most strikeouts by a pitcher before turning 25

Bert Blyleven has fanned the most career hitters by a pitcher younger than 25, with 1,327 strikeouts.

Interpreted as:

most strikeouts by a pitcher before turning 25 years old

	NAME	SO	G	W	L	W%	GS	ERA	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	H/9
1	Bert Blyleven B. Blyleven	1,327	216	95	85	.528	213	2.78	97	24	0	1611.1	1,416	498	566	114	403	39	2	23	6,534	31	7.41	2.25	3.29	0.64	20.3	6.2	1.13	.280	3.16	7.91
2	Bob Feller B. Feller	1,233	205	107	54	.665	175	3.18	117	16	10	1448.1	1,149	512	569	58	815	26	24		6,187	46	7.66	5.06	1.51	0.36	19.9	13.2	1.36	.269	3.54	7.14
3	Dwight Gooden D. Gooden	1,168	177	100	39	.719	175	2.64	52	19	1	1291.0	1,053	379	423	65	379	18	1	17	5,215	26	8.14	2.64	3.08	0.45	22.4	7.3	1.11	.276	2.95	7.34
4	Walter Johnson W. Johnson	1,156	211	110	81	.576	182	0.08	158	31	6	1614.2	1,256		487	12	360	66	28			74	6.44	2.01	3.21	0.07		5.7	1.00	.261	2.71	7.00
5	Sam McDowell S. McDowell	1,092	183	56	50	.528	148	3.23	41	12	9	1026.1	791	368	411	63	573	25	18	19	4,380	62	9.58	5.02	1.91	0.55	24.9	13.1	1.33	.277	3.60	6.94
6	Felix Hernandez F. Hernandez	1,053	174	72	54	.571	174	3.18	14	4	0	1170.2	1,068	414	471	98	360	35	0	14	4,846	60	8.10	2.77	2.93	0.75	21.7	7.4	1.22	.294	3.62	8.21
7	Fernando Valenzuela F. Valenzuela	1,032	176	78	57	.578	166	2.89	64	23	1	1285.1	1,069	413	485	68	455	9	4	35	5,261	41	7.23	3.19	2.27	0.48	19.6	8.6	1.19	.271	3.40	7.49
8	Frank Tanana F. Tanana	1,010	159	77	54	.588	154	2.72	79	21	0	1212.0	1,034	366	407	105	322	39	3	22	4,927	30	7.50	2.39	3.14	0.78	20.5	6.5	1.12	.269	3.02	7.68
9	Clayton Kershaw C. Kershaw	974	151	61	37	.622	149	2.79	8	5	0	944.0	732	293	315	62	341	17	1	23	3,832	34	9.29	3.25	2.86	0.59	25.4	8.9	1.14	.275	3.00	6.98
10	Larry Dierker L. Dierker	965	205	83	68	.550	191	3.14	66	11	1	1409.0	1,268	491	556	109	386	22	5	29	5,797	64	6.16	2.47	2.50	0.70	16.6	6.7	1.17	.269	3.55	8.10
11	Joe Wood J. Wood	933	193	102	51	.667	141	0.59	111	25	6	1257.2	992		453	9	369	51	45			40	6.68	2.64	2.53	0.06		7.3	1.08	.266	3.24	7.10
12	Don Drysdale D. Drysdale	927	211	73	60	.549	163	3.28	52	15	4	1201.2	1,084	438	486	115	383	67	30	36	5,033	29	6.94	2.87	2.42	0.86	18.4	7.6	1.22	.274	3.64	8.12
13	Denny McLain D. McLain	917	171	90	48	.652	164	3.11	70	17	1	1176.2	933	406	449	151	355	15	2	9	4,737	17	7.01	2.72	2.58	1.15	19.4	7.5	1.09	.237	3.43	7.14
14	Hal Newhouser H. Newhouser	895	231	94	71	.570	173	2.86	94	19	10	1376.1	1,165	438	537	38	673	6	43		5,852	29	5.85	4.40	1.33	0.25	15.3	11.5	1.34	.266	3.51	7.62
15	Catfish Hunter C. Hunter	882	212	73	79	.480	190	3.53	50	13	1	1319.1	1,170	518	574	151	424	24	4	29	5,471	22	6.02	2.89	2.08	1.03	16.1	7.7	1.21	.255	3.92	7.98
16	Dennis Eckersley D. Eckersley	855	171	77	50	.606	155	3.13	60	13	3	1148.1	1,008	399	431	119	352	32	8	33	4,760	17	6.70	2.76	2.43	0.93	18.0	7.4	1.18	.261	3.38	7.90
17	Madison Bumgarner M. Bumgarner	820	141	61	47	.565	138	3.14	3	1	0	880.1	800	307	342	75	222	26	1	23	3,610	14	8.38	2.27	3.69	0.77	22.7	6.1	1.16	.294	3.50	8.18
18	Dave Boswell D. Boswell	820	169	64	47	.577	135	3.28	37	6	0	967.2	743	353	388	94	416	32	5	12	4,017	40	7.63	3.87	1.97	0.87	20.4	10.4	1.20	.244	3.61	6.91
19	Gary Nolan G. Nolan	817	169	76	47	.618	166	2.83	33	12	0	1156.2	981	364	407	89	336	12	1	36	4,720	22	6.36	2.61	2.43	0.69	17.3	7.1	1.14	.257	3.17	7.63
20	Joe Coleman J. Coleman	797	182	63	59	.516	161	3.43	52	10	1	1136.0	1,034	433	487	92	394	38	6	23	4,765	50	6.31	3.12	2.02	0.73	16.7	8.3	1.26	.274	3.86	8.19
21	Scott Kazmir S. Kazmir	783	125	47	37	.560	124	3.61	1	1	0	723.0	656	290	323	72	332	25	0	9	3,108	31	9.75	4.13	2.36	0.90	25.2	10.7	1.37	.308	4.02	8.17
22	Jeremy Bonderman J. Bonderman	768	157	56	62	.475	151	4.78	6	2	0	923.1	967	490	529	109	300	25	0	20	3,977	39	7.49	2.92	2.56	1.06	19.3	7.5	1.37	.309	5.16	9.43
23	Ken Holtzman K. Holtzman	765	161	65	54	.546	154	3.43	45	10	1	1081.0	992	412	470	104	378	20	3	32	4,549	38	6.37	3.15	2.02	0.87	16.8	8.3	1.27	.271	3.91	8.26
24	Don Sutton D. Sutton	757	150	51	60	.459	137	3.28	35	11	2	959.1	863	350	375	68	259	14	8	36	3,951	21	7.10	2.43	2.92	0.64	19.2	6.6	1.17	.279	3.52	8.10
25	Vida Blue V. Blue	743	144	65	37	.637	134	2.85	52	18	1	990.2	760	314	360	83	328	11	1	13	3,980	34	6.75	2.98	2.27	0.75	18.7	8.2	1.10	.240	3.27	6.90