which pitcher had the lowest era in a month since 1985, minimum of 35 innings pitched

Since 1985, Orel Hershiser and Dwight Gooden are tied for the best ERA when pitching at least 35 innings in a month, with an ERA of 0.00.

	NAME	ERA	IP	MONTH	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	Orel Hershiser O. Hershiser	0.00	55.0	September 1988	6	5	0	1.000	6	34	5	5	0	30	0	0	0	9	0	0	3	201	1	5.56	1.47	3.78	0.00	16.9	4.5	0.71	.190	0.00	4.91
2	Dwight Gooden D. Gooden	0.00	44.0	September 1985	5	3	0	1.000	5	39	2	2	0	24	0	1	0	9	0	0	1	164	0	7.98	1.84	4.33	0.00	23.8	5.5	0.75	.207	0.20	4.91
3	Cory Lidle C. Lidle	0.20	45.1	August 2002	6	5	0	1.000	6	29	1	1	0	23	1	2	0	8	0	0	0	163	0	5.76	1.59	3.63	0.00	17.8	4.9	0.68	.183	0.40	4.57
4	Mike Witt M. Witt	0.21	43.0	August 1986	5	5	0	1.000	5	28	3	1	0	17	1	4	1	8	0	0	0	155	0	5.86	1.67	3.50	0.21	18.1	5.2	0.58	.136	0.84	3.56
5	Cliff Lee C. Lee	0.21	42.0	June 2011	5	5	0	1.000	5	29	3	3	0	21	1	1	0	8	0	0	0	147	0	6.21	1.71	3.63	0.00	19.7	5.4	0.69	.191	0.21	4.50
6	Fernando Valenzuela F. Valenzuela	0.21	42.0	April 1985	5	2	3	.400	5	35	4	2	0	22	1	5	1	9	1	0	0	157	1	7.50	1.93	3.89	0.21	22.3	5.7	0.74	.189	1.07	4.71
7	Jake Arrieta J. Arrieta	0.43	42.1	August 2015	6	6	0	1.000	6	43	1	1	0	19	2	4	0	10	2	0	0	159	2	9.14	2.13	4.30	0.00	27.0	6.3	0.69	.183	0.85	4.04
8	Jake Arrieta J. Arrieta	0.45	40.0	September 2015	5	4	0	1.000	5	39	1	1	0	20	2	3	1	4	1	0	0	140	1	8.78	0.90	9.75	0.23	27.9	2.9	0.60	.200	0.68	4.50
9	Johan Santana J. Santana	0.45	40.0	September 2004	6	5	0	1.000	6	52	0	0	0	20	2	2	0	7	2	0	0	146	1	11.70	1.58	7.43	0.00	35.6	4.8	0.68	.235	0.45	4.50
10	Cliff Lee C. Lee	0.45	39.2	August 2011	5	5	0	1.000	5	39	1	1	0	23	2	2	1	8	2	0	0	146	0	8.85	1.82	4.88	0.23	26.7	5.5	0.78	.229	0.45	5.22
11	Andy Benes A. Benes	0.47	38.1	September 1998	5	3	0	1.000	5	34	0	0	0	17	2	2	0	10	0	0	0	138	0	7.98	2.35	3.40	0.00	24.6	7.2	0.70	.181	0.47	3.99
12	Jon Lester J. Lester	0.48	37.2	September 2016	5	5	0	1.000	5	31	1	0	0	22	2	2	1	4	1	0	0	135	0	7.41	0.96	7.75	0.24	23.0	3.0	0.69	.214	0.48	5.26
13	Zack Greinke Z. Greinke	0.50	36.0	April 2009	5	5	0	1.000	5	44	2	1	0	24	2	3	0	8	1	0	0	138	1	11.00	2.00	5.50	0.00	31.9	5.8	0.89	.282	0.75	6.00
14	Rick Honeycutt R. Honeycutt	0.50	36.0	June 1986	5	2	1	.667	5	19	0	0	0	25	2	3	0	4	1	0	2	132	1	4.75	1.00	4.75	0.00	14.4	3.0	0.81	.231	0.75	6.25
15	Mark Langston M. Langston	0.50	53.2	September 1988	6	5	1	.833	6	46	4	3	0	23	3	3	1	24	0	0	0	199	0	7.71	4.02	1.92	0.17	23.1	12.1	0.88	.172	0.50	3.86
16	Kris Medlen K. Medlen	0.50	35.2	August 2012	5	4	0	1.000	5	35	1	1	0	27	2	2	0	4	0	0	0	131	1	8.83	1.01	8.75	0.00	26.7	3.1	0.87	.293	0.50	6.81
17	Jacob deGrom J. deGrom	0.51	35.0	April 2021	5	2	2	.500	5	59	1	1	0	16	2	5	2	4	0	0	0	123	0	15.17	1.03	14.75	0.51	48.0	3.3	0.57	.241	1.29	4.11
18	Jack Morris J. Morris	0.54	50.0	July 1986	6	5	1	.833	6	47	4	3	0	33	3	4	1	8	0	0	1	186	3	8.46	1.44	5.88	0.18	25.3	4.3	0.82	.246	0.72	5.94
19	Javier Vazquez J. Vazquez	0.55	49.0	August 2001	6	5	1	.833	6	45	2	1	0	26	3	4	2	8	0	0	1	175	1	8.27	1.47	5.63	0.37	25.7	4.6	0.69	.200	0.73	4.78
20	Hyun Jin Ryu H. Jin Ryu	0.59	45.2	May 2019	6	5	0	1.000	6	36	1	1	0	28	3	3	0	3	0	0	0	163	0	7.09	0.59	12.00	0.00	22.1	1.8	0.68	.226	0.59	5.52
21	Martín Pérez M. Pérez	0.64	42.1	May 2022	6	4	0	1.000	6	33	1	1	0	29	3	6	0	9	0	0	0	159	2	7.02	1.91	3.67	0.00	20.8	5.7	0.90	.248	1.28	6.17
22	Pedro Martinez P. Martinez	0.64	42.1	July 2002	6	5	0	1.000	6	59	0	0	0	22	3	5	0	9	6	0	0	159	1	12.54	1.91	6.56	0.00	37.1	5.7	0.73	.259	1.06	4.68
23	Kenny Rogers K. Rogers	0.65	41.1	May 1995	6	5	1	.833	6	32	1	1	0	32	3	6	1	15	1	0	0	169	2	6.97	3.27	2.13	0.22	18.9	8.9	1.14	.258	1.31	6.97
24	Randy Johnson R. Johnson	0.66	41.0	September 2002	5	5	0	1.000	5	49	3	1	0	24	3	5	3	7	2	0	0	156	0	10.76	1.54	7.00	0.66	31.4	4.5	0.76	.221	1.10	5.27
25	Zane Smith Z. Smith	0.66	41.0	September 1990	5	3	1	.750	5	30	3	2	0	26	3	9	1	4	0	0	1	147	0	6.59	0.88	7.50	0.22	20.4	2.7	0.73	.223	1.98	5.71