mlb teams with the most allowed average runs per game in a season since 1950

Since 1950, the Detroit Tigers have the most runs allowed per game pitched by a team in a season, with 6.81 in 1996.

	TEAM	R/G	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	Tigers	6.81	1,103	162	1996	.327	53	109	162	6.38	957	10	4	22	1432.2	1,699	1,015	241	784	80	63	6,713	82	6.01	4.93	1.22	1.51	14.3	11.7	1.73	.313	6.93	10.67
2	Rockies	6.35	1,028	162	1999	.444	72	90	162	6.01	1,032	12	1	33	1429.0	1,700	955	237	737	60	46	6,574	70	6.50	4.64	1.40	1.49	15.7	11.2	1.71	.325	6.47	10.71
3	Rockies	6.3	1,021	162	2025	.265	43	119	162	5.97	1,093	0	0	29	1407.1	1,673	933	251	554	73	19	6,367	60	6.99	3.54	1.97	1.61	17.2	8.7	1.58	.323	6.53	10.70
4	Twins	6.17	889	144	1995	.389	56	88	144	5.76	790	7	2	27	1272.2	1,450	815	210	533	36	18	5,714	52	5.59	3.77	1.48	1.49	13.8	9.3	1.56	.299	6.29	10.25
5	Rangers	6.11	697	114	1994	.456	52	62	114	5.45	683	10	3	26	1023.0	1,176	620	157	394	32	29	4,595	50	6.01	3.47	1.73	1.38	14.9	8.6	1.53	.306	6.13	10.35
6	Twins	6.09	688	113	1994	.469	53	60	113	5.68	602	6	2	29	1005.0	1,197	634	153	388	31	20	4,507	43	5.39	3.47	1.55	1.37	13.4	8.6	1.58	.313	6.16	10.72
7	Orioles	6.06	981	162	2019	.333	54	108	162	5.59	1,248	0	0	27	1443.0	1,544	897	305	561	80	11	6,396	75	7.78	3.50	2.22	1.90	19.5	8.8	1.46	.295	6.12	9.63
8	Rangers	6.01	974	162	2000	.438	71	91	162	5.52	918	3	0	39	1429.0	1,683	876	202	661	63	40	6,559	40	5.78	4.16	1.39	1.27	14.0	10.1	1.64	.314	6.13	10.60
9	Royals	5.99	971	162	2006	.383	62	100	162	5.65	904	3	2	35	1426.1	1,648	896	213	637	60	45	6,434	85	5.70	4.02	1.42	1.34	14.1	9.9	1.60	.311	6.13	10.40
10	Rangers	5.98	969	162	2003	.438	71	91	162	5.67	1,009	4	2	43	1433.1	1,625	903	208	603	63	45	6,413	51	6.34	3.79	1.67	1.31	15.7	9.4	1.55	.313	6.08	10.20
11	Rangers	5.98	968	162	2001	.451	73	89	162	5.71	951	4	1	37	1438.1	1,670	913	222	596	63	33	6,469	70	5.95	3.73	1.60	1.39	14.7	9.2	1.58	.312	6.06	10.45
12	Rangers	5.97	967	162	2008	.488	79	83	162	5.37	963	6	2	36	1442.0	1,647	860	176	625	72	44	6,506	62	6.01	3.90	1.54	1.10	14.8	9.6	1.58	.315	6.04	10.28
13	Rockies	5.97	967	162	1993	.414	67	95	162	5.41	913	9	0	35	1431.1	1,664	860	181	609	41	66	6,471	82	5.74	3.83	1.50	1.14	14.1	9.4	1.59	.314	6.08	10.46
14	Senators	5.96	924	155	1956	.383	59	95	155	5.33	663	36	1	18	1368.2	1,539	811	171	730	33	26	6,263	39	4.36	4.80	0.91	1.12	10.6	11.7	1.66	.293	6.08	10.12
15	Rockies	5.95	964	162	1996	.512	83	79	162	5.59	932	5	1	34	1422.2	1,597	884	198	624	69	19	6,391	66	5.90	3.95	1.49	1.25	14.6	9.8	1.56	.306	6.10	10.10
16	Browns	5.95	916	154	1950	.377	58	96	154	5.20	448	56	7	14	1365.1	1,629	789	129	651	32		6,285	28	2.95	4.29	0.69	0.85	7.1	10.4	1.67	.299	6.04	10.74
17	Athletics	5.93	913	154	1950	.338	52	102	154	5.49	466	50	3	18	1346.1	1,528	821	138	729	30		6,167	40	3.12	4.87	0.64	0.92	7.6	11.8	1.68	.289	6.10	10.21
18	Rockies	5.91	958	162	2019	.438	71	91	162	5.56	1,264	1	1	28	1448.2	1,576	895	270	589	57	33	6,423	63	7.85	3.66	2.15	1.68	19.7	9.2	1.49	.308	5.95	9.79
19	Rockies	5.91	957	162	2023	.364	59	103	162	5.67	1,129	0	0	31	1414.0	1,599	891	234	586	86	13	6,316	51	7.19	3.73	1.93	1.49	17.9	9.3	1.55	.319	6.09	10.18
20	Indians	5.91	957	162	1987	.377	61	101	162	5.28	849	24	4	25	1422.2	1,566	835	219	606	50	28	6,395	74	5.37	3.83	1.40	1.39	13.3	9.5	1.53	.288	6.05	9.91
21	Orioles	5.9	956	162	2021	.321	52	110	162	5.84	1,234	1	1	26	1402.0	1,518	910	258	563	68	12	6,252	88	7.92	3.61	2.19	1.66	19.7	9.0	1.48	.305	6.14	9.74
22	Mets	5.89	948	161	1962	.250	40	120	161	5.04	772	43	4	10	1430.0	1,577	801	192	571	52	28	6,365	71	4.86	3.59	1.35	1.21	12.1	9.0	1.50	.290	5.97	9.93
23	Rockies	5.88	353	60	2020	.433	26	34	60	5.59	393	1	0	16	526.1	579	327	83	205	40	5	2,335	29	6.72	3.51	1.92	1.42	16.8	8.8	1.49	.307	6.04	9.90
24	Athletics	5.88	911	155	1955	.409	63	91	155	5.35	573	29	7	23	1382.0	1,486	822	175	707	42	59	6,243	36	3.73	4.60	0.81	1.14	9.2	11.3	1.59	.276	5.93	9.68
25	Tigers	5.86	844	144	1995	.417	60	84	144	5.49	729	5	1	38	1275.0	1,509	778	170	536	45	79	5,774	67	5.15	3.78	1.36	1.20	12.6	9.3	1.60	.312	5.96	10.65