Isaiah Hartenstein has the lowest defensive rating this season, with a 99.3 rating.

Interpreted as:

NBA best defensive ratings with a minimum of 2000 minutes played per 82 team games by a player 2025-26

	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	Isaiah Hartenstein I. Hartenstein	99.3	2025-26	OKC	18	27.8	12.1	10.9	3.4	1.3	0.8	5.2	7.7	67.6	0.0	0.2	0.0	1.6	2.4	65.9	68.5	3.3	7.6	2.2	500	217	196	62	23	14	39	52	+171
2	Victor Wembanyama V. Wembanyama	102.6	2025-26	SAS	12	34.7	26.2	12.9	4.0	1.1	3.6	9.3	18.4	50.2	1.7	4.8	34.5	6.0	7.0	85.7	60.9	2.0	10.9	3.6	416	314	155	48	13	43	43	44	+85
3	Cason Wallace C. Wallace	103.0	2025-26	OKC	17	28.6	8.6	2.8	2.5	2.4	0.3	3.2	7.6	42.3	1.6	4.3	37.0	0.6	0.6	90.9	54.5	0.8	2.1	1.2	486	147	48	42	40	5	20	40	+186
4	Ajay Mitchell A. Mitchell	103.8	2025-26	OKC	18	27.7	16.1	3.7	3.8	1.8	0.3	5.8	12.7	46.1	1.2	3.6	33.8	3.2	3.6	89.2	56.5	0.7	3.0	1.8	499	290	66	69	32	6	33	41	+178
5	Shai Gilgeous-Alexander S. Gilgeous-Alexander	104.4	2025-26	OKC	18	33.1	32.2	4.9	6.6	1.5	0.8	10.8	19.9	54.3	2.2	5.4	41.2	8.3	9.3	89.8	67.1	0.6	4.3	1.8	595	580	88	119	27	15	32	32	+260
6	Kel'el Ware K. Ware	104.4	2025-26	MIA	17	24.5	12.0	10.6	0.6	1.1	1.3	4.7	8.9	52.6	0.9	2.5	38.1	1.6	2.1	77.8	60.8	3.3	7.3	0.9	416	204	180	11	18	22	15	32	+6
7	Jalen Duren J. Duren	107.4	2025-26	DET	14	28.8	20.5	11.5	2.1	1.0	1.0	7.4	11.0	67.5	0.0	0.0		5.6	7.4	76.7	72.0	4.2	7.3	2.4	403	287	161	29	14	14	33	45	+113
8	Nikola Jokić N. Jokić	108.0	2025-26	DEN	16	34.9	30.4	13.0	10.8	1.6	0.8	11.2	17.8	62.8	2.1	4.9	41.8	5.9	6.9	85.6	72.8	3.4	9.6	3.5	559	486	208	172	25	13	56	50	+196
9	Jalen Johnson J. Johnson	109.1	2025-26	ATL	16	34.1	22.4	9.6	7.0	1.7	0.3	8.5	15.1	56.2	1.4	3.3	41.5	4.0	5.0	80.0	64.6	1.1	8.6	3.0	546	358	154	112	27	5	48	32	+33
10	P.J. Washington	109.2	2025-26	DAL	17	31.4	15.0	7.8	2.4	1.0	1.2	5.4	12.5	43.2	1.5	4.5	32.5	2.7	4.1	65.7	52.3	1.2	6.6	2.6	533	255	132	41	17	20	45	38	-80
11	Scottie Barnes S. Barnes	109.4	2025-26	TOR	17	32.6	19.3	7.6	5.0	1.5	1.8	7.6	15.1	50.8	1.4	3.4	41.4	2.6	3.2	81.5	58.6	2.0	5.6	2.0	555	328	129	85	26	30	34	55	+75
12	Naz Reid N. Reid	110.2	2025-26	MIN	16	24.5	13.1	5.8	2.0	1.1	0.9	5.1	10.9	46.3	2.1	5.5	37.5	0.9	1.3	66.7	56.7	1.3	4.4	1.4	392	209	92	32	17	15	23	43	+11
13	Luka Dončić L. Dončić	110.6	2025-26	LAL	12	37.1	34.5	8.8	8.9	2.0	0.5	10.6	22.7	46.7	3.4	11.0	31.1	9.9	12.5	79.3	61.2	0.8	8.0	4.3	445	414	105	107	24	6	51	31	+60
14	Evan Mobley E. Mobley	110.8	2025-26	CLE	17	34.4	18.9	8.9	3.9	1.1	1.6	6.8	13.9	48.9	1.5	4.2	34.7	3.8	6.5	58.6	56.3	2.6	6.3	2.6	584	322	151	66	19	28	44	41	+75
15	Dyson Daniels D. Daniels	111.0	2025-26	ATL	18	33.0	9.9	6.2	5.7	2.3	0.4	4.4	9.0	48.8	0.2	1.3	17.4	0.9	1.4	64.0	51.4	2.1	4.2	2.2	594	178	112	102	41	8	40	47	+88
16	Cooper Flagg C. Flagg	111.1	2025-26	DAL	17	33.6	16.1	6.4	3.1	1.3	0.7	6.2	13.6	45.7	1.1	3.8	27.7	2.6	3.3	78.6	53.4	1.2	5.2	2.1	571	274	109	53	22	12	36	39	-146
17	Stephon Castle S. Castle	111.2	2025-26	SAS	13	32.0	17.3	5.8	7.5	1.7	0.4	5.9	11.9	49.7	0.9	3.8	24.0	4.5	6.5	69.4	58.5	1.5	4.3	4.0	416	225	76	98	22	5	52	47	+60
18	Peyton Watson P. Watson	111.5	2025-26	DEN	16	25.1	8.7	4.8	1.5	1.1	1.1	3.3	6.4	51.0	0.8	2.1	39.4	1.4	1.9	73.3	60.3	1.3	3.5	1.4	402	139	76	24	17	17	23	33	+85
19	Rudy Gobert R. Gobert	111.6	2025-26	MIN	16	31.8	10.7	10.1	1.8	0.5	1.7	4.6	6.2	73.7	0.0	0.0		1.6	3.2	49.0	70.4	3.5	6.6	1.9	509	171	161	28	8	27	30	49	+115
20	Naji Marshall N. Marshall	111.7	2025-26	DAL	18	26.7	11.8	4.9	2.4	1.1	0.1	3.7	7.8	47.5	0.9	2.9	30.2	3.5	4.4	79.7	60.6	0.7	4.3	1.2	481	213	89	44	19	2	21	33	-100
21	Onyeka Okongwu O. Okongwu	112.0	2025-26	ATL	17	29.6	16.2	7.4	2.7	0.8	1.0	5.9	11.4	51.8	1.9	4.8	40.7	2.5	3.2	78.2	63.5	1.6	5.8	1.8	504	276	125	46	14	17	30	60	-4
22	Cade Cunningham C. Cunningham	112.2	2025-26	DET	13	36.4	27.4	5.6	9.9	1.4	0.8	9.7	21.8	44.4	1.9	6.6	29.1	6.1	7.4	82.3	54.6	1.0	4.6	3.6	473	356	73	129	18	10	47	48	+96
23	Jusuf Nurkić J. Nurkić	112.2	2025-26	UTA	16	24.7	7.5	9.6	3.6	1.8	0.4	2.9	7.0	41.1	0.3	1.7	18.5	1.4	2.5	57.5	46.3	2.4	7.3	2.8	395	120	154	58	28	6	44	46	-46
24	Santi Aldama S. Aldama	112.4	2025-26	MEM	17	26.2	13.9	6.8	2.6	1.0	0.7	5.5	11.4	47.9	1.6	4.8	32.9	1.4	2.2	60.5	56.0	1.5	5.2	1.2	446	236	115	44	17	12	20	23	-19
25	Karl-Anthony Towns K. Towns	112.5	2025-26	NYK	15	33.5	21.7	12.5	3.4	0.9	0.8	6.8	15.9	42.9	1.9	5.9	31.8	6.2	7.1	87.7	57.1	3.1	9.3	2.7	502	325	187	51	14	12	41	57	+82