lowest era by a player with 145+ strikeouts in a year

Dutch Leonard has the best ERA with 145+ strikeouts in a season, with an ERA of 0.96 in 1914.

	NAME	ERA	SO	SEASON	TM	G	W	L	W%	GS	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	Dutch Leonard D. Leonard	0.96	176	1914	BSA	36	19	5	.792	25	17	7	3	224.2	139	24	34	3	60	8	8		842	2	7.05	2.40	2.93	0.12	20.9	7.1	0.89	.229	1.36	36	1.95	70	5.57	20.4
2	Jacob deGrom J. deGrom	1.08	146	2021	NYM	15	7	2	.778	15	1	1	0	92.0	40	11	14	6	11	1	0	0	324	0	14.28	1.08	13.27	0.59	45.1	3.4	0.55	.213	1.37	27	1.23	29	3.91	30.6
3	Bob Gibson B. Gibson	1.12	268	1968	STL	34	22	9	.710	34	28	13	0	304.2	198	38	49	11	62	7	0	6	1,161	4	7.92	1.83	4.32	0.32	23.1	5.3	0.85	.230	1.45	38	1.77	63	5.85	34.8
4	Christy Mathewson C. Mathewson	1.14	149	1909	NYG	37	25	6	.806	33	26	8	2	275.1	192	35	57	2	36	0	4		998	4	4.87	1.18	4.14	0.07	14.9	3.6	0.83	.234	1.86	44	1.62	61	6.28	31.7
5	Walter Johnson W. Johnson	1.14	243	1913	WSH	48	36	7	.837	36	29	11	2	346.0	232	44	56	9	38	9	10		1,271	2	6.32	0.99	6.39	0.23	19.1	3.0	0.78	.229	1.46	39	1.90	63	6.03	42.3
6	Grover Alexander G. Alexander	1.22	241	1915	PHN	49	31	10	.756	42	36	12	3	376.1	253	51	86	3	64	10	7		1,435	2	5.76	1.53	3.77	0.07	16.8	4.5	0.84	.224	2.06	43	1.82	63	6.05	44.1
7	Cy Young C. Young	1.26	150	1908	BOS	36	21	11	.656	33	30	3	2	299.0	230	42	68	1	37	1	3		1,116	4	4.52	1.11	4.05	0.03	13.4	3.3	0.89	.247	2.05	52	1.52	67	6.92	25.4
8	Ed Walsh E. Walsh	1.27	258	1910	CWS	45	18	20	.474	36	33	7	5	369.2	242	52	87	5	61	4	7		1,359	6	6.28	1.49	4.23	0.12	19.0	4.5	0.82	.230	2.12	52	1.63	66	5.89	34.8
9	Walter Johnson W. Johnson	1.27	162	1918	WSH	39	23	13	.639	29	29	8	3	326.0	241	46	71	2	70	8	10		1,261	8	4.47	1.93	2.31	0.06	12.8	5.6	0.95	.235	1.96	47	2.04	74	6.65	25.9
10	Christy Mathewson C. Mathewson	1.28	206	1905	NYG	43	31	9	.775	37	32	8	3	338.2	252	48	85	4	64	1	6		1,294	6	5.47	1.70	3.22	0.11	15.9	4.9	0.93	.243	2.26	42	2.03	69	6.70	34.9
11	Jack Coombs J. Coombs	1.30	224	1910	PHA	45	31	9	.775	38	35	13	1	353.0	248	51	74	0	115	7	6		1,353	10	5.71	2.93	1.95	0.00	16.6	8.5	1.03	.246	1.89	53	2.09	83	6.32	15.8
12	Mordecai Brown M. Brown	1.31	172	1909	CHC	50	27	9	.750	34	32	8	7	342.2	246	50	78	1	53	7	15		1,280	9	4.52	1.39	3.25	0.03	13.4	4.1	0.87	.234	2.05	51	1.78	68	6.46	32.4
13	Walter Johnson W. Johnson	1.36	313	1910	WSH	45	25	17	.595	42	38	8	1	370.0	262	56	92	1	76	13	3		1,367	21	7.61	1.85	4.12	0.02	22.9	5.6	0.91	.271	2.24	56	1.39	56	6.37	45.2
14	Old Hoss Radbourn O. Hoss Radbourn	1.38	441	1884	PRO	75	59	12	.831	73	73	11	2	678.2	528	104	216	18	98		2		2,672	34	5.85	1.30	4.50	0.24	16.5	3.7	0.92		2.86	48	2.75	84	7.00	31.9
15	Walter Johnson W. Johnson	1.39	303	1912	WSH	50	33	12	.733	37	34	7	2	369.0	259	57	89	2	76	16	13		1,413	11	7.39	1.85	3.99	0.05	21.4	5.4	0.91	.253	2.17	42	2.03	63	6.32	49.6
16	Ed Walsh E. Walsh	1.42	269	1908	CWS	66	40	15	.727	49	42	11	6	464.0	343	73	111	2	56	9	16		1,755	10	5.22	1.09	4.80	0.04	15.3	3.2	0.86	.240	2.15	63	1.42	67	6.65	34.2
17	Ed Reulbach E. Reulbach	1.42	152	1905	CHC	34	18	14	.563	29	28	5	1	291.2	208	46	71	1	73	18	5		1,124	5	4.69	2.25	2.08	0.03	13.5	6.5	0.96	.235	2.19	48	2.46	85	6.42	14
18	Orval Overall O. Overall	1.42	205	1909	CHC	38	20	11	.645	32	23	9	3	285.0	204	45	66	1	80	8	6		1,116	11	6.47	2.53	2.56	0.03	18.4	7.2	1.00	.247	2.08	55	1.75	67	6.44	27.8
19	Christy Mathewson C. Mathewson	1.43	259	1908	NYG	56	37	11	.771	44	34	11	5	390.2	281	62	85	5	42	3	9		1,469	2	5.97	0.97	6.17	0.12	17.6	2.9	0.83	.238	1.96	61	1.29	52	6.47	52.4
20	Rube Waddell R. Waddell	1.48	287	1905	PHA	46	27	10	.730	34	27	7	0	328.2	231	54	86	5	90	10	11		1,257	10	7.86	2.46	3.19	0.14	22.8	7.2	0.98	.261	2.35	55	1.89	69	6.33	31.2
21	Walter Johnson W. Johnson	1.49	147	1919	WSH	39	20	14	.588	29	27	7	2	290.1	235	48	73	0	51	7	10		1,131	4	4.56	1.58	2.88	0.00	13.0	4.5	0.99	.254	2.26	48	2.07	67	7.28	32.6
22	Jack Pfiester J. Pfiester	1.51	153	1906	CHC	31	20	8	.714	29	20	4	0	250.2	173	42	63	3	63	13	2		966	4	5.49	2.26	2.43	0.11	15.8	6.5	0.94	.232	2.26	57	2.21	80	6.21	15.4
23	Dwight Gooden D. Gooden	1.53	268	1985	NYM	35	24	4	.857	35	16	8	0	276.2	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	44	2.12	59	6.44	45.6
24	Eddie Cicotte E. Cicotte	1.53	150	1917	CWS	49	28	12	.700	35	29	7	4	346.2	246	59	76	2	70	3	11		1,287	1	3.89	1.82	2.14	0.05	11.7	5.4	0.91	.230	1.97	58	2.10	76	6.39	26.2
25	Grover Alexander G. Alexander	1.55	167	1916	PHN	48	33	12	.733	45	38	16	3	389.0	323	67	90	6	50	10	3		1,500	3	3.86	1.16	3.34	0.14	11.1	3.3	0.96	.250	2.08	58	2.12	79	7.47	25.4