Sam McDowell has struck out the most career batters by a pitcher younger than 28, with 1,956 strikeouts.

	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	Sam McDowell S. McDowell	1,956	299	109	90	.548	262	2.91	88	20	10	1882.0	1,429	609	704	113	910	49	21	47	7,887	100	9.35	4.35	2.15	0.54	24.8	11.5	1.24	.271	3.37	6.83
2	Bert Blyleven B. Blyleven	1,910	316	136	123	.525	313	2.81	141	39	0	2387.1	2,097	746	847	165	619	64	2	35	9,705	52	7.20	2.33	3.09	0.62	19.7	6.4	1.14	.278	3.19	7.91
3	Walter Johnson W. Johnson	1,828	357	201	119	.628	297	0.63	255	58	13	2669.1	2,034		714	25	530	104	56			97	6.16	1.79	3.45	0.08		5.1	0.96	.254	2.41	6.86
4	Clayton Kershaw C. Kershaw	1,746	244	114	56	.671	242	2.43	21	12	0	1611.0	1,198	435	474	97	466	27	1	26	6,379	62	9.75	2.60	3.75	0.54	27.4	7.3	1.03	.272	2.65	6.69
5	Felix Hernandez F. Hernandez	1,722	271	112	86	.566	271	3.19	23	9	0	1839.0	1,679	651	726	147	528	58	0	15	7,570	101	8.43	2.58	3.26	0.72	22.7	7.0	1.20	.300	3.55	8.22
6	Dwight Gooden D. Gooden	1,686	269	142	66	.683	267	2.99	60	21	1	1919.2	1,664	638	702	98	575	31	1	29	7,850	40	7.90	2.70	2.93	0.46	21.5	7.3	1.17	.287	3.29	7.80
7	Bob Feller B. Feller	1,640	262	138	72	.657	226	2.96	160	27	14	1891.2	1,476	622	691	70	1,003	31	29		7,999	50	7.80	4.77	1.64	0.33	20.5	12.5	1.31	.268	3.29	7.02
8	Don Drysdale D. Drysdale	1,638	337	135	99	.577	286	3.04	106	25	5	2137.2	1,894	721	823	187	584	100	33	71	8,815	50	6.90	2.46	2.80	0.79	18.6	6.6	1.16	.271	3.46	7.97
9	Nolan Ryan N. Ryan	1,572	227	91	86	.514	193	3.01	85	18	3	1452.2	994	486	550	84	865	50	13	23	6,128	65	9.74	5.36	1.82	0.52	25.7	14.1	1.28	.256	3.41	6.16
10	Pedro Martinez P. Martinez	1,534	249	107	50	.682	182	2.83	28	11	3	1359.1	1,050	428	476	107	410	55	23	20	5,477	38	10.16	2.71	3.74	0.71	28.0	7.5	1.07	.280	3.15	6.95
11	Fernando Valenzuela F. Valenzuela	1,528	267	118	90	.567	256	3.16	99	27	2	1948.0	1,691	685	780	122	740	14	5	48	8,105	75	7.06	3.42	2.06	0.56	18.9	9.1	1.25	.275	3.60	7.81
12	Hal Newhouser H. Newhouser	1,475	347	156	110	.586	278	2.78	165	28	14	2231.1	1,909	689	835	68	978	10	53		9,412	55	5.95	3.94	1.51	0.27	15.7	10.4	1.29	.268	3.37	7.70
13	Sandy Koufax S. Koufax	1,474	284	93	65	.589	204	3.32	68	20	6	1442.2	1,143	532	593	146	616	13	41	35	6,056	60	9.20	3.84	2.39	0.91	24.3	10.2	1.22	.262	3.70	7.13
14	Madison Bumgarner M. Bumgarner	1,430	225	101	71	.587	222	2.99	15	6	0	1450.0	1,258	481	529	137	331	45	1	26	5,876	19	8.88	2.05	4.32	0.85	24.3	5.6	1.10	.285	3.28	7.81
15	Tom Seaver T. Seaver	1,404	215	116	66	.637	210	2.43	103	21	1	1641.1	1,305	444	489	120	429	33	5	32	6,542	39	7.70	2.35	3.27	0.66	21.5	6.6	1.06	.260	2.68	7.16
16	Joe Coleman J. Coleman	1,398	303	119	100	.543	281	3.48	85	17	1	1990.0	1,805	770	871	177	755	69	6	45	8,391	78	6.32	3.41	1.85	0.80	16.7	9.0	1.29	.272	3.94	8.16
17	Catfish Hunter C. Hunter	1,378	323	137	101	.576	300	3.22	93	25	1	2145.0	1,817	767	852	236	641	32	5	43	8,771	29	5.78	2.69	2.15	0.99	15.7	7.3	1.15	.244	3.57	7.62
18	Roger Clemens R. Clemens	1,365	198	109	50	.686	197	2.96	62	23	0	1452.1	1,229	478	525	102	412	39	0	18	5,921	38	8.46	2.55	3.31	0.63	23.1	7.0	1.13	.282	3.25	7.62
19	Don Sutton D. Sutton	1,359	259	102	94	.520	245	3.10	75	28	3	1757.2	1,531	606	665	129	455	33	9	49	7,180	44	6.96	2.33	2.99	0.66	18.9	6.3	1.13	.269	3.41	7.84
20	Jim Maloney J. Maloney	1,342	227	110	68	.618	203	3.06	61	23	3	1459.2	1,177	496	542	104	620	30	10	27	6,074	95	8.27	3.82	2.16	0.64	22.1	10.2	1.23	.270	3.34	7.26
21	Jake Peavy J. Peavy	1,340	210	91	67	.576	210	3.27	7	3	0	1334.2	1,148	485	515	135	431	45	0	31	5,514	26	9.04	2.91	3.11	0.91	24.3	7.8	1.18	.284	3.47	7.74
22	Dean Chance D. Chance	1,326	314	113	97	.538	251	2.76	81	32	18	1843.1	1,547	566	680	94	607	51	38	57	7,575	54	6.47	2.96	2.18	0.46	17.5	8.0	1.17	.264	3.32	7.55
23	CC Sabathia	1,289	240	109	71	.606	240	3.80	21	7	0	1552.2	1,452	655	706	145	504	48	0	15	6,474	30	7.47	2.92	2.56	0.84	19.9	7.8	1.26	.291	4.09	8.42
24	Matt Cain M. Cain	1,276	235	85	78	.521	234	3.27	15	6	0	1531.2	1,275	557	594	128	523	43	1	30	6,310	58	7.50	3.07	2.44	0.75	20.2	8.3	1.17	.264	3.49	7.49
25	Frank Tanana F. Tanana	1,274	237	105	82	.561	230	3.13	94	25	0	1688.0	1,536	587	649	153	445	58	4	27	6,950	41	6.79	2.37	2.86	0.82	18.3	6.4	1.17	.275	3.46	8.19