which team has the least runs allowed in a season in the live ball era over 120 games

Since 1920, the Baltimore Orioles have allowed the fewest runs by a team with more than 120 games pitched in a season, with 430 runs in 1972.

	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	Orioles	430	154	1972	.519	80	74	154	2.53	788	62	18	21	1371.2	1,116	386	85	395	15	52	5,493	35	5.17	2.59	1.99	0.56	14.3	7.2	1.10	.245	2.82	7.32
2	Athletics	457	155	1972	.600	93	62	155	2.58	862	42	15	43	1417.2	1,170	406	96	418	19	41	5,718	29	5.47	2.65	2.06	0.61	15.1	7.3	1.12	.248	2.90	7.43
3	Cardinals	472	162	1968	.599	97	65	162	2.49	971	63	27	32	1479.0	1,282	409	82	375	28	62	6,006	30	5.91	2.28	2.59	0.50	16.2	6.2	1.12	.264	2.87	7.80
4	Cardinals	473	157	1943	.682	105	49	157	2.57	639	94	20	15	1427.0	1,246	407	33	477	18		5,841	20	4.03	3.01	1.34	0.21	10.9	8.2	1.21	.260	2.98	7.86
5	Cardinals	480	156	1942	.688	106	48	156	2.55	651	70	18	15	1410.1	1,192	399	49	473	19		5,800	31	4.15	3.02	1.38	0.31	11.2	8.2	1.18	.248	3.06	7.61
6	Dodgers	490	162	1966	.586	95	67	162	2.62	1,084	52	13	34	1458.0	1,287	425	84	356	27	67	5,941	42	6.69	2.20	3.04	0.52	18.2	6.0	1.13	.274	3.02	7.94
7	Cardinals	490	157	1944	.682	105	49	157	2.67	637	89	26	12	1427.0	1,228	424	55	468	22		5,838	13	4.02	2.95	1.36	0.35	10.9	8.0	1.19	.252	3.09	7.74
8	White Sox	491	162	1967	.549	89	73	162	2.45	927	36	17	39	1490.1	1,197	406	87	465	58	46	6,074	54	5.60	2.81	1.99	0.53	15.3	7.7	1.12	.245	2.97	7.23
9	Tigers	492	164	1968	.636	103	59	164	2.71	1,115	59	16	29	1489.2	1,180	449	129	486	32	40	6,043	38	6.74	2.94	2.29	0.78	18.5	8.0	1.12	.246	2.97	7.13
10	Orioles	497	162	1968	.562	91	71	162	2.66	1,044	53	15	31	1451.0	1,111	429	101	502	46	42	5,864	53	6.48	3.11	2.08	0.63	17.8	8.6	1.11	.242	3.08	6.89
11	Mets	499	163	1968	.451	73	89	163	2.72	1,014	45	17	33	1483.1	1,250	449	87	430	45	67	6,028	59	6.15	2.61	2.36	0.53	16.8	7.1	1.13	.261	3.03	7.58
12	White Sox	501	162	1964	.605	98	64	162	2.72	955	44	16	45	1467.2	1,216	444	124	401	31	42	5,910	49	5.86	2.46	2.38	0.76	16.2	6.8	1.10	.248	3.07	7.46
13	Indians	504	162	1968	.534	86	75	162	2.66	1,157	48	20	32	1464.1	1,087	432	98	540	53	64	5,966	42	7.11	3.32	2.14	0.60	19.4	9.1	1.11	.240	3.10	6.68
14	Indians	504	156	1954	.721	111	43	156	2.78	678	77	12	38	1419.1	1,220	439	89	486	16		5,866	13	4.30	3.08	1.40	0.56	11.6	8.3	1.20	.246	3.20	7.74
15	Yankees	507	154	1942	.669	103	51	154	2.91	558	88	18	17	1375.0	1,259	444	71	431	17		5,667	17	3.65	2.82	1.29	0.46	9.8	7.6	1.23	.259	3.32	8.24
16	Dodgers	509	162	1968	.469	76	86	162	2.69	994	38	20	32	1449.1	1,293	433	65	414	37	79	5,951	43	6.17	2.57	2.40	0.40	16.7	7.0	1.18	.277	3.16	8.03
17	Pirates	512	155	1972	.619	96	59	155	2.81	838	39	9	48	1414.1	1,282	441	90	433	29	60	5,845	34	5.33	2.76	1.94	0.57	14.3	7.4	1.21	.268	3.26	8.16
18	Dodgers	512	155	1942	.675	104	50	155	2.84	612	67	15	24	1398.2	1,205	442	73	493	33		5,814	14	3.94	3.17	1.24	0.47	10.5	8.5	1.21	.246	3.29	7.75
19	Dodgers	513	162	2022	.685	111	51	162	2.80	1,465	1	1	43	1451.1	1,114	451	152	407	75	13	5,865	38	9.08	2.52	3.60	0.94	25.0	6.9	1.05	.255	3.18	6.91
20	Tigers	514	156	1972	.551	86	70	156	2.96	952	46	11	33	1388.1	1,212	457	101	465	47	41	5,748	41	6.17	3.01	2.05	0.65	16.6	8.1	1.21	.266	3.33	7.86
21	Giants	514	156	1933	.599	91	61	156	2.71	555	75	22	15	1408.2	1,280	424	61	400	25		5,811	30	3.55	2.56	1.39	0.39	9.6	6.9	1.19	.256	3.28	8.18
22	Orioles	517	162	1969	.673	109	53	162	2.83	897	50	19	36	1473.2	1,194	463	117	498	22	55	5,972	34	5.48	3.04	1.80	0.71	15.0	8.3	1.15	.243	3.16	7.29
23	White Sox	517	163	1966	.512	83	79	163	2.68	896	38	19	34	1475.1	1,229	440	101	403	36	55	5,982	68	5.47	2.46	2.22	0.62	15.0	6.7	1.11	.248	3.15	7.50
24	Astros	518	162	2022	.654	106	56	162	2.90	1,524	3	1	53	1445.1	1,121	465	134	458	60	6	5,856	56	9.49	2.85	3.33	0.83	26.0	7.8	1.09	.268	3.23	6.98
25	Indians	519	156	1972	.462	72	84	156	2.92	846	47	11	25	1410.0	1,232	457	123	534	40	92	5,877	43	5.40	3.41	1.58	0.79	14.4	9.1	1.25	.256	3.31	7.86