The St. Louis Cardinals gave up the fewest runs by a team in April 2015, with 55 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	Cardinals	55	April 2015	21	.714	15	6	2.43	163	0	11	188.2	157	51	11	53	5	3	771	8	7.78	2.53	3.08	0.52	21.1	6.9	1.11	.271	2.62	7.49
2	Pirates	71	April 2015	22	.545	12	10	2.95	195	0	6	195.0	174	64	10	63	7	6	803	3	9.00	2.91	3.10	0.46	24.3	7.8	1.22	.311	3.28	8.03
3	Royals	74	April 2015	22	.682	15	7	3.10	149	0	8	197.2	160	68	17	60	6	2	794	10	6.78	2.73	2.48	0.77	18.8	7.6	1.11	.254	3.37	7.28
4	Astros	75	April 2015	22	.682	15	7	3.04	162	0	7	204.0	164	69	15	51	7	1	818	10	7.15	2.25	3.18	0.66	19.8	6.2	1.05	.256	3.31	7.24
5	Dodgers	77	April 2015	21	.619	13	8	3.41	202	0	5	187.1	168	71	22	51	5	2	771	9	9.70	2.45	3.96	1.06	26.2	6.6	1.17	.297	3.70	8.07
6	Cubs	77	April 2015	20	.600	12	8	3.71	181	0	4	182.0	168	75	14	41	3	6	750	4	8.95	2.03	4.41	0.69	24.1	5.5	1.15	.301	3.81	8.31
7	Mets	81	April 2015	23	.652	15	8	3.33	176	0	11	200.0	183	74	21	43	3	5	821	4	7.92	1.94	4.09	0.95	21.4	5.2	1.13	.280	3.65	8.24
8	Yankees	84	April 2015	22	.591	13	9	3.23	208	0	9	209.0	182	75	16	60	8	3	861	16	8.96	2.58	3.47	0.69	24.2	7.0	1.16	.292	3.62	7.84
9	Diamondbacks	86	April 2015	21	.476	10	11	3.88	135	1	1	190.0	196	82	15	56	2	8	799	3	6.39	2.65	2.41	0.71	16.9	7.0	1.33	.306	4.07	9.28
10	Rays	86	April 2015	22	.545	12	10	3.70	184	0	10	199.1	155	82	20	71	12	2	820	11	8.31	3.21	2.59	0.90	22.4	8.7	1.13	.253	3.88	7.00
11	Marlins	87	April 2015	22	.455	10	12	4.01	141	0	2	193.0	167	86	17	67	2	1	791	6	6.58	3.12	2.10	0.79	17.8	8.5	1.21	.266	4.06	7.79
12	Angels	88	April 2015	22	.500	11	11	3.83	151	0	9	195.0	181	83	23	66	13	6	832	10	6.97	3.05	2.29	1.06	18.1	7.9	1.27	.273	4.06	8.35
13	White Sox	89	April 2015	19	.421	8	11	4.57	144	0	3	167.1	174	85	18	49	7	5	719	4	7.75	2.64	2.94	0.97	20.0	6.8	1.33	.311	4.79	9.36
14	Giants	94	April 2015	22	.409	9	13	3.96	145	0	6	200.0	203	88	22	65	9	6	851	6	6.53	2.93	2.23	0.99	17.0	7.6	1.34	.297	4.23	9.14
15	Reds	95	April 2015	22	.500	11	11	3.93	183	0	5	199.1	171	87	27	62	7	10	823	8	8.26	2.80	2.95	1.22	22.2	7.5	1.17	.265	4.29	7.72
16	Rangers	96	April 2015	21	.333	7	14	4.18	138	0	2	189.2	204	88	19	74	6	4	832	8	6.55	3.51	1.86	0.90	16.6	8.9	1.47	.311	4.56	9.68
17	Mariners	96	April 2015	22	.455	10	12	3.93	178	1	8	201.1	193	88	14	72	8	12	863	9	7.96	3.22	2.47	0.63	20.6	8.3	1.32	.303	4.29	8.63
18	Indians	98	April 2015	21	.333	7	14	4.54	202	0	4	184.1	196	93	17	74	8	13	810	10	9.86	3.61	2.73	0.83	24.9	9.1	1.46	.352	4.78	9.57
19	Tigers	98	April 2015	23	.652	15	8	4.06	155	0	10	204.0	194	92	17	60	4	2	846	6	6.84	2.65	2.58	0.75	18.3	7.1	1.25	.290	4.32	8.56
20	Athletics	99	April 2015	23	.391	9	14	3.65	172	0	2	207.0	178	84	19	66	11	5	861	8	7.48	2.87	2.61	0.83	20.0	7.7	1.18	.268	4.30	7.74
21	Twins	100	April 2015	22	.455	10	12	4.36	116	0	7	194.0	202	94	24	60	6	6	831	11	5.38	2.78	1.93	1.11	14.0	7.2	1.35	.285	4.64	9.37
22	Braves	103	April 2015	22	.455	10	12	4.33	152	0	8	193.1	179	93	23	87	6	4	830	7	7.08	4.05	1.75	1.07	18.3	10.5	1.38	.278	4.79	8.33
23	Orioles	104	April 2015	20	.500	10	10	4.78	143	0	4	173.1	154	92	26	79	9	2	747	7	7.43	4.10	1.81	1.35	19.1	10.6	1.34	.261	5.40	8.00
24	Rockies	105	April 2015	21	.524	11	10	4.62	144	0	8	187.0	202	96	20	77	10	2	820	9	6.93	3.71	1.87	0.96	17.6	9.4	1.49	.320	5.05	9.72
25	Nationals	107	April 2015	23	.435	10	13	3.69	173	0	5	202.1	220	83	11	62	10	5	882	5	7.70	2.76	2.79	0.49	19.6	7.0	1.39	.334	4.76	9.79