most runs allowed per game by an mlb team in a single season since 1940

Since 1940, the Detroit Tigers have allowed the most runs by a team in a season, with 1,103 runs in 1996.

	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	Tigers	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	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	Orioles	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
4	Rangers	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
5	Royals	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
6	Rangers	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
7	Rangers	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
8	Rangers	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
9	Rockies	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
10	Rockies	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
11	Rockies	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
12	Rockies	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
13	Indians	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
14	Orioles	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
15	Mets	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
16	Athletics	946	162	1997	.401	65	97	162	5.48	953	2	0	38	1445.1	1,734	880	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
17	Devil Rays	944	162	2007	.407	66	96	162	5.53	1,194	2	1	28	1429.2	1,649	879	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
18	Astros	944	162	2000	.444	72	90	162	5.42	1,064	8	1	30	1437.2	1,596	865	234	598	60	25	6,455	55	6.66	3.74	1.78	1.46	16.5	9.3	1.53	.303	5.91	9.99
19	Angels	943	161	1996	.435	70	91	161	5.30	1,052	12	3	38	1439.0	1,546	847	219	662	84	47	6,461	80	6.58	4.14	1.59	1.37	16.3	10.2	1.53	.299	5.90	9.67
20	Devil Rays	936	162	2005	.414	67	95	162	5.39	949	1	0	43	1421.2	1,570	851	194	615	64	41	6,384	53	6.01	3.89	1.54	1.23	14.9	9.6	1.54	.302	5.93	9.94
21	Royals	935	162	2005	.346	56	106	162	5.49	924	4	0	25	1413.1	1,640	862	178	580	74	33	6,370	69	5.88	3.69	1.59	1.13	14.5	9.1	1.57	.317	5.95	10.44
22	Athletics	932	154	1940	.351	54	100	154	5.22	488	72	4	12	1345.0	1,543	780	135	534	15		6,090	40	3.27	3.57	0.91	0.90	8.0	8.8	1.54	.286	6.24	10.32
23	White Sox	931	163	1998	.494	80	82	163	5.22	911	8	0	42	1438.2	1,569	835	211	580	54	20	6,368	58	5.70	3.63	1.57	1.32	14.3	9.1	1.49	.294	5.82	9.82
24	Royals	930	162	2000	.475	77	85	162	5.48	927	10	3	29	1439.1	1,585	876	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
25	Rockies	929	162	2024	.377	61	101	162	5.47	1,118	0	0	37	1426.2	1,604	867	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