lowest era for a pitcher in first 50 starts

50 pitchers didn't start any games in their careers. The first three are Willie MacIver, Jack Perkins and Christian Koss.

Interpreted as:

lowest era for a pitcher in first 50 regular-season starts

	NAME	GS	ERA	G	W	L	W%	SO	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Willie MacIver W. MacIver	0	0.00	2	0	0		0	0	0	0	2.0	4	0	0	0	0	0	2	0	10	0	0.00	0.00		0.00	0.0	0.0	2.00	.400	0.00	0	3.08	75	18.00	0.2
2	Jack Perkins J. Perkins	0	0.00	2	0	0		5	0	0	1	6.1	2	0	0	0	2	0	2	0	22	2	7.11	2.84	2.50	0.00	22.7	9.1	0.63	.133	0.00	0	2.45	60	2.84	1.2
3	Christian Koss C. Koss	0	0.00	1	0	0		0	0	0	0	1.0	1	0	0	0	0	0	1	0	4	0	0.00	0.00		0.00	0.0	0.0	1.00	.250	0.00	0	3.08	80	9.00	0.1
4	Tyler Owens T. Owens	0	0.00	2	0	0		1	0	0	0	2.0	1	0	0	0	0	0	2	0	7	0	4.50	0.00		0.00	14.3	0.0	0.50	.167	0.00	0	2.08	51	4.50	0.4
5	Ian Seymour I. Seymour	0	0.00	1	1	0	1.000	2	0	0	0	2.0	0	0	1	0	2	0	1	1	9	0	9.00	9.00	1.00	0.00	22.2	22.2	1.00	.000	4.50	0	4.08	103	0.00	0
6	Carson Seymour C. Seymour	0	0.00	1	0	0		0	0	0	0	1.0	2	0	0	0	0	0	1	0	5	0	0.00	0.00		0.00	0.0	0.0	2.00	.400	0.00	0	3.08	80	18.00	0.1
7	Sauryn Lao S. Lao	0	0.00	1	0	0		3	0	0	0	1.2	3	0	1	0	0	0	1	0	8	0	16.20	0.00		0.00	37.5	0.0	1.80	.600	5.40	0	-0.52	-13	16.20	0.9
8	Christian Montes De Oca C. Montes De Oca	0	0.00	1	0	0		2	0	0	0	2.2	0	0	0	0	1	0	0	0	9	0	6.75	3.38	2.00	0.00	22.2	11.1	0.38	.000	0.00	0	2.70	69	0.00	0.4
9	Yaramil Hiraldo Y. Hiraldo	0	0.00	1	0	0		1	0	0	0	1.1	1	0	0	0	0	0	1	0	5	0	6.75	0.00		0.00	20.0	0.0	0.75	.250	0.00	0	1.58	39	6.75	0.4
10	Bradgley Rodriguez B. Rodriguez	0	0.00	1	0	0		1	0	0	0	1.2	0	0	0	0	1	1	0	0	6	0	5.40	5.40	1.00	0.00	16.7	16.7	0.60	.000	0.00	0	5.48	137	0.00	-0.3
11	Zac Kristofak Z. Kristofak	0	0.00	1	0	0		2	0	0	0	2.0	3	0	2	0	2	0	1	0	11	0	9.00	9.00	1.00	0.00	18.2	18.2	2.50	.429	9.00	0	4.16	99	13.50	0
12	Luis Vázquez L. Vázquez	0	0.00	2	0	0		0	0	0	0	3.0	3	0	0	0	1	0	2	0	10	0	0.00	3.00	0.00	0.00	0.0	10.0	1.33	.333	0.00	0	4.08	102	9.00	0
13	Adam Kloffenstein A. Kloffenstein	0	0.00	1	0	0		0	0	0	0	1.0	0	0	0	0	0	0	0	0	3	0	0.00	0.00		0.00	0.0	0.0	0.00	.000	0.00	0	3.16	79	0.00	0.1
14	Erik Sabrowski E. Sabrowski	0	0.00	9	0	0		21	0	0	1	13.2	6	0	0	0	4	0	5	0	50	1	13.83	2.63	5.25	0.00	42.0	8.0	0.73	.240	0.00	0	0.96	24	3.95	4.7
15	Evan Kravetz E. Kravetz	0	0.00	1	0	0		0	0	0	0	0.2	0	0	0	0	0	0	0	0	2	0	0.00	0.00		0.00	0.0	0.0	0.00	.000	0.00	0	3.16	73	0.00	0.1
16	Trevor McDonald T. McDonald	0	0.00	1	0	0		1	0	0	0	3.0	0	0	0	0	1	0	1	0	10	0	3.00	3.00	1.00	0.00	10.0	10.0	0.33	.000	0.00	0	3.49	90	0.00	0.1
17	Leo Rivas L. Rivas	0	0.00	3	0	0		0	0	0	0	3.0	5	0	1	0	1	0	3	0	15	0	0.00	3.00	0.00	0.00	0.0	6.7	2.00	.357	3.00	0	4.13	105	15.00	-0.1
18	James Meeker J. Meeker	0	0.00	1	0	0		0	0	0	0	1.0	1	0	0	0	1	0	1	0	4	0	0.00	9.00	0.00	0.00	0.0	25.0	2.00	.333	0.00	0	6.16	150	9.00	-0.2
19	Jose Espada J. Espada	0	0.00	1	0	0		2	0	0	0	1.0	0	0	0	0	2	0	1	0	5	0	18.00	18.00	1.00	0.00	40.0	40.0	2.00	.000	0.00	0	5.25	121	0.00	-0.1
20	Weston Wilson W. Wilson	0	0.00	3	0	0		0	0	0	0	4.0	4	0	0	0	0	0	3	0	16	0	0.00	0.00		0.00	0.0	0.0	1.00	.250	0.00	0	3.10	75	9.00	0.4
21	Grae Kessinger G. Kessinger	0	0.00	1	0	0		0	0	0	0	1.0	0	0	0	0	0	0	1	0	3	0	0.00	0.00		0.00	0.0	0.0	0.00	.000	0.00	0	3.16	78	0.00	0.1
22	Blair Calvo B. Calvo	0	0.00	1	0	0		0	0	0	0	1.0	0	0	0	0	0	0	1	0	3	0	0.00	0.00		0.00	0.0	0.0	0.00	.000	0.00	0	3.25	71	0.00	0.1
23	Hagen Danner H. Danner	0	0.00	1	0	0		0	0	0	0	0.1	0	0	0	0	0	0	0	0	1	0	0.00	0.00		0.00	0.0	0.0	0.00	.000	0.00	0	3.25	76	0.00	0
24	Jacob Amaya J. Amaya	0	0.00	1	0	0		0	0	0	0	1.0	0	0	0	0	0	0	1	0	3	0	0.00	0.00		0.00	0.0	0.0	0.00	.000	0.00	0	3.08	73	0.00	0.1
25	Ricky Karcher R. Karcher	0	0.00	1	0	0		0	0	0	1	1.0	0	0	0	0	1	0	1	0	4	0	0.00	9.00	0.00	0.00	0.0	25.0	1.00	.000	0.00	0	6.25	135	0.00	-0.2