Dwight Gooden and Fernando Valenzuela are tied for the youngest Cy Young winners in a season. They were 20 years old.

Interpreted as:

youngest player to win cy young award in a regular season

	NAME	AGE	CY	SEASON	TM	G	W	L	W%	GS	ERA	SO	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	Dwight Gooden D. Gooden	20	1	1985	NYM	35	24	4	.857	35	1.53	268	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
2	Fernando Valenzuela F. Valenzuela	20	1	1981	LAD	25	13	7	.650	25	2.48	180	11	8	0	192.1	140	53	55	11	61	1	0	4	758	4	8.42	2.85	2.95	0.51	23.7	8.0	1.05	.255	2.57	73	2.44	72	6.55	20.4
3	Bret Saberhagen B. Saberhagen	21	1	1985	KCR	32	20	6	.769	32	2.87	158	10	1	0	235.1	211	75	79	19	38	1	0	1	931	1	6.04	1.45	4.16	0.73	17.0	4.1	1.06	.269	3.02	68	2.88	71	8.07	30.6
4	Vida Blue V. Blue	21	1	1971	OAK	39	24	8	.750	39	1.82	301	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
5	Clayton Kershaw C. Kershaw	23	1	2011	LAD	33	21	5	.808	33	2.28	248	5	2	0	233.1	174	59	66	15	54	3	0	2	912	5	9.57	2.08	4.59	0.58	27.2	5.9	0.98	.269	2.55	63	2.46	65	6.71	35.1
6	Roger Clemens R. Clemens	23	1	1986	BOS	33	24	4	.857	33	2.48	238	10	1	0	254.0	179	70	77	21	67	4	0	0	997	11	8.43	2.37	3.55	0.74	23.9	6.7	0.97	.237	2.73	58	2.80	69	6.34	36.3
7	Dean Chance D. Chance	23	1	1964	LAA	46	20	9	.690	35	1.65	207	15	11	4	278.1	194	51	56	7	86	2	7	9	1,093	9	6.69	2.78	2.41	0.23	18.9	7.9	1.01	.236	1.81	48	2.39	67	6.27	37.9
8	Felix Hernandez F. Hernandez	24	1	2010	SEA	34	13	12	.520	34	2.27	232	6	1	0	249.2	194	63	80	17	70	8	0	1	1,001	14	8.36	2.52	3.31	0.61	23.2	7.0	1.06	.263	2.88	58	3.04	75	6.99	28.4
9	Tim Lincecum T. Lincecum	24	1	2008	SFG	34	18	5	.783	33	2.62	265	2	1	0	227.0	182	66	72	11	84	6	0	1	928	17	10.51	3.33	3.15	0.44	28.6	9.1	1.17	.304	2.85	61	2.61	62	7.22	41.5
10	Barry Zito B. Zito	24	1	2002	OAK	35	23	5	.821	35	2.75	182	1	0	0	229.1	182	70	79	24	78	9	0	2	939	2	7.14	3.06	2.33	0.94	19.4	8.3	1.13	.245	3.10	63	3.86	89	7.14	12.6
11	Roger Clemens R. Clemens	24	1	1987	BOS	36	20	9	.690	36	2.97	256	18	7	0	281.2	248	93	100	19	83	9	0	4	1,157	4	8.18	2.65	3.08	0.61	22.1	7.2	1.18	.290	3.20	65	2.90	66	7.92	46.6
12	Tom Seaver T. Seaver	24	1	1969	NYM	36	25	7	.781	35	2.21	208	18	5	0	273.1	202	67	75	24	82	7	1	9	1,089	8	6.85	2.70	2.54	0.79	19.1	7.5	1.04	.232	2.47	62	3.10	91	6.65	9.4
13	Denny McLain D. McLain	24	1	1968	DET	41	31	6	.838	41	1.96	280	28	6	0	336.0	241	73	86	31	63	6	0	2	1,288	3	7.50	1.69	4.44	0.83	21.7	4.9	0.90	.231	2.30	64	2.53	79	6.46	24.8
14	Shane Bieber S. Bieber	25	1	2020	CLE	12	8	1	.889	12	1.63	122	0	0	0	77.1	46	14	15	7	21	1	0	0	297	5	14.20	2.44	5.81	0.81	41.1	7.1	0.87	.267	1.75	37	2.06	46	5.35	20.5
15	Blake Snell B. Snell	25	1	2018	TBR	31	21	5	.808	31	1.89	221	0	0	0	180.2	112	38	41	16	64	1	0	2	700	13	11.01	3.19	3.45	0.80	31.6	9.1	0.97	.241	2.04	46	2.94	72	5.58	23.1
16	Clayton Kershaw C. Kershaw	25	1	2013	LAD	33	16	9	.640	33	1.83	232	3	2	0	236.0	164	48	55	11	52	3	0	2	908	12	8.85	1.98	4.46	0.42	25.6	5.7	0.92	.251	2.10	51	2.38	64	6.25	35.4
17	Zack Greinke Z. Greinke	25	1	2009	KCR	33	16	8	.667	33	2.16	242	6	3	0	229.1	195	55	64	11	51	4	0	0	915	5	9.50	2.00	4.75	0.43	26.4	5.6	1.07	.303	2.51	48	2.32	53	7.65	52.5
18	Tim Lincecum T. Lincecum	25	1	2009	SFG	32	15	7	.682	32	2.48	261	4	2	0	225.1	168	62	69	10	68	6	0	2	905	11	10.42	2.72	3.84	0.40	28.8	7.5	1.05	.282	2.76	60	2.33	57	6.71	45.4
19	Johan Santana J. Santana	25	1	2004	MIN	34	20	6	.769	34	2.61	265	1	1	0	228.0	156	66	70	24	54	9	0	0	881	7	10.46	2.13	4.91	0.95	30.1	6.1	0.92	.250	2.76	56	2.91	66	6.16	38.1
20	Pedro Martinez P. Martinez	25	1	1997	MON	31	17	8	.680	31	1.90	305	13	4	0	241.1	158	51	65	16	67	9	0	5	947	3	11.37	2.50	4.55	0.60	32.2	7.1	0.93	.258	2.42	45	2.38	57	5.89	49
21	Tom Glavine T. Glavine	25	1	1991	ATL	34	20	11	.645	34	2.55	192	9	1	0	246.2	201	70	83	17	69	2	0	6	989	10	7.01	2.52	2.78	0.62	19.4	7.0	1.09	.260	3.03	67	3.05	80	7.33	20.8
22	Bret Saberhagen B. Saberhagen	25	1	1989	KCR	36	23	6	.793	35	2.16	193	12	4	0	262.1	209	63	74	13	43	2	0	6	1,021	8	6.62	1.48	4.49	0.45	18.9	4.2	0.96	.255	2.54	56	2.44	66	7.17	36.9
23	Denny McLain D. McLain	25	1	1969	DET	42	24	9	.727	41	2.80	181	23	9	0	325.0	288	101	105	25	67	4	0	7	1,304	5	5.01	1.86	2.70	0.69	13.9	5.1	1.09	.256	2.91	76	3.04	80	7.98	27.4
24	Jim Lonborg J. Lonborg	25	1	1967	BOS	39	22	9	.710	39	3.16	246	15	2	0	273.1	228	96	102	23	83	19	0	5	1,130	12	8.10	2.73	2.96	0.76	21.8	7.3	1.14	.270	3.36	91	2.95	82	7.51	19.8
25	Don Drysdale D. Drysdale	25	1	1962	LAD	43	25	9	.735	41	2.83	232	19	2	1	314.1	272	99	122	21	78	11	2	12	1,289	8	6.64	2.23	2.97	0.60	18.0	6.1	1.11	.265	3.49	78	2.86	81	7.79	23.9