best era by a relief pitcher with a minimum of 20 games

7 pitchers were tied for the lowest ERA by a relief pitcher when pitching in 20+ games, with an ERA of 0.00. The first three are Jim Baskette, Fred Olmstead and Jack Powell.

	NAME	ERA	G	W	L	W%	GS	SO	CG	SHO	SV	IP	H	R	HR	BB	HBP	GF	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Jim Baskette J. Baskette	0.00	21	2	2	.500	0	23	0	0	1	56.2	49	20	1	19	1	21	232	3	3.65	3.02	1.21	0.16	9.9	8.2	1.20	.255	3.18	7.78
2	Fred Olmstead F. Olmstead	0.00	29	5	1	.833	0	33	0	0	2	83.1	86	39	1	22	4	19	336	3	3.56	2.38	1.50	0.11	9.8	6.5	1.30	.308	4.21	9.29
3	Jack Powell J. Powell	0.00	20	4	3	.571	0	38	0	0	5	77.1	75	40	2	16	3	18	300	1	4.42	1.86	2.38	0.23	12.7	5.3	1.18	.303	4.66	8.73
4	Ed Karger E. Karger	0.00	26	2	2	.500	0	31	0	0	1	93.2	81	43	2	31	6	22	379	2	2.98	2.98	1.00	0.19	8.2	8.2	1.20	.256	4.13	7.78
5	Bugs Raymond B. Raymond	0.00	35	9	7	.563	0	55	0	0	1	110.1	101	69	0	46	8	24	455	5	4.49	3.75	1.20	0.00	12.1	10.1	1.33	.292	5.63	8.24
6	Bill Foxen B. Foxen	0.00	28	2	4	.333	0	40	0	0	0	72.1	66	43	0	39	5	21	302	8	4.98	4.85	1.03	0.00	13.2	12.9	1.45	.303	5.35	8.21
7	Deacon Phillippe D. Phillippe	0.00	41	9	1	.900	0	36	0	0	4	119.0	108	55	2	15	2	29	470	2	2.72	1.13	2.40	0.15	7.7	3.2	1.03	.255	4.16	8.17
8	Lefty George L. George	0.13	26	3	2	.600	0	23	0	0	0	71.0	70	36	0	25	9	21	291	1	2.92	3.17	0.92	0.00	7.9	8.6	1.34	.299	4.56	8.87
9	George Bell G. Bell	0.13	28	2	5	.286	0	24	0	0	3	67.2	68	37	2	32	2	25	290	2	3.19	4.26	0.75	0.27	8.3	11.0	1.48	.287	4.92	9.04
10	Dolly Gray D. Gray	0.13	28	0	5	.000	0	29	0	0	0	67.1	81	58	1	21	5	23	300	3	3.88	2.81	1.38	0.13	9.7	7.0	1.51	.328	7.75	10.83
11	Cy Morgan C. Morgan	0.15	20	4	4	.500	0	27	0	0	3	58.1	49	29	0	35	3	14	242	5	4.17	5.40	0.77	0.00	11.2	14.5	1.44	.277	4.47	7.56
12	Ed Summers E. Summers	0.19	26	9	3	.750	0	43	0	0	3	95.0	92	41	2	25	4	22	386	3	4.07	2.37	1.72	0.19	11.1	6.5	1.23	.288	3.88	8.72
13	Bill Burns B. Burns	0.21	32	2	7	.222	0	28	0	0	1	84.2	108	66	3	29	6	20	367	2	2.98	3.08	0.97	0.32	7.6	7.9	1.62	.349	7.02	11.48
14	Fred Beebe F. Beebe	0.23	37	3	4	.429	0	47	0	0	6	119.2	99	67	2	56	1	26	495	5	3.53	4.21	0.84	0.15	9.5	11.3	1.30	.249	5.04	7.45
15	Elmer Steele E. Steele	0.25	29	5	2	.714	0	22	0	0	3	107.1	91	38	0	21	6	20	404	0	1.84	1.76	1.05	0.00	5.4	5.2	1.04	.256	3.19	7.63
16	Irv Young I. Young	0.25	37	4	2	.667	0	49	0	0	2	106.0	97	62	2	36	4	21	430	2	4.16	3.06	1.36	0.17	11.4	8.4	1.25	.280	5.26	8.24
17	Big Jeff Pfeffer B. Jeff Pfeffer	0.27	36	4	2	.667	0	29	0	0	2	100.2	116	87	5	59	2	30	447	1	2.59	5.27	0.49	0.45	6.5	13.2	1.74	.315	7.78	10.37
18	Al Mattern A. Mattern	0.32	45	6	7	.462	0	44	0	0	4	142.0	155	95	3	49	3	38	578	4	2.79	3.11	0.90	0.19	7.6	8.5	1.44	.317	6.02	9.82
19	Harry Krause H. Krause	0.39	28	5	4	.556	0	45	0	0	2	92.0	77	34	0	24	4	15	353	1	4.40	2.35	1.88	0.00	12.7	6.8	1.10	.275	3.33	7.53
20	Harry Gaspar H. Gaspar	0.42	45	6	6	.500	0	24	0	0	11	108.0	102	46	0	27	9	38	438	3	2.00	2.25	0.89	0.00	5.5	6.2	1.19	.270	3.83	8.50
21	Larry Pape L. Pape	0.42	27	2	0	1.000	0	28	0	0	3	106.0	113	53	0	37	4	18	434	4	2.38	3.14	0.76	0.00	6.5	8.5	1.42	.310	4.50	9.59
22	Ralph Works R. Works	0.43	51	6	2	.750	0	79	0	0	4	145.0	149	93	1	66	8	42	631	9	4.90	4.10	1.20	0.06	12.5	10.5	1.48	.310	5.77	9.25
23	Cecil Ferguson C. Ferguson	0.47	38	4	6	.400	0	42	0	0	1	96.0	95	50	3	46	3	33	390	5	3.94	4.31	0.91	0.28	10.8	11.8	1.47	.311	4.69	8.91
24	Barney Pelty B. Pelty	0.53	32	3	7	.300	0	29	0	0	0	85.0	99	66	2	37	7	24	378	4	3.07	3.92	0.78	0.21	7.7	9.8	1.60	.320	6.99	10.48
25	Harry McIntire H. McIntire	0.65	30	6	4	.600	0	33	0	0	3	97.2	102	60	3	29	5	23	399	1	3.04	2.67	1.14	0.28	8.3	7.3	1.34	.301	5.53	9.40