best era as a pitcher with a minimum of 40 innings pitched in may 1977

Frank Tanana had the lowest ERA when pitching at least 40 innings in May 1977, with an ERA of 1.04.

	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	Frank Tanana F. Tanana	1.04	52.0	May 1977	6	4	2	.667	6	50	6	3	0	34	6	6	2	10	0	0	0	192	2	8.65	1.73	5.00	0.35	26.0	5.2	0.85	.246	1.04	5.88
2	Ed Figueroa E. Figueroa	1.40	45.0	May 1977	5	4	1	.800	5	22	5	1	0	27	7	8	2	11	0	0	0	167	0	4.40	2.20	2.00	0.40	13.2	6.6	0.84	.189	1.60	5.40
3	Nolan Ryan N. Ryan	2.18	53.2	May 1977	6	5	1	.833	6	65	5	0	0	28	13	15	3	39	2	0	0	222	5	10.90	6.54	1.67	0.50	29.3	17.6	1.25	.221	2.52	4.70
4	Jim Barr J. Barr	2.33	46.1	May 1977	7	3	3	.500	7	20	1	0	0	50	12	16	1	4	0	0	1	189	1	3.88	0.78	5.00	0.19	10.6	2.1	1.17	.299	3.11	9.71
5	John Candelaria J. Candelaria	2.53	42.2	May 1977	6	4	1	.800	6	25	0	0	0	45	12	13	4	9	1	0	2	179	0	5.27	1.90	2.78	0.84	14.0	5.0	1.27	.293	2.74	9.49
6	Burt Hooton B. Hooton	2.54	46.0	May 1977	6	2	1	.667	6	40	1	0	0	33	13	14	1	16	2	0	2	188	2	7.83	3.13	2.50	0.20	21.3	8.5	1.07	.248	2.74	6.46
7	Steve Rogers S. Rogers	2.56	63.1	May 1977	8	5	3	.625	8	44	5	0	0	57	18	22	2	13	2	0	1	257	3	6.25	1.85	3.38	0.28	17.1	5.1	1.11	.281	3.13	8.10
8	Dave Rozema D. Rozema	2.73	52.2	May 1977	6	3	2	.600	6	22	5	0	0	44	16	17	7	8	4	0	3	210	1	3.76	1.37	2.75	1.20	10.5	3.8	0.99	.219	2.91	7.52
9	Jerry Koosman J. Koosman	2.74	46.0	May 1977	6	2	3	.400	6	40	3	1	0	35	14	16	3	16	1	0	1	190	0	7.83	3.13	2.50	0.59	21.1	8.4	1.11	.246	3.13	6.85
10	Bert Blyleven B. Blyleven	2.76	49.0	May 1977	6	2	4	.333	6	34	3	1	0	40	15	17	3	12	0	0	0	192	3	6.24	2.20	2.83	0.55	17.7	6.3	1.06	.259	3.12	7.35
11	Steve Stone S. Stone	2.84	44.1	May 1977	6	5	0	1.000	6	23	3	0	0	46	14	15	4	12	1	0	0	188	1	4.67	2.44	1.92	0.81	12.2	6.4	1.31	.284	3.05	9.34
12	Jim Slaton J. Slaton	2.89	46.2	May 1977	7	2	4	.333	6	25	1	0	0	40	15	22	5	17	4	1	2	202	0	4.82	3.28	1.47	0.96	12.4	8.4	1.22	.232	4.24	7.71
13	Reggie Cleveland R. Cleveland	2.98	42.1	May 1977	7	2	1	.667	5	25	2	0	0	38	14	18	4	9	3	0	0	177	0	5.31	1.91	2.78	0.85	14.1	5.1	1.11	.250	3.83	8.08
14	J.R. Richard	2.98	54.1	May 1977	7	3	2	.600	7	34	3	0	0	44	18	18	0	22	0	0	1	221	1	5.63	3.64	1.55	0.00	15.4	10.0	1.21	.267	2.98	7.29
15	Steve Carlton S. Carlton	3.06	47.0	May 1977	6	4	1	.800	6	27	3	1	0	37	16	17	4	15	0	0	2	189	0	5.17	2.87	1.80	0.77	14.3	7.9	1.11	.231	3.26	7.09
16	Ross Grimsley R. Grimsley	3.10	52.1	May 1977	7	4	2	.667	7	14	3	0	0	56	18	19	4	16	0	0	1	216	0	2.41	2.75	0.88	0.69	6.5	7.4	1.38	.286	3.27	9.63
17	Jerry Augustine J. Augustine	3.10	61.0	May 1977	7	4	3	.571	7	17	7	0	0	53	21	24	8	15	1	0	1	248	0	2.51	2.21	1.13	1.18	6.9	6.0	1.11	.217	3.54	7.82
18	Mark Lemongello M. Lemongello	3.12	40.1	May 1977	6	1	4	.200	6	14	0	0	0	43	14	15	3	10	0	0	0	163	0	3.12	2.23	1.40	0.67	8.6	6.1	1.31	.294	3.35	9.60
19	Fred Norman F. Norman	3.27	41.1	May 1977	6	3	1	.750	6	26	1	0	0	36	15	19	5	14	1	0	1	169	0	5.66	3.05	1.86	1.09	15.4	8.3	1.21	.252	4.14	7.84
20	Dave Roberts D. Roberts	3.32	40.2	May 1977	6	2	3	.400	6	19	1	0	0	41	15	21	4	12	1	0	1	177	0	4.20	2.66	1.58	0.89	10.7	6.8	1.30	.262	4.65	9.07
21	Rudy May R. May	3.33	48.2	May 1977	7	4	3	.571	7	25	3	1	0	43	18	19	4	25	0	0	1	205	0	4.62	4.62	1.00	0.74	12.2	12.2	1.40	.258	3.51	7.95
22	Gaylord Perry G. Perry	3.38	40.0	May 1977	6	3	2	.600	6	17	3	2	0	37	15	18	4	5	1	0	0	158	0	3.83	1.13	3.40	0.90	10.8	3.2	1.05	.252	4.05	8.33
23	Vida Blue V. Blue	3.43	63.0	May 1977	8	2	4	.333	8	34	3	0	0	67	24	26	2	18	1	0	3	266	2	4.86	2.57	1.89	0.29	12.8	6.8	1.35	.308	3.71	9.57
24	Francisco Barrios F. Barrios	3.51	41.0	May 1977	6	2	3	.400	6	19	0	0	0	49	16	19	2	7	2	0	1	177	0	4.17	1.54	2.71	0.44	10.7	4.0	1.37	.320	4.17	10.76
25	Mike Torrez M. Torrez	3.52	46.0	May 1977	6	3	2	.600	6	21	3	0	0	42	18	20	3	23	1	0	0	199	1	4.11	4.50	0.91	0.59	10.6	11.6	1.41	.258	3.91	8.22