Greg Ostertag got his most rebounds in a game against the Timberwolves on November 3, 2003, with 21 boards.

Interpreted as:

Greg Ostertag most rebounds in a regular-season game

	NAME	REB	DATE	TM		OPP	MIN	PTS	AST	STL	BLK	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TOV	PF	+/-
1	Greg Ostertag G. Ostertag	21	11/3/2003	UTA	vs	MIN	36	12	2	0	6	6	13	46.2	0	0		0	4	0.0	40.7	13	8	2	1	+4
2	Greg Ostertag G. Ostertag	20	11/15/1996	UTA	vs	VAN	31	16	1	0	3	7	15	46.7	0	0		2	2	100.0	50.4	11	9	3	2	+1
3	Greg Ostertag G. Ostertag	19	4/15/1999	UTA	@	LAC	42	16	0	0	5	6	13	46.2	0	0		4	6	66.7	51.2	7	12	1	3	+23
4	Greg Ostertag G. Ostertag	19	3/12/1997	UTA	@	NJN	31	10	0	0	5	3	11	27.3	0	0		4	6	66.7	36.7	10	9	2	2	+14
5	Greg Ostertag G. Ostertag	18	3/28/1997	UTA	vs	MIL	29	7	0	0	0	1	6	16.7	0	0		5	6	83.3	40.5	5	13	0	4	+4
6	Greg Ostertag G. Ostertag	16	12/14/1996	UTA	vs	ORL	33	16	1	1	5	8	13	61.5	0	1	0.0	0	0		61.5	4	12	2	4	+35
7	Greg Ostertag G. Ostertag	15	4/11/1999	UTA	vs	HOU	36	11	2	1	5	4	8	50.0	0	0		3	4	75.0	56.4	6	9	1	3	+15
8	Greg Ostertag G. Ostertag	15	12/10/1996	UTA	vs	IND	35	21	0	1	3	6	13	46.2	0	0		9	13	69.2	56.1	5	10	2	4	+19
9	Greg Ostertag G. Ostertag	14	2/27/2004	UTA	@	SAC	25	8	3	1	0	4	8	50.0	0	0		0	0		50.0	9	5	0	3	+9
10	Greg Ostertag G. Ostertag	14	1/26/2004	UTA	vs	LAC	41	18	0	1	5	6	13	46.2	0	0		6	8	75.0	54.5	8	6	2	4	+2
11	Greg Ostertag G. Ostertag	14	3/19/2003	UTA	@	PHX	40	13	1	0	4	6	8	75.0	0	0		1	2	50.0	73.2	4	10	1	4	+18
12	Greg Ostertag G. Ostertag	14	12/27/2001	UTA	@	POR	30	6	4	2	0	2	6	33.3	0	0		2	3	66.7	41.0	5	9	0	6	+17
13	Greg Ostertag G. Ostertag	14	1/24/2000	UTA	vs	LAL	40	5	0	1	2	2	5	40.0	0	0		1	2	50.0	42.5	3	11	0	5	+9
14	Greg Ostertag G. Ostertag	14	3/13/1999	UTA	vs	MIN	34	8	1	0	6	3	4	75.0	0	0		2	4	50.0	69.4	3	11	2	3	+22
15	Greg Ostertag G. Ostertag	14	3/22/1997	UTA	vs	LAC	29	11	0	0	2	5	10	50.0	0	0		1	2	50.0	50.6	8	6	0	4	+2
16	Greg Ostertag G. Ostertag	14	11/29/1996	UTA	vs	LAC	31	10	1	1	5	4	7	57.1	0	0		2	3	66.7	60.1	4	10	0	4	+24
17	Greg Ostertag G. Ostertag	13	11/7/2005	UTA	@	CHA	32	6	1	0	2	2	4	50.0	0	0		2	2	100.0	61.5	3	10	1	5	+13
18	Greg Ostertag G. Ostertag	13	3/6/2004	UTA	@	POR	27	6	6	0	1	2	4	50.0	0	0		2	4	50.0	52.1	4	9	1	2	-10
19	Greg Ostertag G. Ostertag	13	1/13/2004	UTA	vs	GSW	27	9	2	0	1	3	7	42.9	0	0		3	4	75.0	51.4	4	9	0	2	+5
20	Greg Ostertag G. Ostertag	13	1/9/2004	UTA	@	DEN	38	15	4	0	4	6	12	50.0	0	0		3	4	75.0	54.5	7	6	4	4	-5
21	Greg Ostertag G. Ostertag	13	4/11/2003	UTA	vs	DAL	35	6	1	1	1	3	6	50.0	0	0		0	4	0.0	38.7	4	9	1	3	+13
22	Greg Ostertag G. Ostertag	13	12/1/2001	UTA	vs	IND	31	12	1	0	1	5	11	45.5	0	0		2	2	100.0	50.5	10	3	1	2	+3
23	Greg Ostertag G. Ostertag	13	4/18/2000	UTA	@	DEN	22	4	1	0	4	0	6	0.0	0	0		4	4	100.0	25.8	5	8	3	6	-6
24	Greg Ostertag G. Ostertag	13	3/29/2000	UTA	vs	PHI	25	4	1	1	3	2	5	40.0	0	0		0	0		40.0	4	9	1	3	+7
25	Greg Ostertag G. Ostertag	13	11/12/1999	UTA	@	SAC	27	10	1	0	0	3	7	42.9	0	0		4	4	100.0	57.1	4	9	3	4	-6