most strikeouts in a postseason by a single pitcher under 23

Michael Wacha has fanned the most batters by a pitcher younger than 23 in a postseason, with 33 strikeouts in his rookie season in 2013.

Interpreted as:

most strikeouts in a postseason by a single pitcher under 23 years old

	NAME	SO	AGE	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	H/9
1	Michael Wacha M. Wacha	33	22	2013	STL	5	4	1	.800	5	2.64	0	0	0	30.2	16	9	9	3	12	1	0	3	119	0	9.68	3.52	2.75	0.88	27.7	10.1	0.91	.186	2.64	4.70
2	Francisco Rodriguez F. Rodriguez	28	20	2002	ANA	11	5	1	.833	0	1.93	0	0	0	18.2	10	4	5	2	5	0	1	0	70	3	13.50	2.41	5.60	0.96	40.0	7.1	0.80	.229	2.41	4.82
3	Trey Yesavage T. Yesavage	27	21	2025	TOR	4	2	1	.667	4	4.26	0	0	0	19.0	14	9	9	2	10	1	0	1	79	1	12.79	4.74	2.70	0.95	34.2	12.7	1.26	.308	4.26	6.63
4	Noah Syndergaard N. Syndergaard	26	22	2015	NYM	4	2	1	.667	3	3.32	0	0	0	19.0	15	7	7	0	8	0	0	1	78	1	12.32	3.79	3.25	0.00	33.3	10.3	1.21	.341	3.32	7.11
5	Livan Hernandez L. Hernandez	26	22	1997	FLA	5	4	0	1.000	3	3.18	1	0	0	28.1	23	10	11	4	12	0	0	0	118	1	8.26	3.81	2.17	1.27	22.0	10.2	1.24	.250	3.49	7.31
6	Fernando Valenzuela F. Valenzuela	26	20	1981	LAD	5	3	1	.750	5	2.21	2	0	0	40.2	29	10	10	2	15	0	0	4	159	1	5.75	3.32	1.73	0.44	16.4	9.4	1.08	.233	2.21	6.42
7	Jaret Wright J. Wright	25	21	1997	CLE	5	3	0	1.000	5	4.73	0	0	0	26.2	24	14	15	5	19	0	0	1	120	1	8.44	6.41	1.32	1.69	20.8	15.8	1.61	.268	5.06	8.10
8	Steve Avery S. Avery	25	21	1991	ATL	4	2	0	1.000	4	1.53	0	0	0	29.1	19	5	6	1	5	0	0	0	109	0	7.67	1.53	5.00	0.31	22.9	4.6	0.82	.231	1.84	5.83
9	Ian Anderson I. Anderson	24	22	2020	ATL	4	2	0	1.000	4	0.96	0	0	0	18.2	11	2	2	0	10	0	0	0	77	1	11.57	4.82	2.40	0.00	31.2	13.0	1.13	.256	0.96	5.30
10	Joe Wood J. Wood	21	22	1912	BSA	4	3	1	.750	3	3.68	2	0	0	22.0	27	9	11	0	3	1	1	0	93	0	8.59	1.23	7.00	0.00	22.6	3.2	1.36	.397	4.50	11.05
11	Madison Bumgarner M. Bumgarner	18	20	2010	SFG	4	2	0	1.000	3	2.18	0	0	0	20.2	18	5	5	1	5	1	0	1	83	0	7.84	2.18	3.60	0.44	21.7	6.0	1.11	.293	2.18	7.84
12	Mark Prior M. Prior	18	22	2003	CHC	3	2	1	.667	3	2.31	1	0	0	23.1	16	6	9	2	9	1	0	0	97	2	6.94	3.47	2.00	0.77	18.6	9.3	1.07	.209	3.47	6.17
13	Dwight Gooden D. Gooden	18	21	1986	NYM	4	0	3	.000	4	3.46	0	0	0	26.0	33	10	12	3	9	1	0	0	118	0	6.23	3.12	2.00	1.04	15.3	7.6	1.62	.345	4.15	11.42
14	Dave Righetti D. Righetti	18	22	1981	NYY	4	3	0	1.000	3	2.12	0	0	0	17.0	17	4	4	1	7	1	0	0	74	0	9.53	3.71	2.57	0.53	24.3	9.5	1.41	.340	2.12	9.00
15	Waite Hoyt W. Hoyt	18	21	1921	NYY	3	2	1	.667	3	0.00	3	1	0	27.0	18	0	2	0	11	0	0	0	106	0	6.00	3.67	1.64	0.00	17.0	10.4	1.07	.234	0.67	6.00
16	Bret Saberhagen B. Saberhagen	16	21	1985	KCR	4	2	0	1.000	4	2.13	2	1	0	25.1	23	6	6	2	3	1	0	0	100	0	5.68	1.07	5.33	0.71	16.0	3.0	1.03	.269	2.13	8.17
17	Trevor Rosenthal T. Rosenthal	15	22	2012	STL	7	0	0		0	0.00	0	0	0	8.2	2	0	0	0	2	0	1	0	30	0	15.58	2.08	7.50	0.00	50.0	6.7	0.46	.154	0.00	2.08
18	Bill Gullickson B. Gullickson	15	22	1981	MON	3	1	2	.333	3	2.05	0	0	0	22.0	18	5	6	1	7	1	0	0	91	0	6.14	2.86	2.14	0.41	16.5	7.7	1.14	.254	2.45	7.36
19	Gary Nolan G. Nolan	15	22	1970	CIN	3	1	1	.500	3	3.93	0	0	0	18.1	17	8	8	4	7	0	0	2	76	0	7.36	3.44	2.14	1.96	19.7	9.2	1.31	.260	3.93	8.35
20	Madison Bumgarner M. Bumgarner	14	22	2012	SFG	3	1	2	.333	3	6.00	0	0	0	15.0	17	10	10	3	4	1	0	0	64	0	8.40	2.40	3.50	1.80	21.9	6.3	1.40	.333	6.00	10.20
21	Steve Avery S. Avery	14	22	1992	ATL	5	1	2	.333	4	5.85	0	0	0	20.0	24	13	13	3	5	0	0	0	86	1	6.30	2.25	2.80	1.35	16.3	5.8	1.45	.328	5.85	10.80
22	John Candelaria J. Candelaria	14	21	1975	PIT	1	0	0		1	3.52	0	0	0	7.2	3	3	3	2	2	0	0	0	29	0	16.43	2.35	7.00	2.35	48.3	6.9	0.65	.091	3.52	3.52
23	Dustin May D. May	13	22	2020	LAD	7	1	0	1.000	3	4.22	0	0	0	10.2	10	5	6	1	6	1	0	1	47	0	10.97	5.06	2.17	0.84	27.7	12.8	1.50	.346	5.06	8.44
24	Chief Bender C. Bender	13	21	1905	PHA	2	1	1	.500	2	1.06	2	1	0	17.0	9	2	2	0	6	0	0	0	64	0	6.88	3.18	2.17	0.00	20.3	9.4	0.88	.200	1.06	4.76
25	Rick Porcello R. Porcello	12	22	2011	DET	4	0	1	.000	2	4.80	0	0	0	15.0	15	8	9	0	2	2	0	2	64	0	7.20	1.20	6.00	0.00	18.8	3.1	1.13	.313	5.40	9.00