Roger McKee is the youngest in a win. He was 17 years and 17 days old against the Pirates on October 3, 1943.

Interpreted as:

youngest pitcher to regular-season win an MLB game

	NAME	AGE	W	DATE	TM		OPP	DEC	L	W%	GS	ERA	SO	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP
1	Roger McKee R. McKee	17-017	1	10/3/1943	PHN	@	PIT	W	0	1.000	1	3.00	1	1	0	0	9.0	5	3	3	0	5	0	0		35	2
2	Bob Feller B. Feller	17-294	1	8/23/1936	CLE	vs	SLA	W	0	1.000	1	1.00	15	1	0	0	9.0	6	1	1	0	4	0	0		37	1
3	Bob Feller B. Feller	17-309	1	9/7/1936	CLE	vs	SLA	W	0	1.000	1	1.00	10	1	0	0	9.0	7	1	1	0	3	0	0		35	1
4	Bob Feller B. Feller	17-315	1	9/13/1936	CLE	vs	PHA	W	0	1.000	1	2.00	17	1	0	0	9.0	2	2	2	0	9	1	0		39	1
5	Bob Feller B. Feller	17-325	1	9/23/1936	CLE	vs	CWS	W	0	1.000	1	1.00	10	1	0	0	9.0	7	1	2	0	6	0	0		37	1
6	Bob Feller B. Feller	17-329	1	9/27/1936	CLE	vs	DET	W	0	1.000	1	0.00	6	1	0	0	6.0	3	0	1	0	7	1	0		28	0
7	Bob Miller B. Miller	18-011	1	7/26/1953	DET	vs	NYY	W	0	1.000	0	0.00	1	0	0	0	3.1	2	0	0	0	3	1	0	0	15	0
8	Joey Jay J. Jay	18-036	1	9/20/1953	MIL	vs	CIN	W	0	1.000	1	0.00	4	1	1	0	7.0	3	0	0	0	4	0	0	0	26	1
9	Lefty Weinert L. Weinert	18-042	1	6/2/1920	PHN	vs	BKN	W	0	1.000	0	1.93	1	0	0	0	4.2	4	1	1	0	5	0	0		23	0
10	Lew Krausse L. Krausse	18-052	1	6/16/1961	KCA	vs	LAA	W	0	1.000	1	0.00	6	1	1	0	9.0	3	0	0	0	5	0	0	0	32	0
11	Von McDaniel V. McDaniel	18-059	1	6/16/1957	STL	@	BKN	W	0	1.000	0	0.00	5	0	0	0	4.0	1	0	0	0	0	1	1	0	14	0
12	Von McDaniel V. McDaniel	18-064	1	6/21/1957	STL	vs	BKN	W	0	1.000	1	0.00	4	1	1	0	9.0	2	0	0	0	3	0	0	0	33	1
13	David Clyde D. Clyde	18-066	1	6/27/1973	TEX	vs	MIN	W	0	1.000	1	3.60	8	0	0	0	5.0	1	2	2	1	7	0	0	0	21	0
14	Von McDaniel V. McDaniel	18-070	1	6/27/1957	STL	vs	PHI	W	0	1.000	1	4.91	5	0	0	0	7.1	5	4	4	1	6	0	0	0	29	0
15	Von McDaniel V. McDaniel	18-075	1	7/2/1957	STL	vs	MIL	W	0	1.000	1	2.45	2	0	0	0	7.1	5	2	2	0	0	0	0	0	27	0
16	David Clyde D. Clyde	18-095	1	7/26/1973	TEX	vs	CAL	W	0	1.000	1	0.00	5	0	0	0	7.0	3	0	0	0	3	0	0	0	28	0
17	David Clyde D. Clyde	18-100	1	7/31/1973	TEX	@	CAL	W	0	1.000	1	1.29	5	0	0	0	7.0	4	1	1	0	2	0	0	0	24	0
18	Von McDaniel V. McDaniel	18-101	1	7/28/1957	STL	vs	PIT	W	0	1.000	1	0.00	4	1	1	0	9.0	1	0	0	0	0	0	0	0	28	0
19	Von McDaniel V. McDaniel	18-107	1	8/3/1957	STL	vs	PHI	W	0	1.000	1	1.80	4	0	0	0	5.0	4	1	1	0	2	0	0	0	19	1
20	David Clyde D. Clyde	18-117	1	8/17/1973	TEX	vs	NYY	W	0	1.000	1	1.29	3	0	0	0	7.0	7	1	1	0	4	0	0	0	31	1
21	Von McDaniel V. McDaniel	18-124	1	8/20/1957	STL	@	NYG	W	0	1.000	1	2.00	5	1	0	0	9.0	8	2	2	1	1	0	0	0	35	0
22	Curt Simmons C. Simmons	18-132	1	9/28/1947	PHN	vs	NYG	W	0	1.000	1	1.00	9	1	0	0	9.0	5	1	1	0	6	0	0		37	0
23	Herb Pennock H. Pennock	18-139	1	6/28/1912	PHA	@	WSH	W	0	1.000	0	0.00	2	0	0	0	2.0	0	0	0	0	2	0	1		8	0
24	Lew Krausse L. Krausse	18-145	1	9/17/1961	KCA	@	WSH	W	0	1.000	1	2.00	3	1	0	0	9.0	5	2	2	0	1	0	0	0	32	0
25	Jim Bethke J. Bethke	18-161	1	4/15/1965	NYM	vs	HOU	W	0	1.000	0	0.00	0	0	0	0	0.2	0	0	0	0	1	0	1	0	2	0