The St. Louis Cardinals allowed the fewest runs by a team in August 2009, with 79 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	79	August 2009	26	.769	20	6	3.06	160	0	12	232.0	220	79	17	56	6	4	948	2	6.21	2.17	2.86	0.66	16.9	5.9	1.19	.286	3.06	8.53
2	Phillies	97	August 2009	27	.593	16	11	3.33	188	1	8	240.1	232	89	23	69	10	6	1,001	7	7.04	2.58	2.72	0.86	18.8	6.9	1.25	.294	3.63	8.69
3	Dodgers	98	August 2009	29	.483	14	15	3.17	239	0	6	267.0	232	94	25	95	12	9	1,113	10	8.06	3.20	2.52	0.84	21.5	8.5	1.22	.279	3.30	7.82
4	Braves	101	August 2009	28	.607	17	11	3.39	220	0	5	252.0	259	95	23	76	5	9	1,059	3	7.86	2.71	2.89	0.82	20.8	7.2	1.33	.321	3.61	9.25
5	Giants	117	August 2009	28	.571	16	12	3.68	220	0	8	254.2	230	104	24	96	5	11	1,071	12	7.77	3.39	2.29	0.85	20.5	9.0	1.28	.284	4.13	8.13
6	Indians	121	August 2009	27	.556	15	12	4.19	157	0	4	243.0	255	113	23	87	6	4	1,053	10	5.81	3.22	1.80	0.85	14.9	8.3	1.41	.297	4.48	9.44
7	Yankees	123	August 2009	28	.750	21	7	4.10	251	0	8	257.0	241	117	31	94	7	4	1,088	8	8.79	3.29	2.67	1.09	23.1	8.6	1.30	.298	4.31	8.44
8	Rockies	124	August 2009	28	.571	16	12	4.27	211	0	6	253.0	257	120	30	96	12	12	1,104	9	7.51	3.42	2.20	1.07	19.1	8.7	1.40	.301	4.41	9.14
9	Rays	126	August 2009	27	.556	15	12	4.22	194	0	5	243.1	230	114	38	67	9	2	1,019	3	7.18	2.48	2.90	1.41	19.0	6.6	1.22	.270	4.66	8.51
10	Reds	127	August 2009	29	.448	13	16	4.13	183	2	6	268.0	264	123	32	90	11	7	1,132	10	6.15	3.02	2.03	1.07	16.2	8.0	1.32	.284	4.26	8.87
11	Athletics	129	August 2009	29	.483	14	15	4.11	196	0	7	256.1	270	117	32	81	8	1	1,099	9	6.88	2.84	2.42	1.12	17.8	7.4	1.37	.304	4.53	9.48
12	Rangers	133	August 2009	29	.483	14	15	4.56	213	1	7	252.2	250	128	34	105	13	3	1,094	7	7.59	3.74	2.03	1.21	19.5	9.6	1.41	.296	4.74	8.91
13	Mariners	135	August 2009	29	.517	15	14	4.09	193	0	6	266.1	246	121	40	97	10	1	1,127	10	6.52	3.28	1.99	1.35	17.1	8.6	1.29	.262	4.56	8.31
14	Diamondbacks	137	August 2009	29	.517	15	14	4.32	202	0	6	254.0	251	122	36	76	11	6	1,086	18	7.16	2.69	2.66	1.28	18.6	7.0	1.29	.283	4.85	8.89
15	Cubs	140	August 2009	28	.393	11	17	4.66	220	0	6	247.0	239	128	30	94	14	7	1,055	10	8.02	3.43	2.34	1.09	20.9	8.9	1.35	.300	5.10	8.71
16	Padres	141	August 2009	29	.517	15	14	4.74	197	0	8	258.1	277	136	27	122	10	8	1,148	10	6.86	4.25	1.61	0.94	17.2	10.6	1.54	.316	4.91	9.65
17	Red Sox	143	August 2009	28	.571	16	12	4.90	223	0	5	255.1	266	139	43	110	13	7	1,129	7	7.86	3.88	2.03	1.52	19.8	9.7	1.47	.301	5.04	9.38
18	White Sox	143	August 2009	28	.393	11	17	4.69	197	0	5	251.1	273	131	38	92	4	8	1,089	11	7.05	3.29	2.14	1.36	18.1	8.4	1.45	.310	5.12	9.78
19	Tigers	144	August 2009	29	.552	16	13	4.74	192	0	10	258.1	266	136	39	100	8	6	1,129	6	6.69	3.48	1.92	1.36	17.0	8.9	1.42	.287	5.02	9.27
20	Blue Jays	147	August 2009	26	.385	10	16	5.24	197	0	4	230.1	266	134	33	82	9	4	1,020	7	7.70	3.20	2.40	1.29	19.3	8.0	1.51	.333	5.74	10.39
21	Astros	149	August 2009	28	.429	12	16	5.17	190	0	10	243.2	277	140	26	99	14	14	1,099	10	7.02	3.66	1.92	0.96	17.3	9.0	1.54	.326	5.50	10.23
22	Brewers	149	August 2009	27	.481	13	14	5.18	170	0	6	240.0	269	138	37	95	10	14	1,077	6	6.38	3.56	1.79	1.39	15.8	8.8	1.52	.303	5.59	10.09
23	Angels	150	August 2009	29	.586	17	12	5.03	196	2	7	259.2	287	145	40	91	10	5	1,135	10	6.79	3.15	2.15	1.39	17.3	8.0	1.46	.310	5.20	9.95
24	Twins	151	August 2009	28	.500	14	14	5.21	199	1	7	247.0	290	143	29	78	13	3	1,100	3	7.25	2.84	2.55	1.06	18.1	7.1	1.49	.334	5.50	10.57
25	Mets	151	August 2009	29	.345	10	19	5.21	199	0	6	254.0	283	147	31	110	16	15	1,152	9	7.05	3.90	1.81	1.10	17.3	9.5	1.55	.317	5.35	10.03