Dwight Howard had the most games with 20+ points and 20+ rebounds, with 51 games.

Interpreted as:

most regular-season games by a player with 20 or more points and 20 or more rebounds

	NAME	GP	PTS	REB	MPG	PPG	RPG	APG	SPG	BPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TPG	MIN	AST	STL	BLK	TOV	PF	+/-
1	Dwight Howard D. Howard	51	1,284	1,117	39.4	25.2	21.9	1.7	1.1	2.4	8.9	14.9	60.0	0.0	0.2	11.1	7.3	12.8	57.2	61.4	6.6	15.3	3.4	2,011	89	58	121	172	151	+434
2	Andre Drummond A. Drummond	45	1,105	995	38.4	24.6	22.1	2.2	1.8	1.9	10.2	16.9	60.2	0.0	0.4	5.9	4.2	7.2	58.4	61.2	7.4	14.7	2.7	1,729	98	82	87	121	148	+229
3	Hakeem Olajuwon H. Olajuwon	42	1,195	896	41.4	28.5	21.3	2.8	2.4	4.3	11.2	21.5	52.1	0.0	0.1	0.0	6.1	9.0	67.8	56.0	6.6	14.7	3.7	1,738	117	101	182	156	165	+24
4	Charles Barkley C. Barkley	41	1,213	901	43.3	29.6	22.0	4.6	1.9	1.3	10.4	17.5	59.4	0.6	1.9	29.1	8.3	11.0	75.1	66.3	8.0	14.0	4.6	1,776	187	79	53	189	133	+21
5	Shaquille O'Neal S. O'Neal	34	1,077	740	42.6	31.7	21.8	2.5	0.4	3.7	12.5	20.9	59.9	0.0	0.0	0.0	6.6	11.9	55.4	60.5	7.2	14.5	3.4	1,447	84	12	127	114	111	+160
6	Moses Malone M. Malone	31	931	681	40.3	30.0	22.0	1.5		2.2	9.7	20.9	46.4	0.0	0.1	0.0	10.6	13.1	81.0	56.2	9.0	13.0		1,248	46		67		84
7	Kevin Garnett K. Garnett	27	715	580	41.8	26.5	21.5	5.6	1.0	1.9	10.3	20.6	50.1	0.3	0.8	31.8	5.6	6.7	83.5	56.3	5.2	16.3	2.7	1,130	150	26	51	74	80	+152
8	Kevin Willis K. Willis	23	617	522	43.1	26.8	22.7	1.8	1.0	0.8	10.7	20.6	51.9	0.3	0.8	38.9	5.1	6.8	75.2	56.8	8.0	14.7	2.5	992	42	22	18	58	65
9	Tim Duncan T. Duncan	22	599	470	42.5	27.2	21.4	3.2	0.7	2.9	10.1	20.3	49.9	0.1	0.4	37.5	6.8	10.5	65.2	54.6	6.4	15.0	3.0	936	71	15	64	67	57	+77
10	Patrick Ewing P. Ewing	19	568	414	41.9	29.9	21.8	3.3	1.3	4.0	11.4	22.0	51.7	0.1	0.2	33.3	7.1	9.7	73.4	56.9	5.5	16.3	3.1	796	62	24	76	59	71	+15
11	Nikola Jokić N. Jokić	17	523	365	38.2	30.8	21.5	10.5	1.7	0.9	11.8	23.2	50.8	1.3	3.9	32.8	5.9	7.2	82.1	58.4	5.3	16.2	3.8	650	179	29	16	64	48	+125
12	Karl-Anthony Towns K. Towns	16	463	346	37.7	28.9	21.6	3.6	0.8	1.0	10.9	18.1	60.0	2.2	4.3	50.7	5.0	6.0	83.3	69.7	4.7	16.9	3.5	603	57	12	16	56	55	+161
13	DeMarcus Cousins D. Cousins	16	516	337	40.1	32.3	21.1	5.1	1.4	2.3	11.9	23.4	51.1	1.0	2.9	34.0	7.4	10.4	71.1	57.7	5.4	15.7	4.4	642	82	23	37	71	61	+70
14	Kevin Love K. Love	16	417	356	40.6	26.1	22.3	2.6	0.8	1.0	8.6	18.5	46.6	1.3	3.8	35.0	7.5	8.9	84.5	58.2	6.7	15.6	2.3	649	41	12	16	36	32	+37
15	Buck Williams B. Williams	16	383	335	42.6	23.9	20.9	1.8	1.0	1.6	9.1	15.4	59.3	0.0	0.0		5.7	8.1	70.5	63.3	6.9	14.1	3.3	682	29	16	26	52	58
16	Bill Laimbeer B. Laimbeer	15	413	321	41.9	27.5	21.4	2.3	0.9	1.6	10.9	18.5	58.6	0.5	1.1	50.0	5.3	6.1	85.9	64.8	5.9	15.5	1.9	628	34	13	24	28	57
17	Domantas Sabonis D. Sabonis	14	340	315	39.0	24.3	22.5	6.6	0.8	0.9	9.8	15.7	62.3	0.9	1.8	48.0	3.9	5.7	67.5	66.6	6.6	15.9	3.6	547	92	11	12	51	40	+103
18	Hassan Whiteside H. Whiteside	13	322	272	33.9	24.8	20.9	0.7	0.5	3.0	10.6	16.8	63.3	0.2	0.3	50.0	3.4	5.4	62.9	64.7	7.1	13.8	2.3	440	9	7	39	30	34	+61
19	Anthony Davis A. Davis	13	472	284	40.5	36.3	21.8	3.2	1.3	2.5	12.9	23.0	56.2	1.2	2.8	44.4	9.2	10.8	85.1	65.4	6.2	15.7	2.8	527	42	17	33	36	29	+124
20	David Robinson D. Robinson	13	368	278	41.2	28.3	21.4	3.0	1.6	4.8	10.2	19.5	52.6	0.0	0.1	0.0	7.8	11.0	71.3	58.2	7.3	14.1	3.4	535	39	21	62	44	40	+24
21	Zach Randolph Z. Randolph	12	324	253	40.9	27.0	21.1	1.9	1.3	0.5	10.6	20.9	50.6	0.1	0.8	11.1	5.8	6.9	83.1	56.3	8.3	12.8	1.9	491	23	16	6	23	30	+92
22	Rony Seikaly R. Seikaly	12	295	255	42.5	24.6	21.3	1.4	0.8	2.0	8.6	16.8	51.2	0.0	0.1	0.0	7.4	10.5	70.6	57.5	6.7	14.6	3.2	510	17	10	24	38	37
23	Karl Malone K. Malone	12	350	253	44.5	29.2	21.1	4.7	1.9	1.2	10.3	24.0	42.7	0.2	0.4	40.0	8.5	10.9	77.9	50.6	6.6	14.5	3.3	534	56	23	14	39	37	+12
24	Clint Capela C. Capela	11	266	248	38.3	24.2	22.5	1.1	1.3	2.2	10.3	15.8	64.9	0.0	0.0		3.6	6.3	58.0	65.1	9.0	13.5	1.2	421	12	14	24	13	23	+90
25	Giannis Antetokounmpo G. Antetokounmpo	10	341	205	37.9	34.1	20.5	6.8	0.9	1.2	11.8	22.7	52.0	0.7	2.5	28.0	9.8	14.8	66.2	58.4	4.5	16.0	5.1	379	68	9	12	51	32	+109