Slick Watts has the lowest career defensive rating by a point guard, with a 97.4 rating.

best defensive rating point guards in nba history

Interpreted as:

best defensive rating with a minimum of 10000 minutes played point guards in NBA history

NAME	DRTG	MIN	GP	MPG	PPG	RPG	APG	SPG	BPG	TPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	PTS	REB	AST	STL	BLK	TOV	PF	+/-
Slick Watts	97.4	11,513	437	26.3	8.9	3.2	6.1	2.2	0.3	1.8	3.7	8.9	41.3				1.6	2.7	59.7	3,901	1,398	2,678	961	111	239	1,314
Norm Van Lier	97.6	14,655	424	34.6	11.0	4.3	6.5	1.8	0.2	2.1	4.1	10.1	40.2				2.9	3.7	77.3	4,666	1,809	2,776	767	71	249	1,481
Walt Frazier	98.1	13,626	359	38.0	18.7	5.4	5.6	1.9	0.2	2.1	7.6	15.9	47.9	0.0	0.3	0.0	3.5	4.2	81.9	6,731	1,926	2,028	681	63	139	922
Jim Price	99.6	10,159	370	27.5	11.1	3.3	4.1	1.6	0.3	1.7	4.6	10.5	44.4				1.9	2.3	81.6	4,123	1,220	1,528	596	106	275	1,003
Charlie Ward	99.9	14,080	630	22.3	6.3	2.6	4.0	1.2	0.2	1.6	2.2	5.4	40.8	1.0	2.8	36.4	0.8	1.0	77.1	3,947	1,648	2,539	776	128	1,038	1,276	+757
Dave Bing	100.4	11,547	322	35.9	16.9	3.2	6.1	1.3	0.3	2.7	6.5	14.7	44.0				4.0	4.9	80.7	5,433	1,016	1,957	422	84	216	947
Jo Jo White	100.9	19,315	541	35.7	16.0	3.6	4.9	1.3	0.2	2.4	6.8	15.3	44.6	0.0	0.1	16.7	2.3	2.8	85.0	8,632	1,940	2,675	686	112	504	1,257
Quinn Buckner	101.1	16,245	719	22.6	8.2	2.7	4.3	1.9	0.1	2.2	3.5	7.7	46.1	0.0	0.1	18.4	1.2	1.8	65.7	5,929	1,969	3,114	1,337	80	1,382	2,097
Foots Walker	101.5	15,036	658	22.9	6.4	2.6	4.7	1.5	0.1	1.8	2.3	5.4	43.5	0.0	0.1	22.7	1.7	2.2	76.2	4,199	1,686	3,111	992	83	792	1,414
Jason Kidd	101.9	48,068	1,315	36.6	13.0	6.4	9.0	1.9	0.3	3.0	4.6	11.5	40.1	1.4	4.1	34.9	2.3	3.0	78.4	17,071	8,402	11,842	2,559	425	3,927	2,447	+3681
Lionel Hollins	102.2	14,987	545	27.5	11.7	2.4	4.6	1.6	0.3	2.7	4.8	10.8	44.3	0.0	0.2	15.7	2.1	2.9	74.7	6,387	1,325	2,528	874	162	1,063	1,540
Gus Williams	102.5	25,164	792	31.8	17.6	2.8	5.6	2.0	0.4	2.5	7.2	15.7	46.2	0.2	0.9	23.6	3.0	4.0	75.7	13,955	2,182	4,458	1,621	286	1,592	1,584
Jim Cleamons	102.6	13,392	455	29.4	9.5	3.4	4.4	1.0	0.2	1.6	4.0	8.6	46.2	0.1	0.4	22.6	1.6	2.1	76.5	4,344	1,563	2,008	465	103	251	966
Henry Bibby	102.7	15,000	620	24.2	8.9	2.4	3.5	0.9	0.1	1.8	3.3	7.9	42.5	0.3	0.9	29.3	2.2	2.8	77.9	5,546	1,499	2,195	561	34	573	1,297
Kevin Porter	103.0	17,890	588	30.4	12.2	1.9	8.6	1.4	0.1	3.5	5.1	10.5	48.5	0.0	0.1	18.8	2.0	2.7	74.5	7,173	1,107	5,077	830	72	1,133	2,045
Don Buse	103.1	15,975	590	27.1	7.1	2.4	4.7	1.8	0.2	1.1	2.9	6.5	44.5	0.4	1.3	33.4	1.0	1.3	78.0	4,188	1,423	2,780	1,086	89	563	906
Eric Snow	103.6	21,288	765	27.8	7.1	2.6	5.1	1.2	0.1	1.7	2.6	6.2	42.7	0.1	0.3	19.1	1.8	2.4	76.4	5,469	1,986	3,928	908	89	1,302	1,824	+549
Nate McMillan	103.7	18,749	700	26.8	6.2	4.2	6.4	2.0	0.5	1.9	2.4	5.4	44.6	0.4	1.1	33.8	1.0	1.6	65.3	4,333	2,931	4,467	1,426	332	1,352	2,156	+219
Jamaal Tinsley	103.7	14,443	547	26.4	8.5	2.9	6.1	1.4	0.3	2.5	3.2	8.2	39.3	0.7	2.4	29.9	1.3	1.9	71.6	4,652	1,605	3,330	776	155	1,375	1,306	+503
Darrell Armstrong	103.9	16,167	675	24.0	9.1	2.7	3.9	1.3	0.1	1.8	3.2	7.8	40.8	1.1	3.4	33.3	1.6	1.9	86.9	6,169	1,854	2,648	906	80	1,187	1,098	+387
Brevin Knight	103.9	18,176	729	24.9	7.3	2.4	6.1	1.7	0.1	1.9	2.8	6.7	41.2	0.0	0.2	13.4	1.8	2.2	78.9	5,342	1,785	4,481	1,229	87	1,367	1,856	-1087
Anthony Carter	103.9	11,721	590	19.9	4.9	2.1	3.9	1.0	0.2	1.6	2.0	5.0	40.3	0.2	0.7	24.5	0.7	1.0	70.2	2,899	1,251	2,294	574	109	919	1,054	-289
John Stockton	104.0	47,764	1,504	31.8	13.1	2.7	10.5	2.2	0.2	2.8	4.7	9.1	51.5	0.6	1.5	38.4	3.2	3.9	82.6	19,711	4,051	15,806	3,265	315	4,244	3,942	+2941
Rajon Rondo	104.0	28,570	957	29.9	9.8	4.5	7.9	1.6	0.1	2.7	4.1	8.9	45.6	0.5	1.4	32.4	1.2	1.9	61.1	9,337	4,349	7,584	1,518	125	2,586	1,997	+1331
Chris Childs	104.1	13,617	541	25.2	6.9	2.4	4.9	0.9	0.1	2.0	2.4	5.9	40.3	0.7	2.0	34.4	1.4	1.7	81.6	3,710	1,308	2,633	490	54	1,064	1,586	+98