who is the youngest player to get 21 rebounds in a game

Isaiah Stewart is the youngest in a game with 21+ rebounds. He was 19 years and 329 days old versus the Thunder on April 16, 2021.

Interpreted as:

Who is the youngest player to get 21 or more rebounds in a regular-season game?

	NAME	AGE	REB	DATE	TM		OPP	MIN	PTS	AST	STL	BLK	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TOV	PF	+/-
1	Isaiah Stewart I. Stewart	19-329	21	4/16/2021	DET	vs	OKC	32	15	3	0	2	7	12	58.3	0	1	0.0	1	2	50.0	58.2	9	12	1	4	+20
2	Dwight Howard D. Howard	20-043	21	1/20/2006	ORL	@	CHA	40	19	5	3	2	6	10	60.0	0	0		7	8	87.5	70.3	7	14	5	5	+3
3	Amar'e Stoudemire A. Stoudemire	20-055	21	1/10/2003	PHX	vs	MEM	40	16	0	2	0	7	16	43.8	0	0		2	2	100.0	47.4	8	13	4	2	-2
4	Jalen Duren J. Duren	20-071	21	1/28/2024	DET	vs	OKC	31	22	6	0	1	9	13	69.2	0	0		4	5	80.0	72.4	9	12	1	2	+1
5	Jalen Duren J. Duren	20-082	22	2/8/2024	DET	@	POR	37	27	1	0	3	9	15	60.0	0	1	0.0	9	10	90.0	69.6	8	14	3	5	+4
6	John Drew J. Drew	20-089	25	12/28/1974	ATL	vs	LAL	39	40	7			12	24	50.0				16	19	84.2	61.8	13	12		4
7	John Drew J. Drew	20-115	22	1/23/1975	ATL	vs	HOU		22	1			5	18	27.8				12	15	80.0	44.7				2
8	Jalen Duren J. Duren	20-116	23	3/13/2024	DET	vs	TOR	28	24	5	1	0	8	9	88.9	0	0		8	10	80.0	89.6	9	14	5	3	+9
9	Dwight Howard D. Howard	20-128	26	4/15/2006	ORL	vs	PHI	40	28	1	2	1	9	14	64.3	0	0		10	19	52.6	62.6	9	17	3	4	+12
10	John Drew J. Drew	20-129	21	2/6/1975	ATL	vs	DET		23	2			9	23	39.1				5	6	83.3	44.9				3
11	Tyson Chandler T. Chandler	20-136	22	2/15/2003	CHI	vs	DEN	36	19	0	0	3	9	16	56.3	0	0		1	2	50.0	56.3	9	13	0	2	+24
12	Karl-Anthony Towns K. Towns	20-140	21	4/3/2016	MIN	vs	DAL	44	11	9	1	3	5	13	38.5	0	3	0.0	1	1	100.0	40.9	3	18	6	3	-4
13	Andre Drummond A. Drummond	20-181	22	2/7/2014	DET	vs	BKN	40	16	1	1	1	7	12	58.3	0	0		2	8	25.0	51.5	8	14	3	4	+12
14	Andre Drummond A. Drummond	20-192	22	2/18/2014	DET	vs	CHA	34	16	1	1	2	8	15	53.3	0	0		0	2	0.0	50.4	11	11	1	5	-9
15	Andre Drummond A. Drummond	20-205	26	3/3/2014	DET	vs	NYK	46	17	0	2	3	6	9	66.7	0	0		5	7	71.4	70.4	7	19	0	2	+13
16	Andre Drummond A. Drummond	20-211	22	3/9/2014	DET	@	BOS	38	18	0	1	0	8	13	61.5	0	0		2	3	66.7	62.8	10	12	2	2	-9
17	Antoine Walker A. Walker	20-221	21	3/21/1997	BOS	vs	ORL	41	19	5	0	0	8	24	33.3	0	2	0.0	3	4	75.0	36.9	3	18	4	1	+1
18	Andre Drummond A. Drummond	20-244	26	4/11/2014	DET	@	CHI	42	26	0	3	1	11	17	64.7	0	0		4	9	44.4	62.0	12	14	2	4	+1
19	Shaquille O'Neal S. O'Neal	20-251	21	11/12/1992	ORL	vs	WAS	36	31	1	0	4	12	19	63.2	0	0		7	12	58.3	63.8	9	12	6	4
20	Alperen Sengun A. Sengun	20-256	21	4/7/2023	HOU	@	CHA	32	14	3	2	1	4	9	44.4	1	1	100.0	5	6	83.3	60.1	5	16	4	4	+5
21	DeJuan Blair D. Blair	20-266	21	1/13/2010	SAS	@	OKC	31	28	0	2	2	11	17	64.7	0	0		6	8	75.0	68.2	10	11	2	6	+7
22	Jarrett Allen J. Allen	20-270	24	1/16/2019	BKN	@	HOU	43	20	2	0	3	10	19	52.6	0	3	0.0	0	1	0.0	51.4	6	18	0	3	+14
23	Enes Kanter Freedom E. Kanter Freedom	20-285	22	3/1/2013	UTA	vs	CHA	44	23	1	0	1	10	12	83.3	0	0		3	4	75.0	83.6	5	17	5	1	+26
24	Shaquille O'Neal S. O'Neal	20-299	23	12/30/1992	ORL	vs	LAL	44	23	2	0	0	7	11	63.6	0	0		9	11	81.8	72.6	7	16	7	3
25	Shaquille O'Neal S. O'Neal	20-316	24	1/16/1993	ORL	@	CHI	50	29	2	1	5	11	18	61.1	0	0		7	12	58.3	62.3	9	15	6	2