Karl Malone had the most games by a player in his first 18 seasons, with 1,434 games.

Interpreted as:

most regular-season games by a player in first 18 seasons

	NAME	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	Karl Malone K. Malone	1,434	37.3	25.4	10.2	3.5	1.4	0.8	9.3	18.0	51.7	0.1	0.2	27.5	6.7	9.0	74.2	57.7	2.4	7.7	3.1	53,479	36,374	14,601	5,085	2,035	1,125	4,421	4,462	+2791
2	John Stockton J. Stockton	1,422	32.0	13.2	2.7	10.7	2.2	0.2	4.7	9.2	51.7	0.6	1.5	38.5	3.2	3.9	82.6	61.0	0.6	2.1	2.9	45,489	18,827	3,850	15,177	3,128	299	4,062	3,758	+2700
3	Robert Parish R. Parish	1,413	30.3	15.9	9.9	1.5	0.8	1.6	6.6	12.1	54.0	0.0	0.0	0.0	2.8	3.9	72.2	57.5	3.1	6.8	2.3	42,860	22,494	13,973	2,085	1,165	2,252	3,039	4,191
4	Kareem Abdul-Jabbar K. Abdul-Jabbar	1,406	38.0	25.9	11.8	3.9	1.0	2.8	10.7	19.0	56.2	0.0	0.0	7.1	4.5	6.3	72.0	59.5	2.5	8.1	2.9	53,443	36,474	16,628	5,451	1,074	3,012	2,273	4,245
5	Reggie Miller R. Miller	1,389	34.3	18.2	3.0	3.0	1.1	0.2	5.9	12.6	47.1	1.8	4.7	39.5	4.5	5.1	88.8	61.4	0.6	2.4	1.7	47,619	25,279	4,182	4,141	1,505	299	2,409	2,730	+2015
6	Clifford Robinson C. Robinson	1,380	30.8	14.2	4.6	2.2	1.0	1.0	5.4	12.2	43.8	0.9	2.5	35.6	2.6	3.7	68.9	51.2	1.3	3.2	1.8	42,561	19,591	6,306	3,094	1,402	1,390	2,502	4,175	+704
7	Jason Terry J. Terry	1,359	30.3	13.8	2.4	3.9	1.1	0.2	5.0	11.4	44.4	1.6	4.3	38.0	2.0	2.4	84.5	55.5	0.4	2.0	1.8	41,220	18,715	3,226	5,356	1,561	262	2,390	2,525	+1699
8	Kevin Willis K. Willis	1,342	28.0	12.7	8.7	1.0	0.7	0.5	5.2	10.7	48.8	0.0	0.1	21.4	2.2	3.1	71.4	52.6	3.0	5.7	1.8	37,602	16,990	11,719	1,307	927	734	2,471	4,047	-692
9	Dirk Nowitzki D. Nowitzki	1,340	35.3	22.0	7.9	2.5	0.8	0.9	7.8	16.4	47.4	1.3	3.3	38.1	5.2	5.9	87.9	58.0	1.1	6.8	1.8	47,249	29,491	10,540	3,414	1,128	1,180	2,374	3,266	+6677
10	Gary Payton G. Payton	1,335	35.3	16.3	3.9	6.7	1.8	0.2	6.5	14.0	46.6	0.8	2.7	31.7	2.4	3.4	72.9	52.8	1.0	2.9	2.3	47,117	21,813	5,269	8,966	2,445	285	3,030	3,217	+1928
11	Tim Duncan T. Duncan	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
12	Kevin Garnett K. Garnett	1,323	36.1	19.1	10.5	3.9	1.3	1.5	7.7	15.4	49.8	0.1	0.5	27.9	3.6	4.6	79.0	54.9	2.3	8.1	2.3	47,801	25,274	13,843	5,224	1,742	1,970	3,048	3,259	+4908
13	Paul Pierce P. Pierce	1,318	34.6	20.0	5.7	3.6	1.3	0.6	6.6	14.7	44.5	1.6	4.4	36.9	5.2	6.5	80.7	56.8	0.8	4.8	2.7	45,603	26,316	7,479	4,698	1,748	740	3,516	3,603	+3317
14	Jason Kidd J. Kidd	1,315	36.6	13.0	6.4	9.0	1.9	0.3	4.6	11.5	40.1	1.4	4.1	34.9	2.3	3.0	78.4	50.6	1.3	5.1	3.0	48,068	17,071	8,402	11,842	2,559	425	3,927	2,447	+3681
15	Moses Malone M. Malone	1,312	34.2	20.9	12.3	1.4	0.8	1.3	7.2	14.6	49.1	0.0	0.1	9.0	6.5	8.4	76.9	56.9	5.1	7.2	3.1	44,922	27,360	16,166	1,790	1,087	1,730	3,793	3,061
16	LeBron James L. James	1,310	38.2	27.0	7.4	7.4	1.6	0.7	9.8	19.5	50.4	1.5	4.4	34.5	5.8	7.9	73.3	58.6	1.2	6.3	3.5	50,056	35,367	9,751	9,696	2,063	982	4,592	2,395	+7126
17	Buck Williams B. Williams	1,307	32.5	12.8	10.0	1.3	0.8	0.8	4.9	8.9	54.9	0.0	0.0	16.7	3.0	4.6	66.4	58.7	3.5	6.5	2.1	42,464	16,784	13,017	1,646	1,080	1,100	2,784	4,267	+155
18	Andre Miller A. Miller	1,304	30.9	12.5	3.7	6.5	1.2	0.2	4.6	10.0	46.1	0.1	0.7	21.7	3.1	3.8	80.7	53.2	1.1	2.6	2.4	40,268	16,278	4,795	8,524	1,546	227	3,121	2,882	+810
19	Elvin Hayes E. Hayes	1,303	38.4	21.0	12.5	1.8	1.0	2.0	8.4	18.6	45.2	0.0	0.1	14.7	4.1	6.1	67.0	49.1	3.1	7.8	2.4	50,000	27,313	16,279	2,398	864	1,771	1,358	4,193
20	Ray Allen R. Allen	1,300	35.6	18.9	4.1	3.4	1.1	0.2	6.6	14.6	45.2	2.3	5.7	40.0	3.4	3.8	89.4	58.0	0.9	3.1	2.1	46,344	24,505	5,272	4,361	1,451	244	2,709	2,858	+3491
21	Mark Jackson M. Jackson	1,296	30.2	9.6	3.8	8.0	1.2	0.1	3.7	8.3	44.7	0.6	1.7	33.2	1.7	2.2	77.0	52.2	1.0	2.8	2.4	39,121	12,489	4,963	10,334	1,608	117	3,155	2,230	+402
22	Derek Fisher D. Fisher	1,287	25.4	8.3	2.1	3.0	1.1	0.1	2.9	7.2	39.9	1.0	2.6	37.4	1.6	1.9	81.7	51.4	0.3	1.7	1.1	32,719	10,713	2,658	3,804	1,352	98	1,473	2,684	+4164
23	Sam Perkins S. Perkins	1,286	28.5	11.9	6.0	1.5	0.9	0.7	4.3	9.3	45.9	0.7	1.8	36.2	2.7	3.3	81.1	55.2	1.8	4.2	1.2	36,598	15,324	7,666	1,975	1,105	933	1,586	3,177	+1069
24	A.C. Green	1,278	28.6	9.6	7.4	1.1	0.8	0.4	3.6	7.2	49.4	0.1	0.4	25.4	2.4	3.3	73.4	55.7	2.6	4.8	1.1	36,552	12,331	9,473	1,400	1,033	546	1,434	2,436	-378
25	Joe Johnson J. Johnson	1,277	34.6	16.0	4.0	3.9	0.8	0.2	6.1	13.9	44.1	1.5	4.2	37.1	2.2	2.7	80.2	53.0	0.8	3.1	1.9	44,236	20,407	5,059	5,001	1,071	260	2,451	2,252	+828