american league average earned run average 1991

The Boston Red Sox had an ERA of 4.01 in the AL in 1991.

	TEAM	ERA	SEASON	G	W%	W	L	GS	SO	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Red Sox	4.01	1991	162	.519	84	78	162	999	15	4	45	1439.2	1,405	642	712	147	530	31	59	6,126	42	6.25	3.31	1.88	0.92	16.3	8.7	1.34	.285	4.45	8.78
2	White Sox	3.79	1991	162	.537	87	75	162	923	28	5	40	1478.0	1,302	622	681	154	601	31	25	6,194	44	5.62	3.66	1.54	0.94	14.9	9.7	1.29	.256	4.15	7.93
3	Indians	4.23	1991	162	.352	57	105	162	862	22	3	33	1441.1	1,551	678	759	110	441	39	61	6,231	48	5.38	2.75	1.95	0.69	13.8	7.1	1.38	.302	4.74	9.68
4	Tigers	4.51	1991	162	.519	84	78	162	739	18	4	38	1450.1	1,570	726	794	148	593	24	88	6,343	50	4.59	3.68	1.25	0.92	11.7	9.3	1.49	.294	4.93	9.74
5	Orioles	4.59	1991	162	.414	67	95	162	868	8	2	42	1457.2	1,534	743	796	147	504	28	40	6,247	49	5.36	3.11	1.72	0.91	13.9	8.1	1.40	.295	4.91	9.47
6	Athletics	4.57	1991	162	.519	84	78	162	892	14	3	49	1444.1	1,425	734	776	155	655	55	30	6,299	60	5.56	4.08	1.36	0.97	14.2	10.4	1.44	.280	4.84	8.88
7	Twins	3.69	1991	162	.586	95	67	162	876	21	6	53	1449.1	1,402	595	652	139	488	27	38	6,101	57	5.44	3.03	1.80	0.86	14.4	8.0	1.30	.276	4.05	8.71
8	Yankees	4.42	1991	162	.438	71	91	162	936	3	2	37	1444.0	1,510	709	777	152	506	42	29	6,209	53	5.83	3.15	1.85	0.95	15.1	8.1	1.40	.297	4.84	9.41
9	Angels	3.69	1991	162	.500	81	81	162	990	18	3	50	1441.2	1,351	591	649	141	543	38	29	6,059	49	6.18	3.39	1.82	0.88	16.3	9.0	1.31	.278	4.05	8.43
10	Rangers	4.47	1991	162	.525	85	77	162	1,022	9	4	41	1479.0	1,486	734	814	151	662	45	37	6,487	77	6.22	4.03	1.54	0.92	15.8	10.2	1.45	.290	4.95	9.04
11	Royals	3.92	1991	162	.506	82	80	162	1,004	17	7	41	1466.0	1,473	639	722	105	529	43	44	6,310	47	6.16	3.25	1.90	0.64	15.9	8.4	1.37	.296	4.43	9.04
12	Brewers	4.14	1991	162	.512	83	79	162	859	23	6	41	1463.2	1,498	674	744	147	527	45	31	6,302	53	5.28	3.24	1.63	0.90	13.6	8.4	1.38	.286	4.57	9.21
13	Mariners	3.79	1991	162	.512	83	79	162	1,003	10	5	48	1464.1	1,387	616	674	136	628	47	50	6,261	82	6.16	3.86	1.60	0.84	16.0	10.0	1.38	.281	4.14	8.52
14	Blue Jays	3.50	1991	162	.562	91	71	162	971	10	2	60	1462.2	1,301	569	622	121	523	43	41	6,136	55	5.97	3.22	1.86	0.74	15.8	8.5	1.25	.264	3.83	8.01