Vít Krejčí has the lowest defensive rating in a month, with a -238.0 rating in November 2021.

Interpreted as:

NBA best defensive rating by a player in a month

	NAME	DRTG	MONTH	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	Vít Krejčí V. Krejčí	-238.0	November 2021	1	0.1	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	0	0	1	0	0	0	0	0	0
2	Brian Skinner B. Skinner	-156.1	March 2010	1	0.4	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	0	0	0	0	1	0	0	0	0
3	Jason Hart J. Hart	-124.9	January 2007	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	0.0	0	0	0	0	0	0	0	1	-1
4	Nerlens Noel N. Noel	-76.3	December 2022	1	0.6	1.0	0.0	0.0	1.0	0.0	0.0	0.0		0.0	0.0		1.0	2.0	50.0	56.8	0.0	0.0	0.0	1	1	0	0	1	0	0	0	0
5	Trey Jemison III T. Jemison III	-41.8	December 2025	1	0.3	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	0	0	1	0	0	0	0	0	0
6	Darko Milicic D. Milicic	-29.1	October 2003	1	1.0	0.0	2.0	0.0	0.0	0.0	0.0	0.0		0.0	0.0		0.0	0.0			0.0	2.0	2.0	1	0	2	0	0	0	2	1	-3
7	Bruno Caboclo B. Caboclo	-26.6	January 2016	1	1.1	0.0	1.0	0.0	1.0	0.0	0.0	0.0		0.0	0.0		0.0	0.0			0.0	1.0	1.0	1	0	1	0	1	0	1	0	-1
8	Jason Hart J. Hart	-11.5	December 2001	1	1.0	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	1	0	0	1	1	0	0	0	+4
9	Antonio Harvey A. Harvey	-11.2	January 1997	1	1.0	0.0	3.0	0.0	0.0	0.0	0.0	1.0	0.0	0.0	0.0		0.0	0.0		0.0	1.0	2.0	0.0	1	0	3	0	0	0	0	0	0
10	Tony Mitchell T. Mitchell	-5.1	October 2013	1	0.3	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	0	0	1	0	0	0	0	0	0
11	Miles Simon M. Simon	2.8	February 1999	1	1.0	0.0	0.0	0.0	1.0	0.0	0.0	2.0	0.0	0.0	1.0	0.0	0.0	0.0		0.0	0.0	0.0	0.0	1	0	0	0	1	0	0	0	0
12	C.J. Wilcox	8.7	December 2015	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	0.0	0	0	0	0	0	0	0	1	0
13	Shayne Whittington S. Whittington	11.8	January 2016	1	1.4	2.0	1.0	0.0	1.0	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	1	0	0	0	+4
14	Mark Randall M. Randall	13.1	November 1993	1	1.0	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	0.0	0.0	1	0	0	0	1	0	0	1
15	DaJuan Summers D. Summers	14.6	October 2010	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	0.0	0	0	0	0	0	0	0	1	-1
16	Kasparas Jakučionis K. Jakučionis	15.3	December 2025	1	0.9	0.0	0.0	0.0	1.0	0.0	0.0	2.0	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	-2
17	Damion James D. James	15.3	January 2013	2	0.2	0.0	0.5	0.0	0.0	0.0	0.0	0.0		0.0	0.0		0.0	0.0			0.0	0.5	0.0	0	0	1	0	0	0	0	0	-1
18	Georges Niang G. Niang	16.7	January 2018	1	1.1	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	+2
19	Theo Pinson T. Pinson	17.2	October 2019	1	1.2	0.0	1.0	1.0	1.0	0.0	0.0	0.0		0.0	0.0		0.0	0.0			0.0	1.0	0.0	1	0	1	1	1	0	0	0	+3
20	Antoine Carr A. Carr	21.2	March 1999	1	1.0	0.0	1.0	0.0	0.0	1.0	0.0	1.0	0.0	0.0	0.0		0.0	0.0		0.0	0.0	1.0	0.0	1	0	1	0	0	1	0	0	0
21	Tony Smith T. Smith	21.6	January 1998	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
22	Mike Sweetney M. Sweetney	21.6	October 2003	1	1.0	0.0	2.0	0.0	0.0	0.0	0.0	0.0		0.0	0.0		0.0	0.0			0.0	2.0	0.0	1	0	2	0	0	0	0	0	+2
23	Bruce Bowen B. Bowen	21.9	March 1997	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	+3
24	Kenton Edelin K. Edelin	29.7	January 1985	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
25	Alexis Ajinca A. Ajinca	31.8	October 2008	1	3.2	0.0	2.0	0.0	2.0	0.0	0.0	1.0	0.0	0.0	0.0		0.0	0.0		0.0	1.0	1.0	1.0	3	0	2	0	2	0	1	0	+4