The Tampa Bay Rays put up the most runs by a team in May 2009, with 184 runs.

	TEAM	R	MONTH	G	W%	W	L	AB	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Rays	184	May 2009	30	.533	16	14	1,051	292	62	8	36	171	133	12	233	53	8	1,215	478	106	9	10	13	14	.278	.362	.455	.817
2	Twins	168	May 2009	30	.467	14	16	1,029	287	50	7	41	160	128	11	213	17	6	1,195	474	98	12	15	6	24	.279	.360	.461	.821
3	Indians	157	May 2009	30	.467	14	16	1,038	286	58	6	24	146	113	22	227	15	5	1,196	428	88	14	9	3	27	.276	.356	.412	.769
4	Dodgers	156	May 2009	29	.690	20	9	1,019	291	60	5	14	145	118	11	202	28	9	1,175	403	79	13	14	12	24	.286	.361	.395	.757
5	Yankees	155	May 2009	28	.607	17	11	980	276	60	5	47	152	94	11	170	17	6	1,103	487	112	11	7	3	22	.282	.349	.497	.846
6	Phillies	148	May 2009	28	.607	17	11	964	250	68	6	40	140	109	18	199	28	6	1,105	450	114	8	6	3	18	.259	.344	.467	.810
7	Rangers	148	May 2009	29	.690	20	9	998	273	71	6	42	144	90	5	219	22	6	1,112	482	119	7	12	4	13	.274	.333	.483	.816
8	Nationals	147	May 2009	29	.310	9	20	1,008	268	49	9	34	141	115	14	226	6	7	1,155	437	92	11	7	5	27	.266	.347	.434	.781
9	Reds	144	May 2009	28	.536	15	13	995	269	44	6	39	137	99	10	180	16	10	1,130	442	89	19	7	11	18	.270	.340	.444	.784
10	Tigers	144	May 2009	28	.607	17	11	954	257	47	5	32	137	94	3	170	16	6	1,064	410	84	8	5	3	30	.269	.335	.430	.765
11	Red Sox	141	May 2009	29	.517	15	14	1,004	274	67	4	35	135	109	13	205	21	8	1,134	454	106	2	6	8	28	.273	.350	.452	.802
12	Mets	138	May 2009	28	.679	19	9	951	266	59	4	20	133	122	10	163	38	13	1,110	393	83	15	12	13	25	.280	.363	.413	.777
13	Brewers	136	May 2009	28	.643	18	10	927	231	42	6	30	133	109	11	225	3	2	1,064	375	78	8	9	2	24	.249	.332	.405	.737
14	Braves	135	May 2009	29	.517	15	14	997	265	58	3	18	126	96	9	197	7	6	1,127	383	79	13	12	9	22	.266	.332	.384	.716
15	Orioles	134	May 2009	29	.483	14	15	1,000	267	55	6	40	128	73	10	171	16	9	1,091	454	101	3	5	5	20	.267	.322	.454	.776
16	Diamondbacks	133	May 2009	29	.448	13	16	1,025	257	63	10	28	127	97	10	247	27	8	1,146	424	101	4	10	10	17	.251	.319	.414	.732
17	Rockies	130	May 2009	29	.414	12	17	948	227	52	11	28	124	114	5	203	14	10	1,095	385	91	15	13	5	25	.239	.320	.406	.726
18	Angels	128	May 2009	28	.571	16	12	958	262	40	7	20	122	94	5	168	37	9	1,079	376	67	10	12	8	19	.273	.338	.392	.730
19	Blue Jays	128	May 2009	29	.483	14	15	1,017	280	65	2	24	124	88	10	171	17	5	1,128	421	91	5	8	4	23	.275	.337	.414	.751
20	Astros	127	May 2009	27	.407	11	16	944	272	55	9	20	120	82	9	150	16	11	1,056	405	84	11	10	5	24	.288	.347	.429	.776
21	Athletics	126	May 2009	29	.379	11	18	995	242	48	1	28	120	106	8	177	18	5	1,120	376	77	4	7	2	28	.243	.319	.378	.697
22	Cubs	121	May 2009	28	.536	15	13	908	231	51	6	29	114	97	8	216	12	3	1,026	381	86	7	6	5	21	.254	.330	.420	.749
23	Marlins	119	May 2009	29	.310	9	20	1,014	245	47	3	26	114	100	8	252	17	7	1,144	376	76	14	8	8	9	.242	.312	.371	.683
24	Giants	116	May 2009	29	.517	15	14	989	258	48	5	14	111	71	13	184	22	9	1,099	358	67	14	12	7	21	.261	.315	.362	.677
25	White Sox	115	May 2009	28	.464	13	15	938	239	43	5	25	113	77	10	173	14	10	1,036	367	73	3	8	4	22	.255	.316	.391	.707