Tim Duncan and Kevin Garnett were tied for the most games with exactly 18 points and 8+ rebounds, with 57 games.

Interpreted as:

most regular-season games by a player with exactly 18 points and 8 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	Tim Duncan T. Duncan	57	1,026	675	34.8	18.0	11.8	3.3	0.6	2.3	7.1	14.7	48.5	0.1	0.1	37.5	3.7	5.4	67.9	52.6	3.2	8.6	2.5	1,983	189	37	132	144	156	+442
2	Kevin Garnett K. Garnett	57	1,026	679	36.5	18.0	11.9	4.1	1.6	1.7	7.3	15.5	47.3	0.1	0.4	18.2	3.3	4.1	80.7	52.2	2.6	9.3	2.2	2,083	231	92	97	127	144	+249
3	Zach Randolph Z. Randolph	55	990	639	35.1	18.0	11.6	1.6	0.7	0.1	7.3	15.9	46.2	0.1	0.6	16.1	3.2	4.3	75.6	50.6	3.9	7.7	2.4	1,931	90	36	6	130	142	+142
4	Dwight Howard D. Howard	50	900	690	36.2	18.0	13.8	1.7	0.9	2.8	6.3	11.3	55.7	0.0	0.1	16.7	5.4	9.3	58.3	58.5	4.0	9.8	3.3	1,810	85	45	140	164	160	+169
5	Robert Parish R. Parish	50	900	587	33.2	18.0	11.7	1.5			7.7	13.0	58.8	0.0	0.0		2.7	3.5	77.5	61.9				1,662	74				137
6	Pau Gasol P. Gasol	48	864	520	36.1	18.0	10.8	3.4	0.5	1.4	6.8	14.3	47.2	0.2	0.4	47.4	4.3	5.4	80.2	54.0	2.9	8.0	2.2	1,735	162	24	67	104	102	-30
7	Nikola Vučević N. Vučević	47	846	570	33.4	18.0	12.1	2.8	0.9	1.0	7.9	15.4	51.4	0.6	2.0	27.4	1.6	2.0	77.9	55.2	3.2	8.9	2.4	1,570	130	44	47	111	127	+75
8	Hakeem Olajuwon H. Olajuwon	45	810	537	36.5	18.0	11.9	2.5	1.8	3.8	7.3	16.4	44.5	0.0	0.1	16.7	3.4	5.0	68.0	48.4	3.4	8.5	2.8	1,642	111	83	173	125	168	+51
9	Patrick Ewing P. Ewing	44	792	485	34.6	18.0	11.0	1.7	0.8	2.4	7.1	14.9	47.9	0.0	0.1	25.0	3.7	5.3	69.4	52.2	2.5	8.6	2.9	1,523	75	36	106	126	141	+105
10	Buck Williams B. Williams	41	738	520	38.5	18.0	12.7	1.7	1.4	1.2	7.1	11.8	60.7	0.0	0.0		3.7	5.9	63.1	62.6	3.9	8.8	2.6	1,578	68	57	48	107	137
11	Vlade Divac V. Divac	39	702	491	37.2	18.0	12.6	3.5	1.7	2.0	7.3	14.2	51.4	0.2	0.7	27.6	3.2	4.7	68.5	55.5	4.3	8.3	2.7	1,450	137	65	77	104	146	+84
12	Shawn Kemp S. Kemp	39	702	473	33.3	18.0	12.1	2.1	1.5	1.5	6.6	13.5	49.3	0.1	0.2	50.0	4.6	6.7	69.3	54.9	3.7	8.4	3.5	1,299	83	60	57	136	162	+28
13	Domantas Sabonis D. Sabonis	38	684	509	34.1	18.0	13.4	6.3	1.1	0.6	7.3	13.2	55.1	0.4	1.6	27.1	3.0	4.2	71.3	59.6	3.3	10.1	2.6	1,297	240	41	21	98	133	+74
14	Charles Barkley C. Barkley	38	684	504	35.7	18.0	13.3	3.6	1.5	0.8	6.6	13.1	50.3	0.5	1.5	35.7	4.3	6.4	66.9	56.5	3.9	9.4	3.1	1,355	136	56	31	118	111	+31
15	Moses Malone M. Malone	38	684	469	34.4	18.0	12.3	1.2	0.7	1.2	5.7	12.8	44.7	0.0	0.1	0.0	6.5	8.6	75.8	54.1	5.3	7.0	2.8	1,308	45	26	46	105	89
16	Paul Millsap P. Millsap	37	666	351	32.4	18.0	9.5	3.0	1.7	1.1	6.7	12.6	52.9	0.5	1.6	33.9	4.1	5.3	77.9	60.2	3.0	6.5	2.2	1,201	111	63	41	83	114	+250
17	Chris Bosh C. Bosh	37	666	386	38.0	18.0	10.4	2.3	0.6	1.1	6.5	13.9	47.2	0.2	0.9	24.2	4.7	5.9	79.8	54.7	2.3	8.2	2.2	1,406	86	23	42	83	101	-7
18	Jonas Valančiūnas J. Valančiūnas	36	648	419	29.4	18.0	11.6	1.4	0.4	1.2	7.4	12.3	59.7	0.4	0.9	39.4	2.9	3.5	83.3	64.9	3.8	7.8	1.5	1,058	49	14	44	55	105	+151
19	Kevin Willis K. Willis	36	648	466	36.5	18.0	12.9	1.4	0.8	0.8	7.8	14.6	53.1	0.0	0.2	16.7	2.5	3.5	70.6	55.8	4.8	8.2	2.1	1,314	50	29	27	77	110	+12
20	Rudy Gobert R. Gobert	35	630	520	34.0	18.0	14.9	1.5	0.7	2.4	6.9	9.5	72.9	0.0	0.0		4.2	6.2	67.6	73.8	4.6	10.3	2.1	1,189	51	23	84	72	87	+403
21	LaMarcus Aldridge L. Aldridge	35	630	367	35.3	18.0	10.5	2.1	0.7	1.0	7.3	16.3	44.8	0.1	0.5	26.3	3.2	4.2	76.9	49.6	2.9	7.6	1.3	1,235	73	23	36	44	75	+136
22	Al Jefferson A. Jefferson	35	630	383	35.3	18.0	10.9	1.7	1.1	1.3	7.9	17.0	46.2	0.0	0.1	33.3	2.3	2.9	77.5	49.2	3.2	7.7	1.9	1,234	60	38	46	68	104	-39
23	Shawn Marion S. Marion	35	630	405	38.2	18.0	11.6	2.2	2.1	1.4	7.5	16.0	47.0	0.5	2.2	21.8	2.5	3.4	72.5	51.4	3.3	8.3	2.1	1,337	76	73	49	75	81	+53
24	Dikembe Mutombo D. Mutombo	34	612	487	40.3	18.0	14.3	1.6	0.6	3.9	6.4	11.6	55.1	0.0	0.0		5.2	7.1	73.9	61.2	5.1	9.3	2.7	1,371	54	22	133	91	106	+96
25	Alonzo Mourning A. Mourning	33	594	369	35.2	18.0	11.2	1.3	0.5	2.9	6.4	12.9	49.3	0.0	0.1	0.0	5.3	7.4	71.6	55.7	2.8	8.4	3.2	1,161	44	17	97	105	127	+47