Alan Henderson grabbed his most boards in a game against the Seattle SuperSonics on November 26, 2002, with 21 rebounds.

Interpreted as:

Alan Henderson most rebounds in a regular-season game

	NAME	REB	DATE	TM		OPP	MIN	PTS	AST	STL	BLK	FGM	FGA	FG%	3PM	3PA	FTM	FTA	FT%	TS%	OREB	DREB	TOV	PF	+/-
1	Alan Henderson A. Henderson	21	11/26/2002	ATL	vs	SEA	42	14	1	0	1	4	9	44.4	0	0	6	7	85.7	57.9	7	14	4	1	+4
2	Alan Henderson A. Henderson	17	3/10/2005	DAL	vs	LAL	29	10	0	1	3	4	6	66.7	0	0	2	2	100.0	72.7	7	10	0	4	-14
3	Alan Henderson A. Henderson	15	12/7/2004	DAL	@	MIN	31	11	0	1	1	5	11	45.5	0	0	1	1	100.0	48.1	9	6	2	3	+10
4	Alan Henderson A. Henderson	15	11/4/2000	ATL	vs	ORL	43	19	0	5	0	5	12	41.7	0	0	9	18	50.0	47.7	9	6	4	4	-3
5	Alan Henderson A. Henderson	15	2/22/1999	ATL	vs	CHI	36	16	1	0	0	5	12	41.7	0	0	6	6	100.0	54.6	7	8	3	5	-16
6	Alan Henderson A. Henderson	15	2/10/1998	ATL	@	MIL	43	19	1	2	0	7	12	58.3	0	0	5	8	62.5	61.2	4	11	2	4	-1
7	Alan Henderson A. Henderson	14	11/14/1999	ATL	@	LAL	37	14	1	2	0	5	15	33.3	0	0	4	8	50.0	37.8	3	11	0	3	-14
8	Alan Henderson A. Henderson	14	3/19/1998	ATL	vs	MIL	37	14	2	1	0	6	17	35.3	0	0	2	3	66.7	38.2	5	9	3	2	-4
9	Alan Henderson A. Henderson	13	3/8/1998	ATL	vs	CLE	37	17	1	0	2	8	17	47.1	0	0	1	7	14.3	42.3	6	7	5	2	+1
10	Alan Henderson A. Henderson	13	11/11/1995	ATL	@	DAL	24	7	0	1	1	2	5	40.0	0	0	3	4	75.0	51.8	4	9	1	4
11	Alan Henderson A. Henderson	12	1/18/2006	CLE	@	DEN	29	16	1	2	1	7	9	77.8	0	0	2	4	50.0	74.3	6	6	2	2	-2
12	Alan Henderson A. Henderson	12	2/4/2005	DAL	@	IND	20	5	1	3	1	2	4	50.0	0	0	1	4	25.0	43.4	3	9	2	1	-4
13	Alan Henderson A. Henderson	12	1/18/2005	DAL	vs	WAS	24	5	1	1	0	2	6	33.3	0	0	1	2	50.0	36.3	4	8	0	4	-5
14	Alan Henderson A. Henderson	12	3/25/2001	ATL	@	MIL	36	18	1	1	0	8	15	53.3	0	0	2	4	50.0	53.7	5	7	3	6	-4
15	Alan Henderson A. Henderson	12	12/8/2000	ATL	@	MIA	38	22	1	0	0	10	17	58.8	0	0	2	4	50.0	58.6	5	7	4	6	-3
16	Alan Henderson A. Henderson	12	11/20/1999	ATL	vs	ORL	38	16	0	1	1	6	15	40.0	0	0	4	6	66.7	45.4	5	7	1	4	-4
17	Alan Henderson A. Henderson	12	11/16/1999	ATL	vs	CHA	31	12	1	1	1	5	15	33.3	0	0	2	4	50.0	35.8	6	6	1	2	+10
18	Alan Henderson A. Henderson	12	11/2/1999	ATL	@	WAS	35	8	0	0	0	4	9	44.4	0	0	0	0		44.4	5	7	2	2	+1
19	Alan Henderson A. Henderson	12	3/8/1999	ATL	@	ORL	35	19	0	4	0	7	18	38.9	0	0	5	6	83.3	46.0	5	7	2	2	+7
20	Alan Henderson A. Henderson	12	3/29/1998	ATL	vs	DET	40	19	0	3	0	6	15	40.0	0	0	7	10	70.0	49.0	3	9	3	2	+17
21	Alan Henderson A. Henderson	12	2/18/1998	ATL	vs	NJN	40	26	2	0	1	9	16	56.3	0	0	8	11	72.7	62.4	7	5	1	5	+17
22	Alan Henderson A. Henderson	12	1/29/1998	ATL	vs	PHI	44	19	1	2	2	8	15	53.3	0	0	3	7	42.9	52.5	5	7	3	3	+16
23	Alan Henderson A. Henderson	11	3/7/2005	DAL	vs	TOR	31	9	0	0	3	4	5	80.0	0	0	1	2	50.0	76.5	4	7	0	1	-2
24	Alan Henderson A. Henderson	11	2/12/2003	ATL	@	TOR	26	12	0	0	0	6	6	100.0	0	0	0	0		100.0	3	8	1	4	+7
25	Alan Henderson A. Henderson	11	11/29/2002	ATL	vs	MIA	31	5	0	1	0	2	4	50.0	0	0	1	2	50.0	51.2	5	6	0	3	+13