The Phoenix Suns had the lowest defensive rating by a team in 1980-81, with a 99.4 rating.

	TEAM	DRTG	SEASON	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	Suns	99.4	1980-81	82	240.9	110.0	45.4	26.9	10.7	5.1	43.7	89.3	49.0	0.4	2.0	21.7	22.1	29.6	74.5	53.7	15.0	30.4	21.1	19,755	9,019	3,724	2,205	876	416	1,733	1,996
2	76ers	99.5	1980-81	82	242.1	111.7	45.2	28.9	10.5	7.2	44.3	86.3	51.4	0.2	1.0	22.6	22.7	29.6	76.8	56.2	13.3	31.9	20.8	19,855	9,156	3,709	2,369	857	591	1,702	2,061
3	Bucks	101.8	1980-81	82	240.9	113.1	44.7	28.3	10.5	6.5	45.4	91.1	49.8	0.4	1.6	22.9	22.0	28.5	77.0	54.6	15.4	29.4	19.3	19,755	9,276	3,669	2,319	862	530	1,581	2,198
4	Celtics	102.6	1980-81	82	241.2	109.9	43.6	26.9	8.3	7.2	43.7	86.6	50.4	0.8	2.9	27.0	21.7	28.9	75.2	55.3	14.1	29.6	19.2	19,780	9,008	3,579	2,202	683	594	1,577	1,990
5	Bullets	102.7	1980-81	82	241.2	105.6	45.0	26.2	7.8	4.8	43.3	91.7	47.2	0.8	2.9	27.0	18.3	25.3	72.3	51.4	14.1	30.9	17.3	19,780	8,662	3,688	2,151	641	392	1,422	1,895
6	Lakers	103.9	1980-81	82	241.5	111.2	44.6	28.8	9.9	6.7	46.1	90.0	51.2	0.2	1.1	18.1	18.8	25.8	72.9	54.8	14.2	30.4	19.0	19,805	9,117	3,656	2,363	808	551	1,557	1,955
7	Pistons	104.3	1980-81	82	240.9	99.7	40.4	22.2	10.8	6.0	39.5	85.2	46.3	0.2	1.0	15.5	20.6	28.4	72.5	51.0	14.6	25.7	21.5	19,755	8,174	3,312	1,819	884	492	1,759	2,125
8	Knicks	104.4	1980-81	82	241.8	107.9	40.8	24.1	10.5	3.8	42.7	88.5	48.3	0.7	2.9	23.7	21.7	29.1	74.7	53.3	13.9	26.9	17.8	19,830	8,849	3,342	1,976	861	314	1,461	1,917
9	Kings	104.7	1980-81	82	241.8	106.9	42.5	27.7	8.8	4.7	43.6	87.2	50.0	0.6	2.0	29.2	19.2	26.9	71.4	54.0	12.6	29.9	17.7	19,830	8,769	3,487	2,271	719	385	1,448	2,092
10	SuperSonics	104.8	1980-81	82	241.2	104.0	43.9	23.7	7.7	5.3	40.8	87.1	46.8	0.4	1.4	27.4	22.1	29.0	76.3	52.1	14.2	29.7	18.6	19,780	8,531	3,601	1,945	628	438	1,524	1,986
11	Pacers	105.0	1980-81	82	240.6	107.6	43.8	25.5	10.2	5.9	42.6	88.4	48.2	0.4	2.1	17.8	22.1	31.0	71.5	52.8	16.2	27.6	18.2	19,730	8,827	3,592	2,091	833	484	1,491	2,006
12	Spurs	105.7	1980-81	82	241.5	112.3	47.4	25.0	8.4	7.8	43.5	88.7	49.1	0.2	1.0	17.6	25.0	32.5	76.9	54.5	15.9	31.5	18.7	19,805	9,209	3,886	2,048	685	643	1,533	2,114
13	Trail Blazers	105.7	1980-81	82	242.1	110.7	44.3	27.4	9.4	5.9	45.6	91.9	49.6	0.3	1.8	16.9	19.2	26.7	71.8	53.4	15.2	29.1	18.5	19,855	9,080	3,631	2,244	769	480	1,518	2,034
14	Bulls	105.8	1980-81	82	241.2	109.0	45.1	23.5	8.9	6.3	42.2	84.2	50.1	0.5	2.2	21.2	24.2	31.3	77.4	55.6	15.0	30.2	20.4	19,780	8,937	3,702	1,925	729	514	1,672	2,058
15	Nets	106.7	1980-81	82	241.5	106.9	42.3	25.2	9.1	5.6	42.4	89.2	47.5	0.4	1.7	24.6	21.7	28.9	75.1	52.5	13.3	29.0	20.3	19,805	8,768	3,466	2,068	750	458	1,664	2,204
16	Rockets	106.7	1980-81	82	241.5	108.3	43.5	25.6	8.6	4.8	43.6	89.5	48.7	0.3	1.4	17.8	20.9	27.1	77.0	53.4	14.8	28.6	17.7	19,805	8,878	3,563	2,099	705	390	1,451	1,901
17	Hawks	107.3	1980-81	82	243.0	104.9	41.8	22.5	9.1	5.7	40.1	83.7	47.9	0.1	1.0	12.2	24.5	31.6	77.7	53.7	14.6	27.1	19.6	19,930	8,604	3,425	1,846	749	469	1,605	2,276
18	Clippers	107.6	1980-81	82	240.6	106.5	40.4	25.6	9.3	3.6	42.4	88.8	47.7	1.6	5.0	32.4	20.1	27.4	73.5	52.8	14.3	26.1	17.2	19,730	8,737	3,313	2,098	764	292	1,407	2,078
19	Cavaliers	109.1	1980-81	82	241.2	105.7	42.7	24.5	7.7	3.9	43.4	92.8	46.7	0.9	3.0	28.9	18.1	23.3	77.8	51.3	15.3	27.4	17.0	19,780	8,670	3,501	2,007	632	322	1,396	1,995
20	Jazz	109.4	1980-81	82	240.6	101.2	40.1	23.8	7.8	4.7	40.6	83.2	48.8	0.5	2.0	25.8	19.5	25.4	76.7	53.6	11.7	28.4	17.4	19,730	8,301	3,287	1,948	637	386	1,423	2,110
21	Warriors	109.7	1980-81	82	240.6	109.8	46.0	24.7	7.5	3.7	43.4	88.8	48.9	0.7	2.6	28.6	22.3	30.6	72.7	53.7	17.1	28.9	18.9	19,730	9,006	3,769	2,026	611	301	1,547	2,158
22	Nuggets	109.8	1980-81	82	243.4	121.8	46.6	24.8	8.8	4.6	46.1	97.1	47.5	0.4	1.8	20.7	29.1	37.2	78.3	53.7	16.2	30.5	17.6	19,955	9,986	3,822	2,030	720	380	1,444	2,108
23	Mavericks	110.8	1980-81	82	241.2	101.5	40.1	24.2	6.8	2.6	39.1	84.5	46.2	0.6	2.0	27.9	22.8	30.3	75.1	51.9	13.5	26.5	17.5	19,780	8,322	3,286	1,984	561	214	1,439	2,008