Tim Duncan has the most career double-doubles by a player younger than 39, with 830 double-doubles.

Interpreted as:

most regular-season double-double by a player before the age of 39

	NAME	DD2	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	Tim Duncan T. Duncan	830	1,331	34.4	19.5	11.0	3.1	0.7	2.2	7.6	14.9	50.6	0.0	0.1	18.1	4.4	6.3	69.6	55.1	2.8	8.2	2.5	45,832	25,974	14,644	4,062	978	2,942	3,291	3,179	+8484
2	Karl Malone K. Malone	778	1,353	37.4	25.7	10.3	3.5	1.4	0.8	9.4	18.1	52.0	0.1	0.2	27.8	6.8	9.1	74.1	57.9	2.5	7.8	3.1	50,545	34,707	13,973	4,706	1,901	1,094	4,211	4,257	+2619
3	Hakeem Olajuwon H. Olajuwon	774	1,209	36.1	22.1	11.3	2.5	1.8	3.1	8.8	17.2	51.2	0.0	0.1	20.3	4.5	6.3	71.2	55.4	3.3	7.9	3.0	43,692	26,770	13,606	3,033	2,139	3,793	3,634	4,319	+492
4	Dwight Howard D. Howard	748	1,242	31.8	15.7	11.8	1.3	0.9	1.8	5.7	9.7	58.7	0.0	0.1	21.4	4.3	7.6	56.7	60.2	3.3	8.4	2.7	39,434	19,485	14,627	1,676	1,081	2,228	3,302	3,912	+2878
5	Kevin Garnett K. Garnett	742	1,424	35.0	18.2	10.2	3.8	1.3	1.4	7.3	14.8	49.7	0.1	0.4	27.6	3.4	4.3	79.0	54.6	2.2	7.9	2.2	49,863	25,949	14,512	5,383	1,831	2,027	3,163	3,491	+4857
6	Shaquille O'Neal S. O'Neal	727	1,206	34.8	23.7	10.9	2.5	0.6	2.3	9.4	16.1	58.2	0.0	0.0	4.5	4.9	9.3	52.7	58.6	3.5	7.4	2.7	41,912	28,590	13,098	3,026	739	2,732	3,309	4,146	+4889
7	Charles Barkley C. Barkley	709	1,073	36.6	22.1	11.7	3.9	1.5	0.8	7.9	14.5	54.1	0.5	1.9	26.6	5.9	8.1	73.5	61.2	4.0	7.7	3.1	39,325	23,757	12,546	4,215	1,649	888	3,374	3,286	+532
8	John Stockton J. Stockton	677	1,326	32.1	13.2	2.7	10.9	2.2	0.2	4.7	9.1	51.7	0.6	1.5	38.8	3.2	3.9	82.4	61.0	0.6	2.0	2.9	42,547	17,563	3,554	14,404	2,959	272	3,817	3,517	+2472
9	Patrick Ewing P. Ewing	578	1,118	35.5	21.8	10.1	1.9	1.0	2.5	8.5	16.9	50.5	0.0	0.1	15.3	4.7	6.4	74.0	55.4	2.4	7.7	3.1	39,693	24,425	11,344	2,180	1,114	2,849	3,469	3,905	+432
10	Nikola Vučević N. Vučević	559	972	31.4	17.2	10.5	2.9	0.8	0.9	7.3	14.7	49.7	0.9	2.7	34.8	1.6	2.1	77.0	54.9	2.5	8.0	1.7	30,502	16,719	10,170	2,812	821	844	1,669	2,357	-1468
11	LeBron James L. James	556	1,450	38.0	27.2	7.5	7.3	1.5	0.8	9.9	19.7	50.5	1.6	4.6	34.6	5.7	7.7	73.5	58.9	1.2	6.3	3.5	55,078	39,380	10,888	10,635	2,227	1,093	5,063	2,633	+7298
12	David Robinson D. Robinson	544	987	34.7	21.1	10.6	2.5	1.4	3.0	7.5	14.4	51.8	0.0	0.1	25.0	6.1	8.3	73.6	58.3	3.1	7.5	2.4	34,271	20,790	10,497	2,441	1,388	2,954	2,417	2,835	+2454
13	Pau Gasol P. Gasol	532	1,226	33.4	17.0	9.2	3.2	0.5	1.6	6.5	12.8	50.7	0.1	0.4	36.8	3.9	5.1	75.3	56.5	2.5	6.7	2.2	41,002	20,894	11,305	3,925	606	1,941	2,638	2,632	+1826
14	Chris Paul C. Paul	527	1,272	34.1	17.5	4.5	9.4	2.1	0.2	6.2	13.2	47.1	1.4	3.7	36.9	3.8	4.3	87.0	58.1	0.6	3.9	2.3	43,314	22,288	5,682	11,894	2,614	200	2,964	3,034	+6109
15	Russell Westbrook R. Westbrook	523	1,237	33.3	21.2	7.0	8.0	1.6	0.3	7.6	17.4	43.9	1.1	3.6	30.5	4.8	6.3	77.2	52.6	1.6	5.4	3.9	41,170	26,205	8,677	9,925	1,955	406	4,829	3,157	+3039
16	Nikola Jokić N. Jokić	503	745	31.7	21.8	10.9	7.2	1.3	0.7	8.4	15.0	56.0	1.1	3.0	36.0	3.9	4.8	82.4	63.8	2.7	8.3	2.9	23,638	16,210	8,141	5,383	949	536	2,177	1,996	+4071
17	Zach Randolph Z. Randolph	488	1,116	31.0	16.6	9.1	1.8	0.7	0.3	6.7	14.1	47.1	0.2	0.7	27.3	3.1	4.1	76.4	52.2	2.9	6.2	2.1	34,615	18,578	10,208	2,049	834	301	2,290	2,629	-333
18	Jason Kidd J. Kidd	486	1,304	36.6	13.0	6.4	9.0	2.0	0.3	4.6	11.6	40.0	1.4	4.1	34.8	2.3	3.0	78.5	50.6	1.3	5.1	3.0	47,727	16,985	8,349	11,781	2,545	420	3,907	2,426	+3715
19	Andre Drummond A. Drummond	484	904	26.8	12.5	12.1	1.2	1.3	1.3	5.2	9.7	54.2	0.0	0.2	12.9	2.0	4.1	48.6	54.4	4.2	8.0	1.8	24,218	11,293	10,981	1,107	1,133	1,148	1,622	2,599	-817
20	Kevin Willis K. Willis	482	1,219	29.4	13.4	9.2	1.0	0.7	0.6	5.5	11.3	48.9	0.0	0.2	21.7	2.3	3.3	71.5	52.7	3.2	6.0	1.9	35,897	16,378	11,194	1,269	881	690	2,369	3,829	-458
21	Rudy Gobert R. Gobert	476	829	30.7	12.6	11.7	1.4	0.7	2.1	4.7	7.2	65.6	0.0	0.0	0.0	3.2	5.0	64.1	67.3	3.4	8.3	1.6	25,430	10,458	9,700	1,123	576	1,718	1,338	2,209	+3461
22	Anthony Davis A. Davis	470	787	34.4	24.1	10.7	2.6	1.3	2.3	9.0	17.3	52.2	0.5	1.6	29.6	5.6	7.0	79.4	59.2	2.7	8.0	2.0	27,081	18,978	8,416	2,009	1,033	1,815	1,573	1,840	+929
23	Kevin Love K. Love	468	952	28.9	16.2	10.0	2.3	0.6	0.4	5.3	12.2	43.8	1.8	4.8	36.9	3.8	4.6	82.8	57.1	2.3	7.6	1.8	27,503	15,421	9,497	2,172	577	368	1,679	1,841	+751
24	Dikembe Mutombo D. Mutombo	465	1,009	33.5	11.1	11.2	1.2	0.4	3.1	4.0	7.6	51.7	0.0	0.0	0.0	3.2	4.7	68.2	57.2	3.4	7.8	2.1	33,832	11,196	11,333	1,218	444	3,097	2,077	3,033	+1542
25	Magic Johnson M. Johnson	463	635	36.5	20.1	6.6	12.1	1.6	0.4	6.8	13.3	51.3	0.5	1.5	31.7	6.0	6.9	86.9	61.5	1.4	5.3	3.9	23,187	12,749	4,210	7,689	1,028	225	2,471	1,309