since 1970, who has the lowest era for a starter in a single season with 150+ ip

Since 1970, Dwight Gooden has the best ERA by a starting pitcher with 150.0+ innings pitched in a season, with an ERA of 1.53 in 1985.

	NAME	ERA	IP	SEASON	TM	G	W	L	W%	GS	SO	CG	SHO	SV	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Dwight Gooden D. Gooden	1.53	276.2	1985	NYM	35	24	4	.857	35	268	16	8	0	198	47	51	13	69	2	0	4	1,065	6	8.72	2.24	3.88	0.42	25.2	6.5	0.97	.259	1.66	6.44
2	Greg Maddux G. Maddux	1.56	202.0	1994	ATL	25	16	6	.727	25	156	10	3	0	150	35	44	4	31	6	0	3	774	3	6.95	1.38	5.03	0.18	20.2	4.0	0.90	.253	1.96	6.68
3	Greg Maddux G. Maddux	1.63	209.2	1995	ATL	28	19	2	.905	28	181	10	3	0	147	38	39	8	23	4	0	3	785	1	7.77	0.99	7.87	0.34	23.1	2.9	0.81	.244	1.67	6.31
4	Zack Greinke Z. Greinke	1.66	222.2	2015	LAD	32	19	3	.864	32	200	1	0	0	148	41	43	14	40	5	0	1	843	7	8.08	1.62	5.00	0.57	23.7	4.7	0.84	.229	1.74	5.98
5	Jacob deGrom J. deGrom	1.70	217.0	2018	NYM	32	10	9	.526	32	269	1	0	0	152	41	48	10	46	5	0	3	835	2	11.16	1.91	5.85	0.41	32.2	5.5	0.91	.281	1.99	6.30
6	Tom Seaver T. Seaver	1.70	285.2	1971	NYM	35	20	9	.690	35	288	21	4	0	207	54	59	17	61	4	0	2	1,098	4	9.07	1.92	4.72	0.54	26.2	5.6	0.94	.261	1.86	6.52
7	Pedro Martinez P. Martinez	1.74	217.0	2000	BOS	29	18	6	.750	29	284	7	4	0	128	42	44	17	32	14	0	0	817	1	11.78	1.33	8.88	0.71	34.8	3.9	0.74	.236	1.82	5.31
8	Ron Guidry R. Guidry	1.74	273.2	1978	NYY	35	25	3	.893	35	248	16	9	0	187	53	61	13	72	1	0	1	1,057	7	8.16	2.37	3.44	0.43	23.5	6.8	0.95	.241	2.01	6.15
9	Justin Verlander J. Verlander	1.75	175.0	2022	HOU	28	18	4	.818	28	185	0	0	0	116	34	43	12	29	6	0	0	666	3	9.51	1.49	6.38	0.62	27.8	4.4	0.83	.240	2.21	5.97
10	Jake Arrieta J. Arrieta	1.77	229.0	2015	CHC	33	22	6	.786	33	236	4	3	0	150	45	52	10	48	6	0	2	870	6	9.28	1.89	4.92	0.39	27.1	5.5	0.86	.246	2.04	5.90
11	Clayton Kershaw C. Kershaw	1.77	198.1	2014	LAD	27	21	3	.875	27	239	6	2	0	139	39	42	9	31	2	0	0	749	7	10.85	1.41	7.71	0.41	31.9	4.1	0.86	.278	1.91	6.31
12	Vida Blue V. Blue	1.82	312.0	1971	OAK	39	24	8	.750	39	301	24	8	0	209	63	73	19	88	4	0	3	1,207	10	8.68	2.54	3.42	0.55	24.9	7.3	0.95	.239	2.11	6.03
13	Clayton Kershaw C. Kershaw	1.83	236.0	2013	LAD	33	16	9	.640	33	232	3	2	0	164	48	55	11	52	3	0	2	908	12	8.85	1.98	4.46	0.42	25.6	5.7	0.92	.251	2.10	6.25
14	Roger Clemens R. Clemens	1.87	211.1	2005	HOU	32	13	8	.619	32	185	1	0	0	151	44	51	11	62	3	0	5	838	3	7.88	2.64	2.98	0.47	22.1	7.4	1.01	.243	2.17	6.43
15	Kevin Brown K. Brown	1.89	233.0	1996	FLA	32	17	11	.607	32	159	5	3	0	187	49	60	8	33	16	0	2	906	6	6.14	1.27	4.82	0.31	17.5	3.6	0.94	.259	2.32	7.22
16	Blake Snell B. Snell	1.89	180.2	2018	TBR	31	21	5	.808	31	221	0	0	0	112	38	41	16	64	1	0	2	700	13	11.01	3.19	3.45	0.80	31.6	9.1	0.97	.241	2.04	5.58
17	Pedro Martinez P. Martinez	1.90	241.1	1997	MON	31	17	8	.680	31	305	13	4	0	158	51	65	16	67	9	0	5	947	3	11.37	2.50	4.55	0.60	32.2	7.1	0.93	.258	2.42	5.89
18	Gaylord Perry G. Perry	1.92	341.2	1972	CLE	40	24	16	.600	40	233	29	5	0	253	73	79	17	82	12	0	16	1,342	11	6.14	2.16	2.84	0.45	17.4	6.1	0.98	.236	2.08	6.66
19	Wilbur Wood W. Wood	1.92	332.0	1971	CWS	42	22	13	.629	42	209	22	7	0	270	71	95	21	61	7	0	2	1,308	6	5.67	1.65	3.43	0.57	16.0	4.7	1.00	.247	2.58	7.32
20	John Tudor J. Tudor	1.93	275.0	1985	STL	36	21	8	.724	36	169	14	10	0	209	59	68	14	49	5	0	4	1,062	4	5.53	1.60	3.45	0.46	15.9	4.6	0.94	.236	2.23	6.84
21	Roger Clemens R. Clemens	1.93	228.1	1990	BOS	31	21	6	.778	31	209	7	4	0	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	7.61
22	Steve Carlton S. Carlton	1.97	346.1	1972	PHI	41	27	10	.730	41	310	30	8	0	257	76	84	17	87	1	0	8	1,351	8	8.06	2.26	3.56	0.44	22.9	6.4	0.99	.256	2.18	6.68
23	Gary Nolan G. Nolan	1.99	176.0	1972	CIN	25	15	5	.750	25	90	6	2	0	147	39	48	13	30	1	0	5	689	5	4.60	1.53	3.00	0.66	13.1	4.4	1.01	.241	2.45	7.52
24	Roger Nelson R. Nelson	2.01	152.1	1972	KCR	19	10	5	.667	19	98	10	6	0	104	34	35	11	25	1	0	1	568	3	5.79	1.48	3.92	0.65	17.3	4.4	0.85	.215	2.07	6.14
25	Roger Clemens R. Clemens	2.05	264.0	1997	TOR	34	21	7	.750	34	292	9	3	0	204	60	65	9	68	12	0	1	1,044	4	9.95	2.32	4.29	0.31	28.0	6.5	1.03	.294	2.22	6.95