Tim Duncan has the lowest career defensive rating by a forward, with a 93.6 rating.

Interpreted as:

best defensive rating with a minimum of 10000 minutes played list forwards

	NAME	DRTG	MIN	GP	MPG	PPG	RPG	APG	SPG	BPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TPG	PTS	REB	AST	STL	BLK	TOV	PF	+/-
1	Tim Duncan T. Duncan	93.6	25,240	666	37.9	22.1	12.0	3.1	0.8	2.5	8.4	16.7	50.5	0.0	0.2	20.4	5.2	7.5	68.5	55.1	3.2	8.8	2.9	14,689	8,020	2,092	529	1,650	1,928	1,833	+4841
2	Gar Heard G. Heard	95.4	15,493	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	5,167	4,653	1,060	784	780	349	1,711
3	Paul Silas P. Silas	96.8	15,605	572	27.3	7.9	9.2	1.9	0.6	0.2	2.9	7.0	41.0	0.0	0.0		2.1	3.1	68.8	47.1	3.6	5.6	1.4	4,508	5,248	1,071	358	138	333	1,364
4	George McGinnis G. McGinnis	97.4	16,194	528	30.7	17.2	9.8	3.8	1.7	0.4	6.4	14.3	44.8	0.0	0.1	8.0	4.4	6.7	65.1	49.8	3.0	6.8	3.5	9,090	5,177	1,985	923	236	1,291	1,984
5	Elvin Hayes E. Hayes	97.5	32,199	894	36.0	18.6	10.9	1.7	1.0	2.0	7.4	16.1	46.0	0.0	0.1	14.7	3.7	5.5	67.6	50.0	3.1	7.8	2.4	16,600	9,751	1,540	864	1,771	1,358	2,967
6	Jermaine O'Neal J. O'Neal	98.1	13,268	463	28.7	15.5	7.8	1.5	0.5	1.8	5.9	12.8	46.4	0.0	0.2	19.2	3.6	5.1	71.3	51.6	2.0	5.8	2.0	7,173	3,617	690	243	846	913	1,332	+857
7	Jim Brewer J. Brewer	98.5	15,936	703	22.7	5.8	6.3	1.5	0.8	0.7	2.5	5.7	44.8	0.0	0.1	7.7	0.8	1.3	57.1	46.7	2.4	4.0	0.9	4,099	4,458	1,038	556	510	332	1,536
8	John Havlicek J. Havlicek	98.7	14,531	395	36.8	18.5	5.1	4.8	1.2	0.3	7.5	16.5	45.3				3.5	4.1	84.3	50.3	1.5	3.5	2.5	7,295	1,999	1,885	476	117	204	1,024
9	Steve Mix S. Mix	98.8	17,716	726	24.4	10.9	5.4	1.8	1.2	0.2	4.2	8.3	50.2	0.0	0.1	28.6	2.5	3.1	80.9	56.2	1.9	3.5	1.3	7,909	3,908	1,340	884	173	563	1,583
10	Kevin Garnett K. Garnett	99.2	44,471	1,233	36.1	19.0	10.5	4.0	1.3	1.5	7.6	15.3	49.8	0.1	0.5	28.1	3.6	4.6	78.7	54.9	2.4	8.1	2.3	23,445	12,969	4,952	1,636	1,857	2,847	3,034	+4585
11	Bobby Jones B. Jones	99.5	20,177	774	26.1	11.5	5.5	2.4	1.4	1.3	4.4	8.0	55.0	0.0	0.0	0.0	2.7	3.5	78.0	60.4	1.7	3.8	1.8	8,911	4,256	1,888	1,050	982	1,217	2,104
12	Rick Barry R. Barry	99.5	19,585	554	35.4	21.2	5.2	5.7	2.0	0.5	8.6	19.1	44.9	1.0	3.1	33.0	3.9	4.2	91.6	50.5	0.9	4.3	2.5	11,729	2,876	3,163	1,104	269	574	1,464
13	Malik Rose M. Rose	99.7	13,404	813	16.5	6.2	4.1	0.8	0.6	0.4	2.2	5.0	43.7	0.0	0.1	17.7	1.7	2.3	74.3	50.7	1.4	2.7	1.3	5,003	3,371	684	487	293	1,059	1,896	+355
14	Julius Erving J. Erving	99.8	24,285	702	34.6	22.8	7.1	4.0	1.9	1.6	9.0	17.6	51.2	0.0	0.2	25.3	4.8	6.2	77.4	56.2	2.5	4.5	3.1	16,019	4,967	2,785	1,319	1,117	1,951	1,953
15	Truck Robinson T. Robinson	99.8	25,141	772	32.6	15.5	9.4	1.7	0.7	0.7	6.2	12.9	48.3	0.0	0.0	100.0	3.1	4.6	66.2	52.0	2.6	6.8	3.0	11,988	7,267	1,348	533	510	1,592	2,253
16	Kurt Thomas K. Thomas	99.9	15,365	595	25.8	8.4	6.8	1.2	0.7	0.7	3.6	7.5	48.4	0.0	0.0	25.0	1.2	1.6	75.1	51.7	1.8	5.0	1.2	5,023	4,075	693	409	432	725	2,023	+412
17	Shawn Kemp S. Kemp	100.0	25,168	890	28.3	15.0	8.6	1.7	1.1	1.3	5.4	10.8	50.0	0.0	0.1	27.7	4.2	5.6	73.7	56.5	3.0	5.6	2.7	13,347	7,658	1,511	1,019	1,150	2,373	3,216	+700
18	Dennis Rodman D. Rodman	100.2	28,839	911	31.7	7.3	13.1	1.8	0.7	0.6	3.0	5.8	52.1	0.1	0.4	23.1	1.2	2.0	58.4	54.6	4.8	8.4	1.6	6,683	11,954	1,600	611	531	1,484	2,843	+827
19	Spencer Haywood S. Haywood	100.5	18,012	577	31.2	16.9	8.2	1.7	0.6	1.1	6.8	14.6	46.5	0.0	0.0	12.5	3.3	4.2	79.1	51.3	2.6	5.6	2.2	9,747	4,721	959	355	629	716	1,662
20	Bob Dandridge B. Dandridge	100.5	18,370	526	34.9	19.1	6.2	3.5	1.3	0.6	7.9	16.4	48.0	0.0	0.2	16.7	3.3	4.2	80.1	52.4	1.7	4.4	2.7	10,062	3,245	1,821	661	303	630	1,798
21	Curtis Rowe C. Rowe	100.7	12,607	427	29.5	10.9	6.6	1.5	0.5	0.5	4.5	9.3	47.7				1.9	2.7	72.6	51.6	2.1	4.4	1.6	4,639	2,805	661	199	193	164	990
22	Chris Webber C. Webber	100.7	25,474	675	37.7	21.1	10.0	4.4	1.5	1.3	8.8	18.7	47.2	0.3	1.0	30.0	3.2	4.7	66.9	50.8	2.6	7.3	2.8	14,259	6,724	2,963	989	906	1,911	2,167	+1526
23	Bill Robinzine B. Robinzine	100.8	11,432	529	21.6	10.5	6.1	1.1	1.1	0.2	4.1	8.6	48.2	0.0	0.0	25.0	2.2	3.0	74.9	53.1	2.1	4.0	2.0	5,541	3,209	560	563	84	769	1,963
24	Kermit Washington K. Washington	100.9	12,415	462	26.9	9.7	8.8	1.5	0.8	1.2	3.7	7.0	52.8	0.0	0.0	0.0	2.3	3.6	66.0	56.8	3.2	5.7	2.0	4,494	4,085	676	382	532	629	1,553
25	Karl Malone K. Malone	101.1	54,852	1,476	37.2	25.0	10.1	3.6	1.4	0.8	9.2	17.8	51.6	0.1	0.2	27.4	6.6	8.9	74.2	57.7	2.4	7.7	3.1	36,928	14,968	5,248	2,085	1,145	4,524	4,578	+3010