	.591	13	9	3.86	172	1	3	198.0	179	85	23	71	8	9	833	8	7.82	3.23	2.42	1.05	20.6	8.5	1.26	.279	4.14	8.14
5	Marlins	92	April 2004	23	.652	15	8	3.75	165	0	11	206.2	190	86	23	71	11	7	870	3	7.19	3.09	2.32	1.00	19.0	8.2	1.26	.278	4.01	8.27
6	Pirates	94	April 2004	21	.476	10	11	4.04	158	1	8	185.0	176	83	21	79	9	4	802	2	7.69	3.84	2.00	1.02	19.7	9.9	1.38	.290	4.57	8.56
7	Mets	96	April 2004	23	.391	9	14	3.99	109	0	5	201.0	209	89	16	67	6	5	872	4	4.88	3.00	1.63	0.72	12.5	7.7	1.37	.286	4.30	9.36
8	Cubs	96	April 2004	22	.591	13	9	4.24	193	0	6	199.2	179	94	25	97	14	7	878	9	8.70	4.37	1.99	1.13	22.0	11.0	1.38	.281	4.33	8.07
9	Yankees	97	April 2004	21	.524	11	10	4.28	132	0	9	187.0	189	89	24	64	9	3	807	5	6.35	3.08	2.06	1.16	16.4	7.9	1.35	.285	4.67	9.10
10	Expos	98	April 2004	24	.208	5	19	3.96	132	0	5	206.2	208	91	29	76	11	10	893	4	5.75	3.31	1.74	1.26	14.8	8.5	1.37	.278	4.27	9.06
11	Dodgers	99	April 2004	22	.636	14	8	4.41	141	1	7	198.0	196	97	27	84	7	7	857	10	6.41	3.82	1.68	1.23	16.5	9.8	1.41	.283	4.50	8.91
12	Braves	100	April 2004	21	.524	11	10	4.29	124	0	4	186.2	195	89	19	89	1	14	823	7	5.98	4.29	1.39	0.92	15.1	10.8	1.52	.298	4.82	9.40
13	White Sox	100	April 2004	21	.619	13	8	4.35	115	1	4	188.1	182	91	28	77	8	4	804	7	5.50	3.68	1.49	1.34	14.3	9.6	1.38	.267	4.78	8.70
14	Rangers	100	April 2004	22	.591	13	9	4.31	133	0	8	192.0	201	92	21	74	11	1	833	5	6.23	3.47	1.80	0.98	16.0	8.9	1.43	.303	4.69	9.42
15	Padres	100	April 2004	24	.625	15	9	3.73	129	0	7	215.0	215	89	19	67	9	7	907	2	5.40	2.80	1.93	0.80	14.2	7.4	1.31	.287	4.19	9.00
16	Athletics	106	April 2004	23	.478	11	12	4.05	141	0	7	206.2	217	93	23	63	12	6	892	1	6.14	2.74	2.24	1.00	15.8	7.1	1.35	.297	4.62	9.45
17	Orioles	108	April 2004	21	.571	12	9	4.45	145	0	4	196.1	183	97	17	104	9	6	871	10	6.65	4.77	1.39	0.78	16.6	11.9	1.46	.279	4.95	8.39
18	Reds	113	April 2004	22	.545	12	10	4.95	130	0	10	191.0	221	105	31	61	9	5	845	9	6.13	2.87	2.13	1.46	15.4	7.2	1.48	.309	5.32	10.41
19	Blue Jays	120	April 2004	22	.318	7	15	5.02	140	1	1	197.1	214	110	24	82	6	9	877	12	6.39	3.74	1.71	1.09	16.0	9.4	1.50	.304	5.47	9.76
20	Angels	121	April 2004	23	.565	13	10	4.99	166	0	7	202.0	237	112	23	72	5	3	897	5	7.40	3.21	2.31	1.02	18.5	8.0	1.53	.339	5.39	10.56
21	Twins	121	April 2004	22	.682	15	7	5.00	147	0	9	203.1	241	113	24	66	12	3	903	7	6.51	2.92	2.23	1.06	16.3	7.3	1.51	.332	5.36	10.67
22	Royals	122	April 2004	21	.333	7	14	5.25	104	0	3	183.1	207	107	19	75	5	6	806	12	5.11	3.68	1.39	0.93	12.9	9.3	1.54	.312	5.99	10.16
23	Cardinals	123	April 2004	23	.522	12	11	4.66	135	0	3	212.2	208	110	30	87	10	4	915	5	5.71	3.68	1.55	1.27	14.8	9.5	1.39	.273	5.21	8.80
24	Mariners	124	April 2004	23	.348	8	15	5.25	137	0	4	205.2	234	120	27	83	12	5	924	10	6.00	3.63	1.65	1.18	14.8	9.0	1.54	.311	5.43	10.24
25	Tigers	125	April 2004	23	.522	12	11	5.31	141	0	4	205.0	232	121	28	92	8	8	916	7	6.19	4.04	1.53	1.23	15.4	10.0	1.58	.315	5.49	10.19