who is the oldest nba player to score 20 rebounds in a game

Dikembe Mutombo is the oldest in a game with 20+ rebounds. He was 40 years and 250 days old against the Nuggets on March 2, 2007.

Interpreted as:

Who is the oldest NBA player to score 20 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	Dikembe Mutombo D. Mutombo	40-250	22	3/2/2007	HOU	@	DEN	33	5	1	0	1	1	5	20.0	0	0		3	4	75.0	37.0	8	14	0	3	+14
2	LeBron James L. James	39-028	20	1/27/2024	LAL	@	GSW	48	36	12	0	0	14	25	56.0	2	4	50.0	6	6	100.0	65.1	1	19	3	2	-6
3	Hakeem Olajuwon H. Olajuwon	38-303	20	11/20/2001	TOR	vs	DET	43	14	2	1	5	6	11	54.5	0	0		2	2	100.0	58.9	5	15	1	3	-3
4	Dennis Rodman D. Rodman	38-294	21	3/2/2000	DAL	vs	NJN	33	4	0	0	0	2	6	33.3	0	0		0	0		33.3	7	14	1	0	+6
5	Kevin Willis K. Willis	38-216	20	4/10/2001	DEN	@	HOU	41	17	1	1	1	8	21	38.1	0	0		1	1	100.0	39.6	6	14	1	3	+14
6	Hakeem Olajuwon H. Olajuwon	38-023	20	2/13/2001	HOU	vs	WAS	34	15	1	4	3	6	13	46.2	0	0		3	4	75.0	50.8	5	15	3	5	+14
7	Marcus Camby M. Camby	37-319	20	2/4/2012	POR	vs	DEN	30	4	2	2	2	2	6	33.3	0	0		0	0		33.3	7	13	2	3	+10
8	Marcus Camby M. Camby	37-311	20	1/27/2012	POR	vs	PHX	24	0	3	2	2	0	4	0.0	0	0		0	0		0.0	2	18	1	2	+21
9	Marcus Camby M. Camby	37-308	22	1/24/2012	POR	vs	MEM	32	3	1	2	5	1	2	50.0	0	0		1	2	50.0	52.1	4	18	4	3	+29
10	Dennis Rodman D. Rodman	37-300	20	3/9/1999	LAL	@	LAC	35	4	1	0	2	2	3	66.7	0	0		0	4	0.0	42.0	5	15	2	5	+3
11	Tim Duncan T. Duncan	37-221	21	12/2/2013	SAS	vs	ATL	35	23	2	1	2	10	15	66.7	0	0		3	4	75.0	68.6	6	15	3	0	+1
12	Patrick Ewing P. Ewing	37-218	21	3/10/2000	NYK	@	PHI	35	19	4	1	0	7	17	41.2	0	0		5	6	83.3	48.4	5	16	3	5	+10
13	Robert Parish R. Parish	37-173	20	2/19/1991	BOS	@	PHX	41	21	1	2	5	8	14	57.1	0	0		5	7	71.4	61.5	6	14	0	3
14	Artis Gilmore A. Gilmore	37-118	25	1/17/1987	SAS	vs	UTA	37	12	4	0	2	3	7	42.9	0	0		6	8	75.0	57.0	6	19	2	2
15	Johnny Green J. Green	37-050	21	1/27/1971	CIN	vs	BAL	42	35	2			14	20	70.0				7	13	53.8	68.0				4
16	Dennis Rodman D. Rodman	36-331	20	4/9/1998	CHI	@	CLE	38	6	3	4	0	2	3	66.7	0	0		2	2	100.0	77.3	7	13	3	5	-10
17	Dennis Rodman D. Rodman	36-329	20	4/7/1998	CHI	vs	WAS	42	4	4	0	1	2	3	66.7	0	0		0	0		66.7	2	18	2	2	+19
18	Dennis Rodman D. Rodman	36-303	22	3/12/1998	CHI	@	DAL	35	3	2	0	0	1	5	20.0	0	0		1	2	50.0	25.5	10	12	2	4	0
19	Dennis Rodman D. Rodman	36-299	20	3/8/1998	CHI	@	NYK	46	6	0	0	0	3	8	37.5	0	0		0	0		37.5	6	14	1	2	+8
20	Marcus Camby M. Camby	36-288	20	1/4/2011	POR	@	DAL	39	10	4	0	0	5	10	50.0	0	0		0	0		50.0	5	15	1	1	-1
21	Marcus Camby M. Camby	36-283	20	12/30/2010	POR	vs	UTA	35	4	5	2	2	2	5	40.0	0	0		0	2	0.0	34.0	3	17	0	4	+18
22	Charles Barkley C. Barkley	36-268	24	11/15/1999	HOU	vs	IND	35	18	0	1	0	7	12	58.3	1	1	100.0	3	4	75.0	65.4	9	15	1	5	-11
23	Dennis Rodman D. Rodman	36-262	22	1/30/1998	CHI	@	GSW	34	7	1	0	0	3	9	33.3	0	0		1	2	50.0	35.4	11	11	0	2	+11
24	Dennis Rodman D. Rodman	36-261	20	1/29/1998	CHI	@	POR	43	6	2	1	1	2	5	40.0	0	0		2	2	100.0	51.0	7	13	3	1	+11
25	Dennis Rodman D. Rodman	36-259	22	1/27/1998	CHI	@	VAN	36	2	6	0	0	1	4	25.0	0	1	0.0	0	0		25.0	8	14	3	1	+15