least runs allowed by a team in a season mlb between 2009 to 2019

Between the 2009 and 2019 seasons, the St. Louis Cardinals gave up the fewest runs by a team in a season, with 525 runs in 2015.

	TEAM	R	SEASON	G	W%	W	L	GS	ERA	SO	CG	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	525	2015	162	.617	100	62	162	2.94	1,329	1	0	62	1464.2	1,359	478	123	477	45	37	6,134	48	8.17	2.93	2.79	0.76	21.7	7.8	1.25	.297	3.23	8.35
2	Phillies	529	2011	162	.630	102	60	162	3.02	1,299	18	7	47	1477.0	1,320	495	120	404	47	41	6,069	23	7.92	2.46	3.22	0.73	21.4	6.7	1.17	.286	3.22	8.04
3	Astros	534	2018	162	.636	103	59	162	3.11	1,687	2	2	46	1455.0	1,164	503	152	435	66	4	5,913	67	10.44	2.69	3.88	0.94	28.5	7.4	1.10	.283	3.30	7.20
4	Braves	548	2013	162	.593	96	66	162	3.18	1,232	1	0	53	1450.1	1,326	512	127	409	51	35	5,989	50	7.65	2.54	3.01	0.79	20.6	6.8	1.20	.288	3.40	8.23
5	Mariners	554	2014	162	.537	87	75	162	3.17	1,317	2	1	51	1452.0	1,240	512	137	463	52	36	5,974	80	8.16	2.87	2.84	0.85	22.0	7.8	1.17	.275	3.43	7.69
6	Nationals	555	2014	162	.593	96	66	162	3.03	1,288	5	4	45	1470.2	1,351	495	110	352	51	26	6,020	37	7.88	2.15	3.66	0.67	21.4	5.8	1.16	.294	3.40	8.27
7	Cubs	556	2016	162	.640	103	58	162	3.15	1,441	5	2	38	1459.2	1,125	511	163	495	63	24	5,933	80	8.88	3.05	2.91	1.01	24.3	8.3	1.11	.255	3.43	6.94
8	Indians	564	2017	162	.630	102	60	162	3.30	1,614	7	3	37	1440.2	1,267	529	163	406	45	15	5,866	48	10.08	2.54	3.98	1.02	27.5	6.9	1.16	.303	3.52	7.92
9	Athletics	572	2014	162	.543	88	74	162	3.22	1,244	7	3	31	1463.1	1,269	524	147	406	48	28	5,972	59	7.65	2.50	3.06	0.90	20.8	6.8	1.14	.272	3.52	7.80
10	Padres	577	2014	162	.475	77	85	162	3.27	1,284	4	3	41	1438.2	1,300	523	117	462	46	32	6,006	57	8.03	2.89	2.78	0.73	21.4	7.7	1.22	.289	3.61	8.13
11	Pirates	577	2013	162	.580	94	68	162	3.26	1,261	3	0	55	1470.2	1,299	533	101	515	70	26	6,147	81	7.72	3.15	2.45	0.62	20.5	8.4	1.23	.285	3.53	7.95
12	Rays	577	2012	162	.556	90	72	162	3.19	1,383	7	4	50	1459.2	1,233	518	139	469	54	35	6,000	59	8.53	2.89	2.95	0.86	23.1	7.8	1.17	.277	3.56	7.60
13	Giants	578	2011	162	.531	86	76	162	3.20	1,316	3	2	52	1468.0	1,260	522	96	559	50	46	6,130	42	8.07	3.43	2.35	0.59	21.5	9.1	1.24	.283	3.54	7.72
14	Dodgers	580	2017	162	.642	104	58	162	3.38	1,549	2	0	51	1444.2	1,226	543	184	442	40	33	5,925	40	9.65	2.75	3.50	1.15	26.1	7.5	1.15	.281	3.61	7.64
15	Padres	581	2010	162	.556	90	72	162	3.39	1,295	2	2	49	1456.1	1,305	549	139	517	28	51	6,058	29	8.00	3.20	2.50	0.86	21.4	8.5	1.25	.286	3.59	8.06
16	Dodgers	582	2013	162	.568	92	70	162	3.25	1,292	7	4	46	1450.1	1,321	524	127	460	43	44	6,032	66	8.02	2.85	2.81	0.79	21.4	7.6	1.23	.291	3.61	8.20
17	Giants	583	2010	162	.568	92	70	162	3.36	1,331	6	3	57	1461.0	1,279	546	134	578	51	58	6,159	74	8.20	3.56	2.30	0.83	21.6	9.4	1.27	.282	3.59	7.88
18	Reds	588	2012	162	.599	97	65	162	3.34	1,248	9	2	56	1453.0	1,356	540	152	427	51	33	6,056	34	7.73	2.64	2.92	0.94	20.6	7.1	1.23	.288	3.64	8.40
19	Reds	589	2013	162	.556	90	72	162	3.38	1,296	5	2	43	1473.2	1,294	554	170	435	66	28	6,077	44	7.91	2.66	2.98	1.04	21.3	7.2	1.17	.273	3.60	7.90
20	Orioles	593	2014	162	.593	96	66	162	3.43	1,174	3	2	53	1461.1	1,342	557	151	472	59	25	6,104	42	7.23	2.91	2.49	0.93	19.2	7.7	1.24	.280	3.65	8.27
21	Nationals	594	2012	162	.605	98	64	162	3.33	1,325	3	1	51	1468.1	1,296	543	129	497	47	32	6,133	62	8.12	3.05	2.67	0.79	21.6	8.1	1.22	.282	3.64	7.94
22	Dodgers	595	2015	162	.568	92	70	162	3.44	1,396	6	3	47	1445.2	1,317	553	145	395	38	32	5,932	52	8.69	2.46	3.53	0.90	23.5	6.7	1.18	.296	3.70	8.20
23	Pirates	596	2015	162	.605	98	64	162	3.21	1,338	0	0	54	1489.2	1,392	532	110	453	75	38	6,215	67	8.08	2.74	2.95	0.66	21.5	7.3	1.24	.302	3.60	8.41
24	Cardinals	596	2013	162	.599	97	65	162	3.42	1,254	7	4	44	1459.2	1,366	555	112	451	64	26	6,104	33	7.73	2.78	2.78	0.69	20.5	7.4	1.24	.297	3.67	8.42
25	Braves	597	2014	162	.488	79	83	162	3.38	1,301	5	2	54	1455.0	1,369	547	121	472	37	36	6,087	75	8.05	2.92	2.76	0.75	21.4	7.8	1.27	.300	3.69	8.47