Keshad Johnson has the highest career defensive rating in the playoffs, with a 144.4 rating.

Interpreted as:

highest career playoff defensive rating by a player

	NAME	DRTG	GP	MPG	PPG	RPG	APG	SPG	BPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TPG	MIN	PTS	REB	AST	STL	BLK	TOV	PF	+/-
1	Keshad Johnson K. Johnson	144.4	2	4.0	1.0	0.5	0.0	0.0	0.0	0.5	0.5	100.0	0.0	0.0		0.0	0.0		100.0	0.5	0.0	0.5	8	2	1	0	0	0	1	1	-1
2	Pelle Larsson P. Larsson	137.6	4	13.0	5.0	2.3	1.0	0.3	0.0	2.0	3.8	53.3	0.8	2.0	37.5	0.3	0.8	33.3	61.3	0.5	1.8	0.5	52	20	9	4	1	0	2	6	-49
3	Kel'el Ware K. Ware	134.3	4	18.3	4.8	4.8	1.0	0.3	0.5	2.0	4.5	44.4	0.8	2.8	27.3	0.0	0.0		52.8	1.0	3.8	0.5	73	19	19	4	1	2	2	3	-43
4	Josh Grant J. Grant	133.6	1	1.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0		0.0	0.0		0.0	0.0			0.0	0.0	0.0	1	0	0	0	0	0	0	0
5	Shane Heal S. Heal	132.0	2	1.5	3.0	0.0	0.5	0.0	0.0	1.0	1.0	100.0	1.0	1.0	100.0	0.0	0.0		150.0	0.0	0.0	0.0	3	6	0	1	0	0	0	0	+2
6	Jason Preston J. Preston	131.4	1	1.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0		0.0	0.0		0.0	0.0			0.0	0.0	0.0	1	0	0	0	0	0	0	0	-2
7	Keljin Blevins K. Blevins	131.0	2	2.0	1.0	0.0	0.0	0.0	0.0	0.5	1.0	50.0	0.0	0.5	0.0	0.0	0.0		50.0	0.0	0.0	0.0	4	2	0	0	0	0	0	1	-2
8	Alec Kessler A. Kessler	130.6	2	6.0	1.0	0.5	0.0	0.0	0.0	0.0	1.0	0.0	0.0	0.0		1.0	1.0	100.0	34.7	0.0	0.5	0.5	12	2	1	0	0	0	1	1
9	Trent Forrest T. Forrest	129.8	4	2.5	1.0	0.0	0.0	0.0	0.0	0.5	1.0	50.0	0.0	0.0		0.0	0.0		50.0	0.0	0.0	0.0	10	4	0	0	0	0	0	0	-12
10	Nassir Little N. Little	128.1	7	3.3	1.7	0.3	0.0	0.0	0.1	0.6	1.3	44.4	0.3	1.0	28.6	0.3	0.6	50.0	55.8	0.0	0.3	0.1	23	12	2	0	0	1	1	2	-7
11	Markus Howard M. Howard	128.1	9	12.4	4.7	0.8	0.4	0.0	0.1	1.7	4.1	40.5	1.2	2.9	42.3	0.1	0.2	50.0	55.4	0.1	0.7	0.0	112	42	7	4	0	1	0	10	+1
12	Davion Mitchell D. Mitchell	127.9	11	25.6	10.0	1.6	3.4	0.8	0.2	4.0	7.9	50.6	1.3	3.7	34.1	0.7	1.2	61.5	59.3	0.5	1.2	1.3	282	110	18	37	9	2	14	18	-106
13	Terry Dehere T. Dehere	127.9	2	2.5	0.0	0.5	0.0	0.0	0.0	0.0	0.5	0.0	0.0	0.5	0.0	0.0	0.0		0.0	0.5	0.0	0.5	5	0	1	0	0	0	1	1	+1
14	Sean Green S. Green	127.9	1	3.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0		0.0	0.0		0.0	0.0			0.0	0.0	0.0	3	0	0	0	0	0	0	0
15	Nigel Williams-Goss N. Williams-Goss	127.3	1	2.0	0.0	0.0	1.0	0.0	0.0	0.0	0.0		0.0	0.0		0.0	0.0			0.0	0.0	0.0	2	0	0	1	0	0	0	0	-5
16	Travis Mays T. Mays	127.2	1	20.0	4.0	1.0	0.0	0.0	0.0	2.0	4.0	50.0	0.0	1.0	0.0	0.0	0.0		50.0	0.0	1.0	1.0	20	4	1	0	0	0	1	3
17	Tyrone Wallace T. Wallace	127.1	2	5.5	2.0	0.5	1.5	0.0	0.0	0.5	2.0	25.0	0.0	0.0		1.0	1.5	66.7	37.6	0.0	0.5	0.5	11	4	1	3	0	0	1	2	+7
18	Bronny James B. James	126.9	2	2.0	0.0	0.0	0.0	0.0	0.0	0.0	1.0	0.0	0.0	1.0	0.0	0.0	0.0		0.0	0.0	0.0	0.0	4	0	0	0	0	0	0	0	+1
19	Travis Diener T. Diener	126.8	2	3.5	0.0	0.0	1.0	0.0	0.0	0.0	0.0		0.0	0.0		0.0	0.0			0.0	0.0	0.0	7	0	0	2	0	0	0	0	-3
20	Maurice Martin M. Martin	126.8	6	10.5	6.3	1.7	1.7	0.0	0.3	2.2	5.7	38.2	0.0	0.3	0.0	2.0	3.0	66.7	45.3	0.7	1.0	1.0	63	38	10	10	0	2	6	13
21	Byron Houston B. Houston	126.5	4	11.8	3.8	1.3	0.8	0.3	0.5	1.5	2.3	66.7	0.0	0.0		0.8	1.3	60.0	67.0	0.5	0.8	0.0	47	15	5	3	1	2	0	9
22	Doug West D. West	126.4	3	29.0	11.0	1.3	2.0	0.7	0.3	4.0	7.3	54.5	0.0	0.7	0.0	3.0	3.0	100.0	63.6	0.0	1.3	0.3	87	33	4	6	2	1	1	11	-34
23	Romeo Langford R. Langford	126.0	11	14.1	4.2	1.2	0.6	0.4	0.2	1.5	3.8	40.5	0.6	1.7	36.8	0.5	0.5	83.3	51.5	0.5	0.7	0.3	155	46	13	7	4	2	3	6	+7
24	Keith Jennings K. Jennings	126.0	3	13.0	5.0	1.7	1.3	0.3	0.0	1.3	4.3	30.8	0.3	1.7	20.0	2.0	2.3	85.7	46.6	0.3	1.3	1.3	39	15	5	4	1	0	4	11
25	KZ Okpala	126.0	2	3.0	0.0	0.0	0.0	0.0	0.0	0.0	0.5	0.0	0.0	0.5	0.0	0.0	0.0		0.0	0.0	0.0	0.0	6	0	0	0	0	0	0	0	+1