youngest pitcher with 210+ strikeouts in a season

Larry McKeon is the youngest with 210+ strikeouts in a season. He was 18 years old in his rookie season in 1884.

	NAME	AGE	SO	SEASON	TM	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	ERA-	FIP	FIP-	H/9	PRAA
1	Larry McKeon L. McKeon	18	308	1884	IND	61	18	41	.305	60	3.50	59	2	0	512.0	488	199	350	20	94	18	1		2,185	36	5.41	1.65	3.28	0.35	14.1	4.3	1.14	.268	6.15	108	3.24	101	8.58	-1.7
2	Dwight Gooden D. Gooden	19	276	1984	NYM	31	17	9	.654	31	2.60	7	3	0	218.0	161	63	72	7	73	2	0	2	879	3	11.39	3.01	3.78	0.29	31.4	8.3	1.07	.296	2.97	74	1.68	48	6.65	44.6
3	Bob Feller B. Feller	19	240	1938	CLE	39	17	11	.607	36	4.08	20	2	1	277.2	225	126	136	13	208	7	3		1,248	5	7.78	6.74	1.15	0.42	19.2	16.7	1.56	.272	4.41	86	4.13	91	7.29	13
4	Amos Rusie A. Rusie	19	341	1890	NYN	67	29	34	.460	62	2.56	56	4	1	548.2	436	156	300	3	289	26	5		2,379	36	5.59	4.74	1.18	0.05	14.3	12.1	1.32	.252	4.92	73	3.47	92	7.15	17.7
5	Egyptian Healy E. Healy	19	213	1886	SLN	43	17	23	.425	41	2.88	39	3	0	353.2	315	113	213	5	118		2		1,487	40	5.42	3.00	1.81	0.13	14.3	7.9	1.22		5.42	90	3.08	96	8.02	2.4
6	Adonis Terry A. Terry	19	230	1884	BKN	56	19	35	.352	55	3.55	54	2	0	476.0	486	188	308	10	72	8	1		2,049	33	4.35	1.36	3.19	0.19	11.2	3.5	1.17	.275	5.82	110	3.09	96	9.19	6.4
7	John Ward J. Ward	19	239	1879	PRO	70	47	19	.712	60	2.15	58	2	1	587.0	571	140	270	5	36		10		2,425	29	3.66	0.55	6.64	0.08	9.9	1.5	1.03		4.14	89	2.22	92	8.75	7.9
8	Dwight Gooden D. Gooden	20	268	1985	NYM	35	24	4	.857	35	1.53	16	8	0	276.2	198	47	51	13	69	2	0	4	1,065	6	8.72	2.24	3.88	0.42	25.2	6.5	0.97	.259	1.66	44	2.12	59	6.44	45.6
9	Bert Blyleven B. Blyleven	20	224	1971	MIN	38	16	15	.516	38	2.81	17	5	0	278.1	267	87	95	21	59	5	0	1	1,126	5	7.24	1.91	3.80	0.68	19.9	5.2	1.17	.301	3.07	80	2.51	69	8.63	34.2
10	Bob Feller B. Feller	20	246	1939	CLE	39	24	9	.727	35	2.85	24	4	1	296.2	227	94	105	13	142	3	3		1,243	14	7.46	4.31	1.73	0.39	19.8	11.4	1.24	.255	3.19	64	3.35	78	6.89	32.4
11	Christy Mathewson C. Mathewson	20	221	1901	NYG	40	20	17	.541	38	2.41	36	5	0	336.0	288	90	131	3	97	13	2		1,361	23	5.92	2.60	2.28	0.08	16.2	7.1	1.15	.278	3.51	73	2.71	83	7.71	20.8
12	Amos Rusie A. Rusie	20	337	1891	NYG	61	33	20	.623	57	2.55	52	6	1	500.1	391	142	244	6	262	18	4		2,167	17	6.06	4.71	1.29	0.11	15.6	12.1	1.31	.249	4.39	78	3.02	89	7.03	19
13	Kid Nichols K. Nichols	20	222	1890	BSN	48	27	19	.587	47	2.23	47	7	0	424.0	374	105	175	8	112	11	1		1,755	30	4.71	2.38	1.98	0.17	12.6	6.4	1.15	.261	3.71	60	2.98	75	7.94	51
14	Silver King S. King	20	258	1888	STL	66	45	20	.692	64	1.63	64	6	0	584.2	435	106	203	6	76	30	1		2,291	23	3.97	1.17	3.39	0.09	11.3	3.3	0.87	.223	3.12	50	2.38	76	6.70	55
15	Matt Kilroy M. Kilroy	20	513	1886	BAL	68	29	34	.460	68	3.37	66	5	0	583.0	476	218	350	10	182	19	0		2,469	61	7.92	2.81	2.82	0.15	20.8	7.4	1.13	.267	5.40	100	2.60	77	7.35	47
16	Jersey Bakley J. Bakley	20	226	1884	TOT	46	16	30	.348	45	4.29	43	1	0	394.2	443	188	338	0	81		1		1,752	56	5.15	1.85	2.79	0.00	12.9	4.6	1.33		7.71	144	2.74	106	10.10	-9.3
17	Larry Corcoran L. Corcoran	20	268	1880	CWS	63	43	14	.754	60	1.95	57	4	2	536.1	404	116	218	6	99		3		2,133	19	4.50	1.66	2.71	0.10	12.6	4.6	0.94		3.66	80	2.23	91	6.78	16.5
18	John Ward J. Ward	20	230	1880	PRO	70	39	24	.619	67	1.74	59	8	1	595.0	501	115	230	5	45		4		2,351	19	3.48	0.68	5.11	0.08	9.8	1.9	0.92		3.48	76	2.10	91	7.58	9.3
19	Kerry Wood K. Wood	21	233	1998	CHC	26	13	6	.684	26	3.40	1	1	0	166.2	117	63	69	14	85	11	0	1	699	6	12.58	4.59	2.74	0.76	33.3	12.2	1.21	.289	3.73	80	3.16	73	6.32	21.9
20	Frank Tanana F. Tanana	21	269	1975	CAL	34	16	9	.640	33	2.62	16	5	0	257.1	211	75	80	21	73	7	1	6	1,029	8	9.41	2.55	3.68	0.73	26.1	7.1	1.10	.288	2.80	73	2.48	67	7.38	35.3
21	Bert Blyleven B. Blyleven	21	228	1972	MIN	39	17	17	.500	38	2.73	11	3	0	287.1	247	87	93	22	69	10	1	7	1,158	7	7.14	2.16	3.30	0.69	19.7	6.0	1.10	.271	2.91	87	2.63	81	7.74	20
22	Vida Blue V. Blue	21	301	1971	OAK	39	24	8	.750	39	1.82	24	8	0	312.0	209	63	73	19	88	4	0	3	1,207	10	8.68	2.54	3.42	0.55	24.9	7.3	0.95	.239	2.11	56	2.19	66	6.03	41.4
23	Bob Feller B. Feller	21	261	1940	CLE	43	27	11	.711	37	2.61	31	4	4	320.1	245	93	102	13	118	5	5		1,304	8	7.33	3.32	2.21	0.37	20.0	9.0	1.13	.256	2.87	65	2.89	73	6.88	39.3
24	Joe Wood J. Wood	21	231	1911	BSA	44	23	17	.575	33	2.02	25	5	3	275.2	226	62	113	2	76	11	11		1,102	10	7.54	2.48	3.04	0.07	21.0	6.9	1.10	.286	3.69	60	2.13	66	7.38	33.5
25	Amos Rusie A. Rusie	21	304	1892	NYG	65	32	31	.508	62	2.84	59	2	0	541.0	410	171	290	7	270	12	3		2,314	24	5.06	4.49	1.13	0.12	13.1	11.7	1.26	.234	4.82	89	3.04	96	6.82	5.2