lowest postseason era in mlb history with a minimum 40 innings pitched

Mariano Rivera has the lowest career ERA in the postseason when pitching at least 40 innings, with an ERA of 0.70.

Interpreted as:

lowest postseason era by a player in MLB history with a minimum 40 innings pitched

	NAME	ERA	IP	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	Mariano Rivera M. Rivera	0.70	141.0	96	8	1	.889	0	110	0	0	42	86	11	13	2	21	3	78	4	527	3	7.02	1.34	5.24	0.13	20.9	4.0	0.76	.215	0.83	5.49
2	Sandy Koufax S. Koufax	0.95	57.0	8	4	3	.571	7	61	4	2	0	36	6	10	2	11	0	0	1	213	0	9.63	1.74	5.55	0.32	28.6	5.2	0.82	.245	1.58	5.68
3	Christy Mathewson C. Mathewson	1.06	101.2	11	5	5	.500	11	48	10	4	0	76	12	22	1	10	1	0	3	391	1	4.25	0.89	4.80	0.09	12.3	2.6	0.85	.227	1.95	6.73
4	Eddie Plank E. Plank	1.32	54.2	7	2	5	.286	6	32	6	0	0	36	8	11	0	11	4	1	1	215	1	5.27	1.81	2.91	0.00	14.9	5.1	0.86	.214	1.81	5.93
5	Stephen Strasburg S. Strasburg	1.46	55.1	9	6	2	.750	8	71	0	0	0	44	9	13	4	8	1	0	1	218	1	11.55	1.30	8.88	0.65	32.6	3.7	0.94	.299	2.11	7.16
6	Ranger Suárez R. Suárez	1.48	42.2	11	4	1	.800	8	44	0	0	1	32	7	8	3	13	1	1	0	173	0	9.28	2.74	3.38	0.63	25.4	7.5	1.05	.259	1.69	6.75
7	Mickey Lolich M. Lolich	1.57	46.0	5	3	1	.750	5	31	3	0	0	34	8	9	3	11	1	0	0	180	0	6.07	2.15	2.82	0.59	17.2	6.1	0.98	.231	1.76	6.65
8	George Earnshaw G. Earnshaw	1.58	62.2	8	4	3	.571	8	56	5	1	0	39	11	14	2	17	0	0	1	245	1	8.04	2.44	3.29	0.29	22.9	6.9	0.89	.218	2.01	5.60
9	Scott McGregor S. McGregor	1.63	49.2	6	3	3	.500	6	26	3	2	0	37	9	10	3	8	0	0	2	189	0	4.71	1.45	3.25	0.54	13.8	4.2	0.91	.224	1.81	6.70
10	Stan Coveleski S. Coveleski	1.74	41.1	5	3	2	.600	5	11	4	1	0	31	8	9	2	7	0	0	0	162	0	2.40	1.52	1.57	0.44	6.8	4.3	0.92	.204	1.96	6.75
11	Lefty Grove L. Grove	1.75	51.1	8	4	2	.667	5	36	4	0	2	46	10	12	0	6	0	3	0	205	0	6.31	1.05	6.00	0.00	17.6	2.9	1.01	.282	2.10	8.06
12	Orval Overall O. Overall	1.75	51.1	8	3	1	.750	5	35	3	1	0	37	10	11	0	15	1	2	0	203	2	6.14	2.63	2.33	0.00	17.2	7.4	1.01	.243	1.93	6.49
13	Carl Hubbell C. Hubbell	1.79	50.1	6	4	2	.667	6	32	4	0	0	40	10	18	3	12	1	0	2	204	1	5.72	2.15	2.67	0.54	15.7	5.9	1.03	.237	3.22	7.15
14	Wade Davis W. Davis	1.80	40.0	30	4	0	1.000	1	57	0	0	8	29	8	9	5	18	0	14	0	160	2	12.83	4.05	3.17	1.13	35.6	11.3	1.18	.300	2.03	6.53
15	Waite Hoyt W. Hoyt	1.83	83.2	12	6	4	.600	11	49	6	1	0	81	17	28	2	22	1	1	0	345	0	5.27	2.37	2.23	0.22	14.2	6.4	1.23	.292	3.01	8.71
16	George Mullin G. Mullin	1.86	58.0	7	3	3	.500	6	36	6	1	0	46	12	22	1	15	3	1	0	236	0	5.59	2.33	2.40	0.16	15.3	6.4	1.05	.249	3.41	7.14
17	Bob Gibson B. Gibson	1.89	81.0	9	7	2	.778	9	92	8	2	0	55	17	19	6	17	2	0	3	312	2	10.22	1.89	5.41	0.67	29.5	5.4	0.89	.251	2.11	6.11
18	Jack Billingham J. Billingham	1.93	42.0	10	2	1	.667	6	32	0	0	1	28	9	11	0	15	2	2	1	169	0	6.86	3.21	2.13	0.00	18.9	8.9	1.02	.233	2.36	6.00
19	Herb Pennock H. Pennock	1.95	55.1	10	5	0	1.000	5	24	4	0	3	39	12	12	3	8	0	5	0	210	0	3.90	1.30	3.00	0.49	11.4	3.8	0.85	.206	1.95	6.34
20	Fernando Valenzuela F. Valenzuela	1.98	63.2	9	5	1	.833	8	44	2	0	0	47	14	14	3	31	0	0	7	259	3	6.22	4.38	1.42	0.42	17.0	12.0	1.23	.243	1.98	6.64
21	Doug Drabek D. Drabek	2.05	48.1	7	2	5	.286	7	33	2	0	0	40	11	16	1	14	1	0	3	198	1	6.14	2.61	2.36	0.19	16.7	7.1	1.12	.262	2.98	7.45
22	Mike Stanton M. Stanton	2.10	55.2	53	5	2	.714	0	47	0	0	1	43	13	15	1	21	0	15	9	222	2	7.60	3.40	2.24	0.16	21.2	9.5	1.15	.275	2.43	6.95
23	Matt Cain M. Cain	2.10	51.1	8	4	2	.667	8	33	0	0	0	40	12	13	6	14	6	0	2	210	1	5.79	2.45	2.36	1.05	15.7	6.7	1.05	.225	2.28	7.01
24	Madison Bumgarner M. Bumgarner	2.11	102.1	16	8	3	.727	14	87	3	3	1	74	24	25	8	18	5	1	2	398	0	7.65	1.58	4.83	0.70	21.9	4.5	0.90	.236	2.20	6.51
25	Walter Johnson W. Johnson	2.16	50.0	6	3	3	.500	5	35	5	1	0	56	12	20	4	15	3	1	3	212	1	6.30	2.70	2.33	0.72	16.5	7.1	1.42	.335	3.60	10.08