Roger Clemens had the lowest ERA in the AL in 1990, with an ERA of 1.93.

Interpreted as:

Who had the best era with a minimum of 1 IP per team game in the al in 1990?

	NAME	ERA	SEASON	TM	G	W	L	W%	GS	SO	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Roger Clemens R. Clemens	1.93	1990	BOS	31	21	6	.778	31	209	7	4	0	228.1	193	49	59	7	54	7	0	3	920	8	8.24	2.13	3.87	0.28	22.7	5.9	1.08	.289	2.33	47	2.17	55	7.61	44.8
2	Chuck Finley C. Finley	2.40	1990	CAL	32	18	9	.667	32	177	7	2	0	236.0	210	63	77	17	81	2	0	3	962	9	6.75	3.09	2.19	0.65	18.4	8.4	1.23	.282	2.94	63	3.29	83	8.01	17.2
3	Dave Stewart D. Stewart	2.56	1990	OAK	36	22	11	.667	36	166	11	4	0	267.0	226	76	84	16	83	5	0	1	1,088	8	5.60	2.80	2.00	0.54	15.3	7.6	1.16	.257	2.83	69	3.32	88	7.62	13.9
4	Kevin Appier K. Appier	2.76	1990	KCR	32	12	8	.600	24	127	3	3	0	185.2	179	57	67	13	54	6	1	2	784	6	6.16	2.62	2.35	0.63	16.2	6.9	1.25	.284	3.25	71	3.31	88	8.68	9.1
5	Dave Stieb D. Stieb	2.93	1990	TOR	33	18	6	.750	33	125	2	2	0	208.2	179	68	73	11	64	10	0	0	861	5	5.39	2.76	1.95	0.47	14.5	7.4	1.16	.258	3.15	74	3.35	83	7.72	15.5
6	Bob Welch B. Welch	2.95	1990	OAK	35	27	6	.818	35	127	2	2	0	238.0	214	78	90	26	77	5	0	4	979	2	4.80	2.91	1.65	0.98	13.0	7.9	1.22	.253	3.40	79	4.19	110	8.09	-11.1
7	David Wells D. Wells	3.14	1990	TOR	43	11	6	.647	25	115	0	0	3	189.0	165	66	72	14	45	2	8	3	759	7	5.48	2.14	2.56	0.67	15.2	5.9	1.11	.259	3.43	80	3.29	82	7.86	15.2
8	Greg Hibbard G. Hibbard	3.16	1990	CWS	33	14	9	.609	33	92	3	1	0	211.0	202	74	80	11	55	6	0	2	871	2	3.92	2.35	1.67	0.47	10.6	6.3	1.22	.270	3.41	81	3.47	91	8.62	8.4
9	Erik Hanson E. Hanson	3.24	1990	SEA	33	18	9	.667	33	211	5	1	0	236.0	205	85	88	15	68	2	0	6	964	10	8.05	2.59	3.10	0.57	21.9	7.1	1.16	.284	3.36	81	2.73	68	7.82	32.6
10	Kirk McCaskill K. McCaskill	3.25	1990	CAL	29	12	11	.522	29	78	2	1	0	174.1	161	63	77	9	72	2	0	1	738	6	4.03	3.72	1.08	0.46	10.6	9.8	1.34	.263	3.98	85	3.85	97	8.31	2
11	Mike Boddicker M. Boddicker	3.36	1990	BOS	34	17	8	.680	34	143	4	0	0	228.0	225	85	92	16	69	10	0	6	956	10	5.64	2.72	2.07	0.63	15.0	7.2	1.29	.291	3.63	82	3.50	89	8.88	11.4
12	Bobby Witt B. Witt	3.36	1990	TEX	33	17	10	.630	32	221	7	1	0	222.0	197	83	98	12	110	4	1	3	954	11	8.96	4.46	2.01	0.49	23.2	11.5	1.38	.305	3.97	86	3.05	78	7.99	21.1
13	Nolan Ryan N. Ryan	3.44	1990	TEX	30	13	9	.591	30	232	5	2	0	204.0	137	78	86	18	74	7	0	2	818	9	10.24	3.26	3.14	0.79	28.4	9.0	1.03	.244	3.79	88	2.86	73	6.04	23.7
14	Matt Young M. Young	3.51	1990	SEA	34	8	18	.308	33	176	7	1	0	225.1	198	88	106	15	107	6	0	7	963	16	7.03	4.27	1.64	0.60	18.3	11.1	1.35	.278	4.23	88	3.61	90	7.91	9.5
15	Bud Black B. Black	3.57	1990	TOT	32	13	11	.542	31	106	5	2	0	206.2	181	82	86	19	61	5	1	1	857	6	4.62	2.66	1.74	0.83	12.4	7.1	1.17	.243	3.75	90	3.93	101	7.88	-1.1
16	Kevin Brown K. Brown	3.60	1990	TEX	26	12	10	.545	26	88	6	2	0	180.0	175	72	84	13	60	3	0	3	757	9	4.40	3.00	1.47	0.65	11.6	7.9	1.31	.273	4.20	92	3.81	97	8.75	2
17	Randy Johnson R. Johnson	3.65	1990	SEA	33	14	11	.560	33	194	5	2	0	219.2	174	89	103	26	120	5	0	2	944	4	7.95	4.92	1.62	1.07	20.6	12.7	1.34	.247	4.22	92	4.28	107	7.13	-6.8
18	Tom Candiotti T. Candiotti	3.65	1990	CLE	31	15	11	.577	29	128	3	1	0	202.0	207	82	92	23	55	6	1	1	856	9	5.70	2.45	2.33	1.02	15.0	6.4	1.30	.286	4.10	92	3.92	101	9.22	-1.2
19	Tom Gordon T. Gordon	3.73	1990	KCR	32	12	11	.522	32	175	6	1	0	195.1	192	81	99	17	99	3	0	1	858	11	8.06	4.56	1.77	0.78	20.4	11.5	1.49	.310	4.56	96	3.71	99	8.85	0.7
20	Teddy Higuera T. Higuera	3.76	1990	MIL	27	11	10	.524	27	129	4	1	0	170.0	167	71	80	16	50	3	0	2	720	2	6.83	2.65	2.58	0.85	17.9	6.9	1.28	.289	4.24	98	3.44	89	8.84	8.1
21	Jack McDowell J. McDowell	3.82	1990	CWS	33	14	9	.609	33	165	4	0	0	205.0	189	87	93	20	77	7	0	0	866	7	7.24	3.38	2.14	0.88	19.1	8.9	1.30	.283	4.08	98	3.69	96	8.30	3.1
22	Scott Sanderson S. Sanderson	3.88	1990	OAK	34	17	11	.607	34	128	2	1	0	206.1	205	89	99	27	66	4	0	2	885	7	5.58	2.88	1.94	1.18	14.5	7.5	1.31	.270	4.32	105	4.28	113	8.94	-11.8
23	Greg Harris G. Harris	4.00	1990	BOS	34	13	9	.591	30	117	1	0	0	184.1	186	82	90	13	77	6	3	7	803	8	5.71	3.76	1.52	0.63	14.6	9.6	1.43	.293	4.39	98	3.80	96	9.08	3.1
24	Brian Holman B. Holman	4.03	1990	SEA	28	11	11	.500	28	121	3	0	0	189.2	188	85	92	17	66	6	0	2	804	8	5.74	3.13	1.83	0.81	15.0	8.2	1.34	.288	4.37	101	3.83	96	8.92	3.5
25	Charlie Hough C. Hough	4.07	1990	TEX	32	12	12	.500	32	114	5	0	0	218.2	190	99	108	24	119	11	0	2	950	4	4.69	4.90	0.96	0.99	12.0	12.5	1.41	.243	4.45	104	4.97	127	7.82	-25.7