Maceo Baston has the best career defensive rating in the playoffs, with a 6.9 rating.

Interpreted as:

NBA playoff top defensive ratings 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	Maceo Baston M. Baston	6.9	1	1.0	0.0	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	1	0	0	0	1	0	0	0	0
2	Vincent Poirier V. Poirier	58.9	1	2.0	0.0	0.0	1.0	1.0	0.0	0.0	0.0		0.0	0.0		0.0	0.0			0.0	0.0	0.0	2	0	0	1	1	0	0	0	0
3	Anthony Roberson A. Roberson	63.5	1	4.0	8.0	1.0	0.0	2.0	0.0	3.0	4.0	75.0	2.0	2.0	100.0	0.0	0.0		100.0	1.0	0.0	1.0	4	8	1	0	2	0	1	0	+8
4	Rudy White R. White	66.5	1	2.0	2.0	1.0	0.0	1.0	0.0	1.0	3.0	33.3				0.0	0.0		33.3	1.0	0.0		2	2	1	0	1	0		0
5	Ben Kelso B. Kelso	67.1	1	1.0	0.0	1.0	1.0	0.0	0.0	0.0	2.0	0.0				0.0	0.0		0.0	0.0	1.0		1	0	1	1	0	0		0
6	DeJuan Wheat D. Wheat	67.4	1	3.0	2.0	1.0	0.0	1.0	0.0	1.0	2.0	50.0	0.0	0.0		0.0	0.0		50.0	0.0	1.0	0.0	3	2	1	0	1	0	0	0	0
7	Russ Lee R. Lee	69.5	6	2.0	1.8	0.5	0.2	0.5	0.2	0.8	1.3	62.5				0.2	0.7	25.0	56.4	0.2	0.3		12	11	3	1	3	1		0
8	Matt Ryan M. Ryan	74.7	1	3.0	0.0	1.0	0.0	1.0	0.0	0.0	1.0	0.0	0.0	1.0	0.0	0.0	0.0		0.0	0.0	1.0	1.0	3	0	1	0	1	0	1	0	+2
9	Lance Blanks L. Blanks	75.2	1	10.0	2.0	1.0	3.0	3.0	0.0	1.0	2.0	50.0	0.0	0.0		0.0	0.0		50.0	0.0	1.0	1.0	10	2	1	3	3	0	1	2
10	Kirk Haston K. Haston	77.0	2	2.0	1.0	0.5	0.0	0.5	0.0	0.5	0.5	100.0	0.0	0.0		0.0	0.0		100.0	0.0	0.5	0.0	4	2	1	0	1	0	0	1	-3
11	Chinanu Onuaku C. Onuaku	78.7	1	3.0	0.0	1.0	1.0	1.0	0.0	0.0	0.0		0.0	0.0		0.0	0.0			1.0	0.0	0.0	3	0	1	1	1	0	0	1	-3
12	David Vaughn D. Vaughn	79.1	1	1.0	0.0	0.0	0.0	0.0	1.0	0.0	0.0		0.0	0.0		0.0	0.0			0.0	0.0	0.0	1	0	0	0	0	1	0	0	0
13	Mark Randall M. Randall	79.4	2	3.0	0.0	2.5	0.0	0.0	0.5	0.0	0.5	0.0	0.0	0.0		0.0	0.0		0.0	0.5	2.0	0.5	6	0	5	0	0	1	1	1
14	Mike Niles M. Niles	79.8	2	2.0	0.0	0.0	0.0	0.5	0.0	0.0	2.5	0.0	0.0	0.0		0.0	0.0		0.0	0.0	0.0	0.0	4	0	0	0	1	0	0	0
15	Steve Bracey S. Bracey	80.3	4	3.5	2.5	0.3	0.8	0.8	0.0	0.8	1.8	42.9				1.0	1.0	100.0	57.1	0.0	0.3		14	10	1	3	3	0		1
16	Robert Sacre R. Sacre	80.4	2	2.0	0.0	1.0	0.0	0.5	0.0	0.0	0.5	0.0	0.0	0.0		0.0	0.0		0.0	0.0	1.0	0.0	4	0	2	0	1	0	0	0	+5
17	Steve Hayes S. Hayes	82.0	1	1.0	2.0	1.0	0.0	0.0	0.0	1.0	1.0	100.0	0.0	0.0		0.0	0.0		100.0	0.0	1.0	0.0	1	2	1	0	0	0	0	0
18	Marko Milic M. Milic	82.4	2	2.0	2.0	0.5	0.0	0.5	0.0	1.0	1.5	66.7	0.0	0.0		0.0	0.0		66.7	0.0	0.5	0.0	4	4	1	0	1	0	0	1	+7
19	Bernard Robinson B. Robinson	82.4	1	6.0	0.0	1.0	2.0	1.0	0.0	0.0	1.0	0.0	0.0	0.0		0.0	0.0		0.0	0.0	1.0	1.0	6	0	1	2	1	0	1	2	-8
20	Connie Norman C. Norman	84.8	1	1.0	2.0	1.0	0.0	0.0	0.0	1.0	1.0	100.0				0.0	0.0		100.0	0.0	1.0		1	2	1	0	0	0		0
21	Yi Jianlian Y. Jianlian	85.1	1	5.0	2.0	2.0	0.0	1.0	0.0	1.0	3.0	33.3	0.0	1.0	0.0	0.0	1.0	0.0	29.1	0.0	2.0	0.0	5	2	2	0	1	0	0	0	+10
22	Rich Yonakor R. Yonakor	85.6	2	2.0	1.0	0.5	0.5	0.5	0.0	0.5	1.0	50.0	0.0	0.0		0.0	0.0		50.0	0.0	0.5	0.0	4	2	1	1	1	0	0	1
23	John Block J. Block	87.0	4	8.5	3.3	1.5	0.0	1.0	0.0	1.5	3.8	40.0				0.3	0.8	33.3	39.8	0.5	1.0		34	13	6	0	4	0		5
24	Art Williams A. Williams	87.8	12	8.0	2.3	1.9	2.4	0.6	0.0	0.8	2.3	37.0				0.6	0.7	87.5	44.2	0.3	1.6		96	27	23	29	7	0		14
25	Reed Sheppard R. Sheppard	88.0	3	3.3	0.0	0.3	0.3	0.7	0.3	0.0	0.7	0.0	0.0	0.7	0.0	0.0	0.0		0.0	0.0	0.3	0.3	10	0	1	1	2	1	1	1	-26