Art Williams had the lowest defensive rating when playing 50+ games, with a 91.5 rating.

Interpreted as:

lowest defensive rating by a player minimum 50 gp

	NAME	DRTG	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	Art Williams A. Williams	91.5	67	9.2	2.6	1.7	2.4	0.7	0.0	1.1	2.5	43.5				0.4	0.5	84.4	47.5	0.3	1.4		617	173	115	163	44	3		100
2	Dave Stallworth D. Stallworth	92.0	52	9.9	4.0	2.8	0.5	0.6	0.1	1.5	3.9	39.0				0.9	1.1	85.5	45.2	1.1	1.7		515	207	145	27	31	7		71
3	Jerry Sloan J. Sloan	92.3	177	34.2	12.4	6.8	1.9	2.2	0.2	4.9	11.3	43.9				2.5	3.4	72.6	48.5	2.1	4.8		6,054	2,194	1,210	332	381	32		615
4	Dave DeBusschere D. DeBusschere	92.6	71	38.0	18.1	10.7	3.6	0.9	0.5	7.9	17.1	46.1				2.3	3.1	75.6	49.0	1.9	8.8		2,699	1,282	757	253	67	39		222
5	Nate Thurmond N. Thurmond	93.0	269	28.3	7.6	9.6	2.5	0.5	2.1	3.0	7.3	40.8				1.7	2.8	61.2	44.9	2.8	6.8		7,609	2,053	2,571	670	125	553		738
6	Terry Driscoll T. Driscoll	93.6	75	10.0	2.8	2.9	0.8	0.3	0.2	1.2	2.7	45.5				0.4	0.6	64.6	48.2	1.1	1.8		749	213	215	57	22	16		128
7	Russ Lee R. Lee	93.8	51	6.0	3.0	1.4	0.5	0.4	0.1	1.3	3.3	39.4				0.4	0.6	60.0	41.5	0.6	0.8		305	152	71	27	22	3		46
8	Elmore Smith E. Smith	93.8	408	29.1	11.8	9.4	1.2	0.8	2.9	4.9	9.9	49.0				2.0	3.4	59.5	51.4	2.3	7.1	1.7	11,864	4,801	3,832	505	325	1,183	183	1,340
9	Jim Davis J. Davis	94.1	157	12.9	4.1	3.7	1.1	0.6	0.4	1.5	3.5	43.3				1.1	1.6	68.4	49.2	1.3	2.4		2,025	645	578	176	89	66		287
10	Tom Boerwinkle T. Boerwinkle	94.3	304	16.8	4.9	5.8	2.9	0.4	0.5	2.0	4.1	49.2				0.9	1.3	67.9	52.8	1.8	4.0	1.2	5,119	1,501	1,756	882	110	138	26	689
11	Dennis DuVal D. DuVal	94.3	50	5.3	1.9	0.6	0.7	0.4	0.1	0.8	2.2	36.1				0.4	0.5	66.7	40.0	0.2	0.4		267	96	31	34	22	4		49
12	Jerry Lucas J. Lucas	94.4	73	22.3	6.2	5.1	3.2	0.4	0.3	2.7	5.8	46.2				0.9	1.3	69.8	49.2	0.8	4.3		1,627	455	374	230	28	24		134
13	Manny Leaks M. Leaks	94.5	53	15.9	4.1	4.6	0.5	0.2	0.7	1.5	4.4	34.1				1.1	1.6	69.9	40.2	1.8	2.8		845	216	244	25	10	39		95
14	Curtis Perry C. Perry	94.5	320	30.1	10.9	9.3	2.1	1.2	0.9	4.5	9.6	46.7				1.9	2.6	71.8	50.4	3.2	6.1	1.4	9,636	3,474	2,972	678	379	291	63	1,141
15	Walt Wesley W. Wesley	94.5	85	7.7	3.2	2.4	0.3	0.2	0.3	1.3	2.9	46.3				0.5	0.9	59.5	48.8	1.0	1.4		654	272	200	27	16	25		127
16	Otto Moore O. Moore	94.9	282	23.1	6.3	7.2	1.9	0.7	1.2	2.6	5.9	43.9				1.1	1.7	65.2	47.3	1.8	5.5		6,503	1,768	2,043	545	186	342		728
17	Mel Counts M. Counts	95.2	150	14.9	5.0	4.6	1.8	0.6	0.5	2.1	5.0	41.8				0.8	1.1	75.4	45.7	1.2	3.3		2,239	756	687	274	85	74		355
18	Tom Kozelko T. Kozelko	95.3	189	10.1	2.2	1.8	0.5	0.4	0.1	0.9	2.1	41.9				0.4	0.5	74.5	46.0	0.6	1.2		1,911	407	346	99	68	16		281
19	Jim Ard J. Ard	95.3	218	12.2	3.5	3.8	0.7	0.2	0.4	1.4	3.8	36.1				0.8	1.1	69.5	41.0	1.1	2.7	0.9	2,666	771	820	149	43	96	14	384
20	Fatty Taylor F. Taylor	95.3	79	19.6	3.8	2.7	3.6	1.7	0.1	1.7	4.0	42.0				0.5	0.8	56.9	43.9	1.1	1.5		1,548	301	211	288	132	9		202
21	Gar Heard G. Heard	95.4	583	26.6	8.9	8.0	1.8	1.3	1.3	3.7	8.9	41.6	0.0	0.1	0.0	1.5	2.2	65.8	44.9	2.3	5.7	1.2	15,493	5,167	4,653	1,060	784	780	349	1,711
22	Earl Williams E. Williams	95.5	146	12.9	4.5	5.6	0.9	0.4	0.4	2.0	4.6	43.2				0.6	1.2	47.5	44.3	2.1	3.5	1.0	1,882	664	814	126	62	62	20	270
23	Tim Duncan T. Duncan	95.5	1,392	34.0	19.0	10.8	3.0	0.7	2.2	7.4	14.6	50.6	0.0	0.1	17.9	4.2	6.1	69.6	55.1	2.8	8.1	2.4	47,368	26,496	15,091	4,225	1,025	3,020	3,381	3,304	+8910
24	Dave Cowens D. Cowens	95.5	524	37.9	17.1	12.8	4.0	1.1	0.9	7.2	15.7	46.3	0.0	0.1	7.1	2.6	3.3	80.3	50.1	3.0	9.8	2.2	19,878	8,970	6,696	2,104	599	488	543	1,945
25	Joe Ellis J. Ellis	95.5	50	10.3	2.8	2.4	0.7	0.7	0.2	1.2	3.8	32.1				0.4	0.6	58.1	34.4	0.7	1.7		515	140	122	37	33	9		76