The Baltimore Orioles allowed the most runs by a team in 2021, with 956 runs.

	TEAM	R	SEASON	G	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	956	2021	162	.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
2	Diamondbacks	893	2021	162	.321	52	110	162	5.11	1,238	3	3	22	1417.1	1,480	804	232	555	75	45	6,270	43	7.86	3.52	2.23	1.47	19.7	8.9	1.44	.299	5.67	9.40
3	Cubs	839	2021	162	.438	71	91	162	4.87	1,358	1	0	40	1412.2	1,386	765	235	596	98	25	6,202	60	8.65	3.80	2.28	1.50	21.9	9.6	1.40	.294	5.35	8.83
4	Twins	834	2021	162	.451	73	89	162	4.83	1,317	1	0	42	1419.1	1,392	762	239	484	62	13	6,080	48	8.35	3.07	2.72	1.52	21.7	8.0	1.32	.290	5.29	8.83
5	Pirates	833	2021	162	.377	61	101	162	5.08	1,312	0	0	25	1396.1	1,400	788	213	606	78	26	6,140	55	8.46	3.91	2.17	1.37	21.4	9.9	1.44	.302	5.37	9.02
6	Nationals	820	2021	162	.401	65	97	162	4.80	1,346	1	0	36	1394.1	1,364	743	247	548	71	46	6,073	43	8.69	3.54	2.46	1.59	22.2	9.0	1.37	.289	5.29	8.80
7	Rangers	815	2021	162	.370	60	102	162	4.79	1,239	0	0	31	1424.1	1,402	758	232	513	61	11	6,103	67	7.83	3.24	2.42	1.47	20.3	8.4	1.34	.288	5.15	8.86
8	Angels	804	2021	162	.475	77	85	162	4.69	1,453	1	0	39	1421.2	1,373	741	188	592	76	18	6,196	56	9.20	3.75	2.45	1.19	23.5	9.6	1.38	.305	5.09	8.69
9	Rockies	796	2021	161	.460	74	87	161	4.82	1,269	3	1	33	1397.0	1,397	748	196	539	63	19	6,044	67	8.18	3.47	2.35	1.26	21.0	8.9	1.39	.302	5.13	9.00
10	Royals	788	2021	162	.457	74	88	162	4.64	1,344	1	0	37	1417.1	1,375	731	189	591	62	16	6,127	86	8.53	3.75	2.27	1.20	21.9	9.6	1.39	.301	5.00	8.73
11	Reds	760	2021	162	.512	83	79	162	4.40	1,524	1	1	41	1434.1	1,330	702	206	617	64	30	6,199	62	9.56	3.87	2.47	1.29	24.6	10.0	1.36	.297	4.77	8.35
12	Tigers	756	2021	162	.475	77	85	162	4.32	1,259	2	1	42	1419.2	1,370	681	199	571	82	10	6,164	80	7.98	3.62	2.20	1.26	20.4	9.3	1.37	.289	4.79	8.69
13	Red Sox	749	2021	162	.568	92	70	162	4.26	1,527	0	0	49	1419.0	1,409	671	176	546	79	31	6,147	63	9.68	3.46	2.80	1.12	24.8	8.9	1.38	.323	4.75	8.94
14	Mariners	748	2021	162	.556	90	72	162	4.30	1,328	1	0	51	1440.1	1,356	688	197	485	69	23	6,106	58	8.30	3.03	2.74	1.23	21.7	7.9	1.28	.288	4.67	8.47
15	Phillies	745	2021	162	.506	82	80	162	4.39	1,480	5	4	36	1418.2	1,321	692	200	509	75	37	6,055	49	9.39	3.23	2.91	1.27	24.4	8.4	1.29	.296	4.73	8.38
16	Indians	727	2021	162	.494	80	82	162	4.34	1,391	0	0	39	1408.0	1,281	679	216	522	59	12	5,968	52	8.89	3.34	2.66	1.38	23.3	8.7	1.28	.282	4.65	8.19
17	Padres	708	2021	162	.488	79	83	162	4.10	1,517	2	2	43	1430.0	1,277	651	205	516	87	33	6,056	57	9.55	3.25	2.94	1.29	25.0	8.5	1.25	.287	4.46	8.04
18	Marlins	701	2021	162	.414	67	95	162	3.96	1,381	1	0	33	1415.0	1,282	622	162	529	88	43	6,027	58	8.78	3.36	2.61	1.03	22.9	8.8	1.28	.290	4.46	8.15
19	Athletics	687	2021	162	.531	86	76	162	4.02	1,332	3	3	39	1433.0	1,362	640	191	439	64	11	6,060	63	8.37	2.76	3.03	1.20	22.0	7.2	1.26	.290	4.31	8.55
20	Cardinals	672	2021	162	.556	90	72	162	3.98	1,225	3	1	50	1417.0	1,234	626	152	608	85	30	6,046	66	7.78	3.86	2.01	0.97	20.3	10.1	1.30	.272	4.27	7.84
21	Yankees	669	2021	162	.568	92	70	162	3.74	1,569	3	2	47	1435.1	1,243	596	196	492	56	10	5,999	85	9.84	3.08	3.19	1.23	26.2	8.2	1.21	.284	4.19	7.79
22	Mets	668	2021	162	.475	77	85	162	3.90	1,453	2	1	41	1379.1	1,221	597	190	475	70	21	5,785	53	9.48	3.10	3.06	1.24	25.1	8.2	1.23	.287	4.36	7.97
23	Blue Jays	663	2021	162	.562	91	71	162	3.91	1,468	1	1	34	1405.1	1,257	610	209	473	75	10	5,916	54	9.40	3.03	3.10	1.34	24.8	8.0	1.23	.284	4.25	8.05
24	Astros	658	2021	162	.586	95	67	162	3.78	1,456	2	0	34	1445.0	1,231	607	187	549	70	12	6,060	72	9.07	3.42	2.65	1.16	24.0	9.1	1.23	.275	4.10	7.67
25	Braves	656	2021	161	.547	88	73	161	3.88	1,417	2	2	40	1410.2	1,237	608	183	516	66	34	5,944	73	9.04	3.29	2.75	1.17	23.8	8.7	1.24	.280	4.19	7.89