which team has the least runs allowed in a season since 1980 over 162 games

Since 1980, the Houston Astros have given up the fewest runs by a team with more than 162 games pitched in a season, with 589 runs in 1980.

	TEAM	R	G	SEASON	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	Astros	589	163	1980	.571	93	70	163	3.10	929	31	13	41	1482.2	1,367	511	69	466	25	26	6,160	38	5.64	2.83	1.99	0.42	15.1	7.6	1.24	.278	3.58	8.30
2	Dodgers	591	163	1980	.564	92	71	163	3.25	835	24	15	42	1472.2	1,358	531	105	480	12	48	6,117	32	5.10	2.93	1.74	0.64	13.7	7.8	1.25	.267	3.61	8.30
3	Expos	592	163	1988	.500	81	81	163	3.08	923	18	6	43	1482.2	1,310	508	122	476	36	61	6,129	39	5.60	2.89	1.94	0.74	15.1	7.8	1.20	.260	3.59	7.95
4	Cardinals	608	164	1989	.531	86	76	164	3.36	844	18	8	43	1461.0	1,330	546	84	482	30	89	6,090	40	5.20	2.97	1.75	0.52	13.9	7.9	1.24	.268	3.75	8.19
5	Astros	609	163	2005	.549	89	73	163	3.51	1,164	6	2	45	1443.0	1,336	563	155	440	59	29	6,023	38	7.26	2.74	2.65	0.97	19.3	7.3	1.23	.281	3.80	8.33
6	Dodgers	609	163	1983	.562	91	71	163	3.10	1,000	27	10	40	1464.0	1,336	505	97	495	20	78	6,132	38	6.15	3.04	2.02	0.60	16.3	8.1	1.25	.274	3.74	8.21
7	Rangers	609	163	1983	.475	77	85	163	3.31	826	43	8	32	1466.2	1,392	540	97	471	38	25	6,127	36	5.07	2.89	1.75	0.60	13.5	7.7	1.27	.276	3.74	8.54
8	Dodgers	610	163	2018	.564	92	71	163	3.38	1,565	0	0	48	1476.0	1,279	554	179	422	61	39	6,096	39	9.54	2.57	3.71	1.09	25.7	6.9	1.15	.284	3.72	7.80
9	Phillies	635	163	1983	.556	90	72	163	3.34	1,092	20	6	41	1461.2	1,429	542	111	464	23	77	6,168	44	6.72	2.86	2.35	0.68	17.7	7.5	1.30	.294	3.91	8.80
10	Rangers	636	163	2013	.558	91	72	163	3.62	1,309	4	2	46	1463.1	1,370	589	157	498	48	35	6,146	68	8.05	3.06	2.63	0.97	21.3	8.1	1.28	.293	3.91	8.43
11	Cubs	645	163	2018	.583	95	68	163	3.65	1,333	1	0	46	1476.1	1,319	598	157	622	66	33	6,264	46	8.13	3.79	2.14	0.96	21.3	9.9	1.31	.284	3.93	8.04
12	Rays	646	163	2013	.564	92	71	163	3.74	1,310	9	3	42	1464.0	1,315	608	153	482	52	38	6,083	69	8.05	2.96	2.72	0.94	21.5	7.9	1.23	.284	3.97	8.08
13	Expos	646	163	1983	.506	82	80	163	3.58	899	38	14	34	1471.0	1,406	585	120	479	33	50	6,151	38	5.50	2.93	1.88	0.73	14.6	7.8	1.28	.278	3.95	8.60
14	Padres	653	163	1983	.500	81	81	163	3.62	850	23	4	44	1467.2	1,389	590	144	528	28	52	6,179	33	5.21	3.24	1.61	0.88	13.8	8.5	1.31	.269	4.00	8.52
15	Padres	654	163	1980	.451	73	89	163	3.65	728	19	4	39	1466.1	1,474	595	97	536	12	113	6,214	39	4.47	3.29	1.36	0.60	11.7	8.6	1.37	.284	4.01	9.05
16	Brewers	659	163	2018	.589	96	67	163	3.73	1,428	0	0	49	1461.0	1,259	606	173	553	61	34	6,114	50	8.80	3.41	2.58	1.07	23.4	9.0	1.24	.279	4.06	7.76
17	Padres	666	163	2007	.546	89	74	163	3.70	1,136	1	0	45	1484.2	1,406	611	119	474	48	48	6,254	42	6.89	2.87	2.40	0.72	18.2	7.6	1.27	.287	4.04	8.52
18	Reds	670	163	1980	.549	89	73	163	3.85	833	30	9	37	1459.1	1,404	624	113	506	13	60	6,143	35	5.14	3.12	1.65	0.70	13.6	8.2	1.31	.276	4.13	8.66
19	Pirates	680	164	1989	.457	74	88	164	3.64	827	20	7	40	1487.2	1,394	602	121	539	29	78	6,309	55	5.00	3.26	1.53	0.73	13.1	8.5	1.30	.266	4.11	8.43
20	Expos	682	163	1993	.580	94	68	163	3.55	934	8	0	61	1456.2	1,369	574	119	521	47	38	6,191	46	5.77	3.22	1.79	0.74	15.1	8.4	1.30	.274	4.21	8.46
21	Orioles	687	163	1982	.580	94	68	163	3.99	719	38	7	34	1462.1	1,436	648	147	488	22	41	6,185	35	4.43	3.00	1.47	0.90	11.6	7.9	1.32	.268	4.23	8.84
22	Cubs	694	163	1988	.475	77	85	163	3.84	897	30	9	29	1464.1	1,494	625	115	490	31	75	6,276	56	5.51	3.01	1.83	0.71	14.3	7.8	1.35	.291	4.27	9.18
23	Blue Jays	696	163	1984	.549	89	73	163	3.86	875	34	7	33	1464.0	1,433	628	140	528	34	40	6,235	42	5.38	3.25	1.66	0.86	14.0	8.5	1.34	.278	4.28	8.81
24	Reds	711	163	1999	.589	96	67	163	3.98	1,081	6	3	55	1462.0	1,309	647	190	636	45	46	6,221	65	6.65	3.92	1.70	1.17	17.4	10.2	1.33	.262	4.38	8.06
25	Mets	711	163	1999	.595	97	66	163	4.27	1,172	5	3	49	1456.2	1,372	691	167	617	52	53	6,232	38	7.24	3.81	1.90	1.03	18.8	9.9	1.37	.285	4.39	8.48