Ben Simmons had the lowest defensive rating by a guard in 2020-21, with a 106.1 rating.

Interpreted as:

NBA defensive rating with a minimum of 2000 minutes played per 82 team games guards leader 2021

	NAME	DRTG	SEASON	TM	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	Ben Simmons B. Simmons	106.1	2020-21	PHI	58	32.4	14.3	7.2	6.9	1.6	0.6	5.6	10.1	55.7	0.1	0.2	30.0	3.0	4.9	61.3	58.4	1.6	5.6	3.0	1,877	829	417	401	93	35	173	171	+329
2	Danny Green D. Green	107.5	2020-21	PHI	69	28.0	9.5	3.8	1.7	1.3	0.8	3.2	7.9	41.2	2.5	6.3	40.5	0.4	0.6	77.5	58.2	0.8	3.0	1.0	1,934	654	260	118	92	56	67	125	+312
3	Dennis Schröder D. Schröder	109.2	2020-21	LAL	61	32.1	15.4	3.5	5.8	1.1	0.2	5.4	12.5	43.7	1.2	3.5	33.5	3.4	4.0	84.8	54.3	0.5	3.0	2.7	1,956	941	211	351	70	13	163	159	+84
4	Kentavious Caldwell-Pope K. Caldwell-Pope	109.4	2020-21	LAL	67	28.4	9.7	2.7	1.9	0.9	0.4	3.3	7.6	43.1	1.8	4.4	41.0	1.4	1.7	86.6	58.8	0.4	2.3	1.0	1,902	653	179	127	62	26	66	114	+138
5	Jordan Clarkson J. Clarkson	109.5	2020-21	UTA	68	26.7	18.4	4.0	2.5	0.9	0.1	6.7	15.8	42.5	3.1	8.8	34.7	1.9	2.1	89.6	54.9	0.7	3.3	1.7	1,818	1,251	274	168	61	10	115	110	+301
6	Russell Westbrook R. Westbrook	109.7	2020-21	WAS	65	36.4	22.2	11.5	11.7	1.4	0.4	8.4	19.0	43.9	1.3	4.2	31.5	4.2	6.4	65.6	50.9	1.7	9.9	4.8	2,369	1,445	750	763	89	23	312	190	-87
7	Donovan Mitchell D. Mitchell	110.3	2020-21	UTA	53	33.4	26.4	4.4	5.2	1.0	0.3	9.0	20.6	43.8	3.4	8.7	38.6	5.0	6.0	84.5	56.9	0.9	3.5	2.8	1,771	1,401	235	277	52	15	147	117	+287
8	RJ Barrett	110.4	2020-21	NYK	72	34.9	17.6	5.8	3.0	0.7	0.3	6.5	14.7	44.1	1.7	4.3	40.1	2.9	3.8	74.6	53.5	0.9	4.8	1.9	2,511	1,264	414	217	53	20	139	188	+137
9	T.J. McConnell	110.5	2020-21	IND	69	26.0	8.6	3.7	6.6	1.9	0.3	4.0	7.1	55.9	0.2	0.7	31.3	0.5	0.7	68.8	58.3	0.8	2.9	2.0	1,796	596	256	456	128	23	135	113	+70
10	Chris Paul C. Paul	110.6	2020-21	PHX	70	31.4	16.4	4.5	8.9	1.4	0.3	6.3	12.6	49.9	1.5	3.7	39.5	2.4	2.6	93.4	59.9	0.4	4.1	2.2	2,199	1,149	312	622	99	19	156	166	+310
11	Dejounte Murray D. Murray	110.8	2020-21	SAS	67	31.9	15.7	7.1	5.4	1.5	0.1	6.6	14.5	45.3	0.9	3.0	31.7	1.6	2.0	79.1	50.9	0.9	6.2	1.7	2,139	1,051	473	363	101	7	117	135	+88
12	Reggie Bullock Jr. R. Bullock Jr.	110.9	2020-21	NYK	65	30.0	10.9	3.4	1.5	0.8	0.2	3.8	8.6	44.2	2.5	6.1	41.0	0.8	0.8	90.9	60.6	0.2	3.2	0.7	1,949	709	223	99	52	11	45	146	+107
13	Stephen Curry S. Curry	111.2	2020-21	GSW	63	34.1	32.0	5.5	5.8	1.2	0.1	10.4	21.7	48.2	5.3	12.7	42.1	5.7	6.3	91.6	65.5	0.5	5.0	3.4	2,151	2,015	345	363	77	8	213	119	+242
14	Jrue Holiday J. Holiday	111.2	2020-21	MIL	59	32.3	17.7	4.5	6.1	1.6	0.6	7.0	13.9	50.3	1.9	4.8	39.2	1.8	2.3	78.7	59.2	1.2	3.3	2.2	1,907	1,046	268	357	96	37	127	98	+379
15	Luka Dončić L. Dončić	111.3	2020-21	DAL	66	34.3	27.7	8.0	8.6	1.0	0.5	9.8	20.5	47.9	2.9	8.3	35.0	5.2	7.1	73.0	58.7	0.8	7.2	4.3	2,262	1,830	527	567	64	36	281	152	+164
16	Donte DiVincenzo D. DiVincenzo	111.5	2020-21	MIL	66	27.5	10.4	5.8	3.1	1.1	0.2	3.8	9.1	42.0	2.0	5.2	37.9	0.8	1.1	71.8	54.2	1.2	4.5	1.4	1,814	688	380	203	72	15	91	112	+304
17	Fred VanVleet F. VanVleet	113.0	2020-21	TOR	52	36.5	19.6	4.2	6.3	1.7	0.7	6.5	16.7	38.9	3.3	9.2	36.6	3.3	3.7	88.5	53.4	0.6	3.6	1.8	1,898	1,019	220	328	87	37	95	119	+140
18	Dillon Brooks D. Brooks	113.3	2020-21	MEM	67	29.8	17.2	2.9	2.3	1.2	0.4	6.4	15.4	41.9	1.9	5.6	34.4	2.4	2.9	81.5	51.5	0.8	2.1	1.8	1,997	1,151	196	157	78	26	119	237	+153
19	Zach LaVine Z. LaVine	113.5	2020-21	CHI	58	35.1	27.4	5.0	4.9	0.8	0.5	9.8	19.4	50.7	3.4	8.2	41.9	4.4	5.1	84.9	63.4	0.6	4.4	3.5	2,034	1,591	289	282	46	27	203	138	-9
20	Devin Booker D. Booker	113.6	2020-21	PHX	67	33.9	25.6	4.2	4.3	0.8	0.2	9.3	19.2	48.4	1.9	5.5	34.0	5.1	5.9	86.7	58.7	0.5	3.7	3.1	2,270	1,712	281	289	53	16	207	181	+331
21	Kyrie Irving K. Irving	113.7	2020-21	BKN	54	34.9	26.9	4.8	6.0	1.4	0.7	10.2	20.1	50.6	2.8	7.0	40.2	3.7	4.0	92.2	61.4	1.0	3.8	2.4	1,886	1,451	257	324	76	37	130	140	+229
22	Terry Rozier T. Rozier	114.3	2020-21	CHA	69	34.5	20.4	4.4	4.2	1.3	0.4	7.4	16.4	45.0	3.2	8.3	38.9	2.4	2.9	81.7	57.5	0.7	3.7	1.9	2,383	1,407	302	293	87	26	128	119	-89
23	Justin Holiday J. Holiday	114.4	2020-21	IND	72	30.3	10.5	3.6	1.7	1.0	0.6	3.6	8.7	41.3	2.4	6.3	38.2	0.9	1.2	78.8	57.1	0.4	3.1	0.8	2,183	756	256	119	74	41	54	135	-45
24	Josh Richardson J. Richardson	114.4	2020-21	DAL	59	30.3	12.1	3.3	2.6	1.0	0.4	4.5	10.5	42.7	1.5	4.5	33.0	1.7	1.8	91.7	53.7	0.9	2.4	1.3	1,789	715	195	153	61	24	79	130	-46
25	Kevin Huerter K. Huerter	114.5	2020-21	ATL	69	30.8	11.9	3.3	3.5	1.2	0.3	4.6	10.6	43.2	2.0	5.6	36.3	0.7	0.9	78.1	54.1	0.6	2.8	1.1	2,126	822	231	241	82	18	79	165	+69