most earned runs per inning allowed by a team in a season

The Philadelphia Phillies have allowed the most earned runs by a team in a season, with 1,024 earned runs in 1930.

	TEAM	ER	SEASON	G	W%	W	L	GS	ERA	SO	CG	SHO	SV	IP	H	R	HR	BB	HBP	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Phillies	1,024	1930	156	.338	52	102	156	6.71	384	54	3	7	1372.2	1,993	1,199	142	543	33		6,549	23	2.52	3.56	0.71	0.93	5.9	8.3	1.85	.340	7.86	13.07
2	Tigers	1,015	1996	162	.327	53	109	162	6.38	957	10	4	22	1432.2	1,699	1,103	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
3	Rockies	955	1999	162	.444	72	90	162	6.01	1,032	12	1	33	1429.0	1,700	1,028	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
4	Browns	935	1936	155	.375	57	95	155	6.24	399	54	3	13	1348.1	1,776	1,064	115	609	47		6,382	44	2.66	4.07	0.66	0.77	6.3	9.5	1.77	.319	7.10	11.85
5	Phillies	918	1929	154	.464	71	82	154	6.13	369	45	5	24	1348.0	1,743	1,036	122	616	39		6,303	21	2.46	4.11	0.60	0.81	5.9	9.8	1.75	.314	6.92	11.64
6	Browns	916	1939	156	.279	43	111	156	6.01	516	56	3	4	1371.1	1,724	1,035	133	739	29		6,474	32	3.39	4.85	0.70	0.87	8.0	11.4	1.80	.315	6.79	11.31
7	Rangers	913	2001	162	.451	73	89	162	5.71	951	4	1	37	1438.1	1,670	968	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
8	Athletics	913	1936	154	.346	53	100	154	6.08	405	68	3	11	1352.1	1,645	1,045	131	696	24		6,301	67	2.70	4.63	0.58	0.87	6.4	11.0	1.73	.300	6.95	10.95
9	Orioles	910	2021	162	.321	52	110	162	5.84	1,234	1	1	26	1402.0	1,518	956	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
10	Browns	909	1937	156	.299	46	108	156	6.00	468	55	2	8	1363.0	1,770	1,023	143	653	30		6,371	34	3.09	4.31	0.72	0.94	7.3	10.2	1.78	.320	6.75	11.69
11	Rangers	903	2003	162	.438	71	91	162	5.67	1,009	4	2	43	1433.1	1,625	969	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
12	Orioles	897	2019	162	.333	54	108	162	5.59	1,248	0	0	27	1443.0	1,544	981	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
13	Royals	896	2006	162	.383	62	100	162	5.65	904	3	2	35	1426.1	1,648	971	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
14	Rockies	895	2019	162	.438	71	91	162	5.56	1,264	1	1	28	1448.2	1,576	958	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
15	Spiders	894	1899	154	.130	20	134	154	6.37	215	138		0	1264.0	1,844	1,252	43	527	109		6,076	40	1.53	3.75	0.41	0.31	3.5	8.7	1.88	.348	8.91	13.13
16	Rockies	891	2023	162	.364	59	103	162	5.67	1,129	0	0	31	1414.0	1,599	957	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
17	Rockies	884	1996	162	.512	83	79	162	5.59	932	5	1	34	1422.2	1,597	964	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
18	Rockies	883	2004	162	.420	68	94	162	5.54	947	3	0	36	1435.1	1,634	923	198	697	71	84	6,535	66	5.94	4.37	1.36	1.24	14.5	10.7	1.62	.311	5.79	10.25
19	Athletics	880	1997	162	.401	65	97	162	5.48	953	2	0	38	1445.1	1,734	946	197	642	64	54	6,600	51	5.93	4.00	1.48	1.23	14.4	9.7	1.64	.324	5.89	10.80
20	Devil Rays	879	2007	162	.407	66	96	162	5.53	1,194	2	1	28	1429.2	1,649	944	199	568	63	31	6,403	55	7.52	3.58	2.10	1.25	18.6	8.9	1.55	.331	5.94	10.38
21	Rangers	876	2000	162	.438	71	91	162	5.52	918	3	0	39	1429.0	1,683	974	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
22	Royals	876	2000	162	.475	77	85	162	5.48	927	10	3	29	1439.1	1,585	930	239	693	42	35	6,443	77	5.80	4.33	1.34	1.49	14.4	10.8	1.58	.296	5.82	9.91
23	Rockies	867	2024	162	.377	61	101	162	5.47	1,118	0	0	37	1426.2	1,604	929	221	563	66	12	6,322	59	7.05	3.55	1.99	1.39	17.7	8.9	1.52	.318	5.86	10.12
24	Browns	867	1938	156	.362	55	97	156	5.80	632	71	3	7	1344.2	1,584	962	132	737	26		6,222	27	4.23	4.93	0.86	0.88	10.2	11.8	1.73	.309	6.44	10.60
25	Athletics	865	2023	162	.309	50	112	162	5.48	1,300	0	0	28	1419.2	1,464	924	213	694	100	33	6,384	76	8.24	4.40	1.87	1.35	20.4	10.9	1.52	.307	5.86	9.28