lowest era in world series history with a minimum of 20 innings pitched

Madison Bumgarner has the lowest career ERA in the World Series when pitching at least 20 innings, with an ERA of 0.25.

Interpreted as:

lowest era by a player in world series history with a minimum of 20 innings pitched

	NAME	ERA	IP	SERIES	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	Madison Bumgarner M. Bumgarner	0.25	36.0	World Series	5	4	0	1.000	4	31	1	1	1	14	1	1	1	5	2	1	0	124	0	7.75	1.25	6.20	0.25	25.0	4.0	0.53	.153	0.25	3.50
2	Jack Billingham J. Billingham	0.36	25.1	World Series	7	2	0	1.000	3	19	0	0	1	14	1	3	0	9	1	2	1	98	0	6.75	3.20	2.11	0.00	19.4	9.2	0.91	.203	1.07	4.97
3	Harry Brecheen H. Brecheen	0.83	32.2	World Series	7	4	1	.800	3	18	3	1	0	28	3	3	0	12	0	4	3	129	0	4.96	3.31	1.50	0.00	14.0	9.3	1.22	.283	0.83	7.71
4	Claude Osteen C. Osteen	0.86	21.0	World Series	3	1	2	.333	3	7	1	1	0	12	2	3	2	6	0	0	0	77	0	3.00	2.57	1.17	0.86	9.1	7.8	0.86	.161	1.29	5.14
5	Babe Ruth B. Ruth	0.87	31.0	World Series	3	3	0	1.000	3	8	2	1	0	19	3	3	1	10	1	0	0	116	1	2.32	2.90	0.80	0.29	6.9	8.6	0.94	.188	0.87	5.52
6	Sherry Smith S. Smith	0.89	30.1	World Series	3	1	2	.333	3	5	3	0	0	17	3	4	0	9	0	0	1	110	0	1.48	2.67	0.56	0.00	4.5	8.2	0.86	.177	1.19	5.04
7	Sandy Koufax S. Koufax	0.95	57.0	World Series	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
8	Christy Mathewson C. Mathewson	0.97	101.2	World Series	11	5	5	.500	11	48	10	4	0	75	11	22	1	10	1	0	3	391	1	4.25	0.89	4.80	0.09	12.3	2.6	0.84	.224	1.95	6.64
9	Mariano Rivera M. Rivera	0.99	36.1	World Series	24	2	1	.667	0	32	0	0	11	27	4	5	1	8	2	19	1	144	0	7.93	1.98	4.00	0.25	22.2	5.6	0.96	.257	1.24	6.69
10	Hippo Vaughn H. Vaughn	1.00	27.0	World Series	3	1	2	.333	3	17	3	1	0	17	3	3	0	5	1	0	1	97	0	5.67	1.67	3.40	0.00	17.5	5.2	0.81	.230	1.00	5.67
11	Monte Pearson M. Pearson	1.01	35.2	World Series	4	4	0	1.000	4	28	3	1	0	19	4	5	1	7	0	0	0	133	0	7.07	1.77	4.00	0.25	21.1	5.3	0.73	.186	1.26	4.79
12	Josh Beckett J. Beckett	1.16	23.1	World Series	3	2	1	.667	3	28	1	1	0	14	3	3	0	6	1	0	0	88	0	10.80	2.31	4.67	0.00	31.8	6.8	0.86	.264	1.16	5.40
13	Babe Adams B. Adams	1.29	28.0	World Series	4	3	0	1.000	3	11	3	1	0	20	4	5	2	6	1	1	0	111	0	3.54	1.93	1.83	0.64	9.9	5.4	0.93	.198	1.61	6.43
14	Eddie Plank E. Plank	1.32	54.2	World Series	7	2	5	.286	6	32	6	0	0	37	8	11	0	11	4	1	1	215	1	5.27	1.81	2.91	0.00	14.9	5.1	0.88	.220	1.81	6.09
15	Clay Carroll C. Carroll	1.33	20.1	World Series	14	2	1	.667	0	17	0	0	1	15	3	3	1	8	0	6	2	82	0	7.52	3.54	2.13	0.44	20.7	9.8	1.13	.250	1.33	6.64
16	Rollie Fingers R. Fingers	1.35	33.1	World Series	16	2	2	.500	0	25	0	0	6	25	5	9	2	10	3	10	3	135	1	6.75	2.70	2.50	0.54	18.5	7.4	1.05	.242	2.43	6.75
17	Bill Hallahan B. Hallahan	1.36	39.2	World Series	7	3	1	.750	5	27	3	2	1	29	6	6	0	23	1	1	1	172	1	6.13	5.22	1.17	0.00	15.7	13.4	1.31	.240	1.36	6.58
18	Jim Bouton J. Bouton	1.48	24.1	World Series	3	2	1	.667	3	11	1	0	0	19	4	5	0	10	0	0	1	100	2	4.07	3.70	1.10	0.00	11.0	10.0	1.19	.241	1.85	7.03
19	Mike Stanton M. Stanton	1.54	23.1	World Series	20	3	0	1.000	0	20	0	0	1	14	4	4	0	5	0	8	4	84	0	7.71	1.93	4.00	0.00	23.8	6.0	0.81	.237	1.54	5.40
20	Orval Overall O. Overall	1.58	51.1	World Series	8	3	1	.750	5	35	3	1	0	37	9	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
21	George Earnshaw G. Earnshaw	1.58	62.2	World Series	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
22	Spud Chandler S. Chandler	1.62	33.1	World Series	6	2	2	.500	4	16	2	1	1	28	6	8	0	9	0	1	0	133	0	4.32	2.43	1.78	0.00	12.0	6.8	1.11	.259	2.16	7.56
23	Mickey Lolich M. Lolich	1.67	27.0	World Series	3	3	0	1.000	3	21	3	0	0	20	5	5	2	6	1	0	0	104	0	7.00	2.00	3.50	0.67	20.2	5.8	0.96	.243	1.67	6.67
24	Jesse Haines J. Haines	1.67	32.1	World Series	6	3	1	.750	4	12	2	1	0	24	6	9	3	16	0	1	1	133	1	3.34	4.45	0.75	0.84	9.0	12.0	1.24	.206	2.51	6.68
25	Ron Guidry R. Guidry	1.69	32.0	World Series	4	3	1	.750	4	26	2	0	0	20	6	6	4	14	0	0	0	125	0	7.31	3.94	1.86	1.13	20.8	11.2	1.06	.198	1.69	5.63