mlb starting pitchers with the lowest career era before turning 25, minimum 50 starts

Irv Young and Big Jeff Pfeffer are tied for the best career ERA by a starting pitcher when starting 50+ games, with an ERA of 0.00.

	NAME	ERA	GS	G	W	L	W%	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	Irv Young I. Young	0.00	161	161	57	91	.385	501	120	21	0	1240.1	1,224	546	20	272	33	0	4,982	17	3.64	1.97	1.84	0.15	10.1	5.5	1.21	.290	3.96	8.88
2	Big Jeff Pfeffer B. Jeff Pfeffer	0.00	70	70	27	37	.422	278	59	6	0	565.0	516	251	8	229	26	0	2,320	8	4.43	3.65	1.21	0.13	12.0	9.9	1.32	.286	4.00	8.22
3	Jack Pfiester J. Pfiester	0.02	128	128	66	42	.611	475	76	17	0	975.0	795	332	6	261	32	0	3,920	13	4.38	2.41	1.82	0.06	12.1	6.7	1.08	.251	3.06	7.34
4	Ed Karger E. Karger	0.03	123	123	44	58	.431	352	82	9	0	922.2	850	383	9	263	27	0	3,789	22	3.43	2.57	1.34	0.09	9.3	6.9	1.21	.268	3.74	8.29
5	Ed Summers E. Summers	0.05	112	112	59	42	.584	325	79	9	0	904.0	848	358	17	195	43	0	3,699	12	3.24	1.94	1.67	0.17	8.8	5.3	1.15	.266	3.56	8.44
6	Chappie McFarland C. McFarland	0.08	96	96	34	57	.374	300	81	6	0	796.1	843	444	15	186	18	0	3,334	17	3.39	2.10	1.61	0.17	9.0	5.6	1.29	.294	5.02	9.53
7	George Bell G. Bell	0.09	124	124	40	72	.357	342	91	17	0	985.0	915	420	13	266	16	0	3,976	10	3.12	2.43	1.29	0.12	8.6	6.7	1.20	.270	3.84	8.36
8	Elmer Stricklett E. Stricklett	0.10	90	90	34	49	.410	223	78	10	0	721.2	709	344	3	206	28	0		11	2.78	2.57	1.08	0.04		7.0	1.27	.284	4.29	8.84
9	Bugs Raymond B. Raymond	0.12	95	95	36	50	.419	334	57	9	0	702.0	606	281	16	228	26	0		17	4.28	2.92	1.46	0.21		8.0	1.19	.261	3.60	7.77
10	Harry McIntire H. McIntire	0.14	188	188	63	110	.364	562	140	17	0	1475.0	1,379	678	30	485	87	0	6,135	13	3.43	2.96	1.16	0.18	9.2	7.9	1.26	.271	4.14	8.41
11	Dolly Gray D. Gray	0.14	70	70	15	46	.246	191	46	3	0	509.1	502	261	7	160	17	0	2,120	21	3.38	2.83	1.19	0.12	9.0	7.5	1.30	.284	4.61	8.87
12	Bob Ewing B. Ewing	0.15	264	264	118	112	.513	962	205	19	0	2170.1	1,998	881	28	591	51	0		44	3.99	2.45	1.63	0.12		6.7	1.19	.277	3.65	8.29
13	Orval Overall O. Overall	0.17	183	183	101	66	.605	882	133	31	0	1426.2	1,149	478	16	504	40	0	5,736	53	5.56	3.18	1.75	0.10	15.4	8.8	1.16	.264	3.02	7.25
14	Dixie Walker D. Walker	0.18	62	62	23	29	.442	197	40	5	0	447.2	456	222	6	125	21	0	1,883	9	3.96	2.51	1.58	0.12	10.5	6.6	1.30	.293	4.46	9.17
15	Fred Beebe F. Beebe	0.19	153	153	56	78	.418	562	92	9	0	1125.0	982	508	15	458	41	0	4,687	46	4.50	3.66	1.23	0.12	12.0	9.8	1.28	.268	4.06	7.86
16	Al Mattern A. Mattern	0.24	94	94	30	51	.370	224	53	9	0	699.1	723	351	19	244	7	0	2,960	13	2.88	3.14	0.92	0.24	7.6	8.2	1.38	.285	4.52	9.30
17	Jack Sutthoff J. Sutthoff	0.26	65	65	29	33	.468	161	54	4	0	529.1	531	271	7	222	31	0	2,269	9	2.74	3.77	0.73	0.12	7.1	9.8	1.42	.284	4.61	9.03
18	Carl Lundgren C. Lundgren	0.26	149	149	85	55	.607	503	125	19	0	1207.1	1,028	436	14	445	31	0		23	3.75	3.32	1.13	0.10		9.1	1.22	.259	3.25	7.66
19	Gus Dorner G. Dorner	0.30	105	105	31	65	.323	240	75	8	0	816.2	770	417	15	295	46	0		15	2.64	3.25	0.81	0.17		8.8	1.30	.275	4.60	8.49
20	Bill Burns B. Burns	0.30	85	85	28	45	.384	208	46	10	0	629.1	597	263	10	118	32	0	2,521	9	2.97	1.69	1.76	0.14	8.3	4.7	1.14	.273	3.76	8.54
21	Hooks Wiltse H. Wiltse	0.31	225	225	121	76	.614	800	151	27	0	1754.0	1,560	635	46	411	33	0		32	4.10	2.11	1.95	0.24		5.9	1.12	.265	3.26	8.00
22	Joe Lake J. Lake	0.32	139	139	47	81	.367	473	95	8	0	1075.2	1,080	522	12	278	17	0	4,547	25	3.96	2.33	1.70	0.10	10.4	6.1	1.26	.284	4.37	9.04
23	Harry Gaspar H. Gaspar	0.33	98	98	40	42	.488	206	47	11	0	712.0	690	292	15	187	30	0	2,907	4	2.60	2.36	1.10	0.19	7.1	6.4	1.23	.273	3.69	8.72
24	Cy Morgan C. Morgan	0.33	172	172	73	73	.500	616	107	15	0	1306.0	1,040	492	15	512	88	0		45	4.25	3.53	1.20	0.10		10.0	1.19	.263	3.39	7.17
25	Ed Walsh E. Walsh	0.35	315	315	173	113	.605	1,506	250	57	0	2617.1	2,071	751	20	553	50	0		65	5.18	1.90	2.72	0.07		5.6	1.00	.267	2.58	7.12