Alonzo Mourning has the lowest defensive rating in a game with more than 30 minutes played, with a 47.0 rating against the Bulls on April 10, 1999.

Interpreted as:

lowest defensive rating by a player in a regular-season game with more than 30 minutes

	NAME	DRTG	MIN	DATE	TM		OPP	PTS	REB	AST	STL	BLK	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TOV	PF	+/-
1	Alonzo Mourning A. Mourning	47.0	32	4/10/1999	MIA	@	CHI	19	6	2	2	7	6	9	66.7	0	0		7	10	70.0	70.9	2	4	2	3	+34
2	Pau Gasol P. Gasol	50.1	31	1/11/2011	LAL	vs	CLE	13	14	3	3	1	6	12	50.0	0	0		1	1	100.0	52.3	3	11	0	2	+41
3	Tim Duncan T. Duncan	51.8	46	2/1/2003	SAS	@	MIA	17	25	4	1	5	6	13	46.2	0	0		5	7	71.4	52.9	2	23	6	2	+2
4	Carlos Boozer C. Boozer	52.6	35	3/19/2012	CHI	@	ORL	24	13	2	4	0	12	18	66.7	0	0		0	0		66.7	0	13	1	4	+19
5	Patrick Ewing P. Ewing	52.7	38	12/10/1985	NYK	vs	IND	18	18	3	1	5	7	12	58.3	0	0		4	7	57.1	59.7	3	15	5	4
6	Robert Parish R. Parish	53.1	35	11/15/1988	BOS	@	MIA	8	16	0	2	5	4	10	40.0	0	0		0	0		40.0	3	13	7	2
7	P.J. Brown	54.7	32	12/20/2000	CHA	vs	MIA	6	14	1	4	0	3	5	60.0	0	0		0	0		60.0	6	8	4	6	+3
8	Anthony Mason A. Mason	56.2	36	1/27/2001	MIA	@	ORL	9	13	3	2	1	2	12	16.7	0	0		5	9	55.6	28.2	1	12	1	2	+8
9	Donyell Marshall D. Marshall	56.7	34	12/18/2001	UTA	@	MIA	21	13	4	1	4	7	10	70.0	0	1	0.0	7	8	87.5	77.7	3	10	3	2	+21
10	Morris Peterson M. Peterson	56.7	36	2/10/2006	TOR	@	CHA	10	10	3	8	1	4	13	30.8	0	4	0.0	2	2	100.0	36.0	2	8	5	2	+28
11	Grant Hill G. Hill	57.3	31	12/1/1996	DET	vs	SAC	23	14	2	2	1	9	18	50.0	0	0		5	6	83.3	55.7	2	12	2	3	+27
12	Kendall Gill K. Gill	57.7	40	4/3/1999	NJN	vs	MIA	15	10	3	11	2	6	15	40.0	0	1	0.0	3	6	50.0	42.5	2	8	0	3	+10
13	Jermaine O'Neal J. O'Neal	57.7	40	11/4/2003	IND	vs	DEN	25	20	1	2	3	10	18	55.6	0	0		5	6	83.3	60.6	7	13	3	3	+22
14	Darrell Walker D. Walker	57.9	39	12/10/1985	NYK	vs	IND	19	8	3	6	0	7	15	46.7	0	0		5	7	71.4	52.5	3	5	3	3
15	Rasheed Wallace R. Wallace	58.3	35	1/1/2001	POR	vs	CHA	12	18	3	2	2	4	10	40.0	0	2	0.0	4	4	100.0	51.0	2	16	2	2	+16
16	Alonzo Mourning A. Mourning	58.4	40	2/21/1996	MIA	@	PHI	16	16	4	1	2	7	17	41.2	0	0		2	4	50.0	42.6	4	12	5	4
17	Zydrunas Ilgauskas Z. Ilgauskas	58.5	30	1/24/2006	CLE	vs	IND	18	9	2	2	4	7	12	58.3	0	0		4	5	80.0	63.4	0	9	2	3	+33
18	Tim Duncan T. Duncan	58.6	34	10/29/2003	SAS	@	DEN	17	21	1	2	8	7	22	31.8	0	0		3	4	75.0	35.8	5	16	5	4	-19
19	Tim Duncan T. Duncan	58.7	32	4/14/2004	SAS	vs	DEN	23	16	4	2	3	7	10	70.0	0	0		9	15	60.0	69.3	3	13	1	2	+22
20	Tim Duncan T. Duncan	58.7	35	11/10/2004	SAS	vs	GSW	23	18	3	2	5	9	16	56.3	0	0		5	12	41.7	54.0	3	15	1	2	+25
21	Hakeem Olajuwon H. Olajuwon	58.7	37	3/26/1993	HOU	@	WAS	10	17	3	3	3	3	9	33.3	0	0		4	4	100.0	46.5	2	15	4	4
22	Draymond Green D. Green	59.1	31	12/20/2016	GSW	vs	UTA	15	11	4	5	0	6	11	54.5	2	5	40.0	1	2	50.0	63.1	0	11	2	3	+32
23	Ben Wallace B. Wallace	59.2	41	4/9/2001	DET	vs	ATL	7	16	2	2	6	3	6	50.0	0	0		1	4	25.0	45.1	3	13	2	0	+13
24	Tim Duncan T. Duncan	59.2	32	2/19/2008	SAS	vs	CHA	7	15	5	1	5	2	12	16.7	0	0		3	4	75.0	25.4	5	10	3	2	+17
25	Derrick Favors D. Favors	59.5	34	12/27/2014	UTA	vs	PHI	17	15	3	3	5	7	11	63.6	0	0		3	3	100.0	69.0	2	13	4	3	+16