CJ McCollum has the highest defensive rating in a season, with a 127.8 rating this season.

Interpreted as:

highest def rtg with a minimum of 2000 minutes played per 82 team games by a player in a season

	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	CJ McCollum	127.8	2025-26	WAS	16	29.3	16.5	3.3	3.3	0.7	0.3	5.8	14.1	40.9	2.6	6.8	38.0	2.4	3.0	81.3	53.6	0.7	2.6	1.4	468	264	52	53	11	4	23	38	-111
2	Bub Carrington B. Carrington	126.5	2025-26	WAS	16	25.4	6.3	3.6	4.1	0.6	0.1	2.2	6.4	34.3	1.3	2.9	44.7	0.6	0.9	71.4	46.7	0.3	3.3	2.3	406	101	58	65	9	2	36	45	-209
3	Terance Mann T. Mann	125.4	2025-26	BKN	17	26.5	8.6	3.4	3.6	0.7	0.2	3.2	7.1	45.0	1.1	2.8	37.5	1.2	1.5	80.8	55.9	1.6	1.8	0.9	451	147	58	61	12	3	16	49	-107
4	Svi Mykhailiuk S. Mykhailiuk	125.2	2025-26	UTA	17	26.4	9.3	2.5	2.1	0.5	0.2	3.5	7.5	47.2	1.9	5.3	36.7	0.3	0.4	83.3	60.9	0.6	1.9	0.9	448	158	43	36	8	3	15	24	-32
5	Zach LaVine Z. LaVine	124.4	2025-26	SAC	16	33.5	20.5	3.3	2.2	0.7	0.1	7.3	14.7	49.8	2.8	7.1	38.6	3.1	3.5	89.3	63.2	0.2	3.1	2.2	536	328	53	35	11	2	35	37	-208
6	Collin Sexton C. Sexton	124.1	2025-26	CHA	16	26.6	15.8	2.1	4.7	0.6	0.0	5.3	11.2	46.9	1.4	3.7	37.3	3.9	4.6	86.3	59.9	0.3	1.8	2.8	426	253	34	75	10	0	44	36	-44
7	Keyonte George K. George	124.0	2023-24	UTA	75	27.0	13.0	2.8	4.4	0.5	0.1	4.3	10.9	39.1	2.0	5.9	33.4	2.5	3.0	84.8	53.3	0.2	2.6	2.5	2,023	974	211	332	36	7	188	91	-374
8	Saddiq Bey S. Bey	123.8	2025-26	NOP	17	26.9	12.1	5.4	2.2	0.9	0.0	4.3	10.2	42.2	1.9	5.3	35.6	1.6	2.4	65.9	53.7	1.8	3.5	0.6	457	205	91	37	15	0	11	20	-141
9	Noah Clowney N. Clowney	123.3	2025-26	BKN	17	27.2	12.2	3.5	1.6	0.7	0.6	3.6	9.0	39.9	2.1	6.4	33.0	2.9	3.7	79.4	57.5	0.6	2.9	1.6	462	208	60	27	12	11	28	38	-68
10	Keyonte George K. George	123.2	2024-25	UTA	67	31.5	16.8	3.8	5.6	0.7	0.1	5.4	13.7	39.1	2.6	7.6	34.3	3.5	4.3	81.8	53.9	0.4	3.4	2.7	2,109	1,125	253	377	46	9	183	111	-512
11	Collin Sexton C. Sexton	123.2	2023-24	UTA	78	26.6	18.7	2.6	4.9	0.8	0.2	6.5	13.3	48.7	1.6	4.2	39.4	4.1	4.7	86.2	60.7	0.9	1.7	2.1	2,075	1,458	205	383	62	18	165	154	-143
12	Keyonte George K. George	123.1	2025-26	UTA	17	34.6	23.4	4.1	7.2	1.1	0.2	7.4	16.7	44.4	2.2	6.8	31.9	6.4	7.0	90.8	59.0	0.6	3.5	3.3	589	397	69	122	18	4	56	39	-86
13	Corey Kispert C. Kispert	122.8	2023-24	WAS	80	25.8	13.4	2.8	2.0	0.5	0.2	4.8	9.9	48.6	2.3	6.0	38.3	1.4	2.0	72.6	62.0	0.4	2.4	1.2	2,067	1,070	225	156	41	16	98	141	-445
14	Dennis Schröder D. Schröder	122.8	2025-26	SAC	18	29.2	12.4	3.7	6.0	0.8	0.2	4.6	11.5	39.6	1.5	4.5	33.3	1.8	2.3	78.0	49.5	0.4	3.2	1.9	525	223	66	108	15	4	35	33	-148
15	Lauri Markkanen L. Markkanen	122.8	2025-26	UTA	17	35.6	28.5	6.1	2.2	1.0	0.5	9.6	20.4	47.3	3.4	8.9	37.7	5.9	6.6	89.3	61.2	2.3	3.8	1.4	605	485	104	38	17	8	23	31	-42
16	DeMar DeRozan D. DeRozan	122.7	2025-26	SAC	18	32.7	18.7	3.1	3.6	1.3	0.2	6.6	13.2	50.0	0.7	2.0	36.1	4.8	5.3	89.6	60.1	0.6	2.6	1.1	588	337	56	65	23	3	20	37	-169
17	Herbert Jones H. Jones	122.7	2025-26	NOP	16	30.3	9.5	3.8	2.3	1.4	0.3	3.4	8.8	39.0	1.6	4.3	36.2	1.1	1.4	73.9	50.3	0.9	2.8	1.6	484	152	60	37	23	4	26	57	-119
18	Kyshawn George K. George	122.7	2025-26	WAS	15	31.6	16.5	6.3	4.9	1.1	0.9	5.9	12.3	48.4	2.5	5.6	44.0	2.2	3.0	73.3	60.8	0.9	5.4	3.5	474	248	95	73	16	14	52	66	-152
19	Devin Booker D. Booker	122.6	2024-25	PHX	75	37.3	25.6	4.1	7.1	0.9	0.2	8.7	18.9	46.1	2.4	7.3	33.2	5.8	6.4	89.4	58.9	1.0	3.1	2.9	2,795	1,923	305	529	67	16	220	198	-175
20	Anfernee Simons A. Simons	122.6	2022-23	POR	62	35.0	21.1	2.6	4.1	0.7	0.2	7.5	16.9	44.7	3.4	9.1	37.7	2.6	2.9	89.4	58.1	0.3	2.3	2.1	2,170	1,306	161	253	42	14	128	142	-75
21	Jalen Green J. Green	122.5	2022-23	HOU	76	34.2	22.1	3.7	3.7	0.8	0.2	7.4	17.9	41.6	2.5	7.3	33.8	4.8	6.1	78.6	53.8	0.6	3.2	2.6	2,602	1,683	284	281	59	18	200	131	-447
22	Tyus Jones T. Jones	122.3	2024-25	PHX	81	26.8	10.2	2.4	5.3	0.9	0.1	3.8	8.4	44.8	2.0	5.0	41.4	0.6	0.7	89.5	58.5	0.5	1.9	1.1	2,174	829	196	429	69	8	91	63	-92
23	AJ Green	122.2	2025-26	MIL	18	28.4	10.7	2.6	1.7	0.4	0.1	3.4	7.2	47.3	3.1	6.5	47.0	0.9	1.2	76.2	69.8	0.1	2.6	0.8	511	193	47	30	8	1	14	55	-11
24	Michael Porter Jr. M. Porter Jr.	122.1	2025-26	BKN	16	32.6	24.3	7.4	3.0	0.8	0.2	8.7	18.0	48.3	3.1	8.6	36.2	3.8	4.5	83.3	60.7	1.1	6.3	2.1	521	388	118	48	12	3	34	34	-94
25	Kon Knueppel K. Knueppel	122.0	2025-26	CHA	17	33.6	19.4	5.8	2.9	0.8	0.2	6.8	13.8	49.1	3.7	8.5	43.8	2.1	2.4	90.0	65.4	1.1	4.7	2.4	571	329	99	49	13	4	41	41	-33