Wilt Chamberlain had the most games by a player younger than 28 with 30+ points, with 339 games.

Interpreted as:

most 30 or more points regular-season game by a player before turning 28 years old

	NAME	GP	PTS	MPG	PPG	RPG	APG	SPG	BPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TPG	MIN	REB	AST	STL	BLK	TOV	PF	+/-
1	Wilt Chamberlain W. Chamberlain	339	15,061	47.7	44.4	25.8				17.9	35.0	51.3				8.5	14.7	57.8	53.6				16,169	8,738					624
2	Michael Jordan M. Jordan	295	11,267	40.4	38.2	6.7	6.0	3.0	1.1	14.0	26.1	53.8	0.4	1.3	28.9	9.7	11.3	86.1	61.5	2.0	4.7	3.2	11,907	1,986	1,757	885	338	938	912
3	LeBron James L. James	289	10,284	41.9	35.6	7.7	6.8	1.9	0.9	12.6	23.7	53.1	2.0	5.2	39.2	8.4	10.9	76.8	62.4	1.4	6.3	3.5	12,112	2,219	1,977	535	247	1,020	597	+1605
4	Oscar Robertson O. Robertson	269	9,633		35.8					12.6						10.6	12.6	84.2											894
5	Kevin Durant K. Durant	246	8,585	40.6	34.9	8.0	4.0	1.3	1.0	11.5	22.0	52.5	2.5	5.8	43.0	9.3	10.5	89.2	65.6	0.9	7.1	3.5	9,992	1,963	983	315	241	862	562	+1302
6	Kareem Abdul-Jabbar K. Abdul-Jabbar	236	8,681		36.8	16.1			3.4	15.3						6.1	8.7	70.3						3,811			215
7	Bob McAdoo B. McAdoo	222	8,046		36.2					14.3						7.7	10.0	77.6
8	Luka Dončić L. Dončić	210	7,648	37.0	36.4	9.4	8.9	1.4	0.5	12.3	23.8	51.9	4.1	10.0	41.1	7.6	9.9	77.3	64.8	1.1	8.4	4.0	7,765	1,975	1,869	295	107	842	515	+1056
9	Kobe Bryant K. Bryant	207	7,754	41.9	37.5	6.0	4.8	1.7	0.6	13.0	26.3	49.4	2.1	5.2	39.6	9.4	11.0	85.3	60.1	1.4	4.6	3.3	8,667	1,235	993	362	127	677	610	+1284
10	Allen Iverson A. Iverson	192	6,986	43.6	36.4	4.5	5.5	2.6	0.2	12.8	27.3	46.9	1.8	4.8	37.3	9.0	11.3	79.7	56.4	1.1	3.4	3.7	8,369	864	1,049	490	37	702	414	+887
11	Tracy McGrady T. McGrady	190	6,876	41.1	36.2	7.2	5.6	1.7	0.9	12.8	26.4	48.6	2.7	6.4	42.1	7.9	10.0	78.8	58.8	1.7	5.5	2.7	7,810	1,368	1,058	326	162	508	393	+1088
12	Devin Booker D. Booker	187	6,702	37.1	35.8	4.6	5.4	0.9	0.3	12.7	23.5	54.0	3.2	7.3	44.0	7.3	8.3	88.2	66.1	0.6	4.0	3.2	6,930	867	1,015	166	63	597	580	+804
13	Shai Gilgeous-Alexander S. Gilgeous-Alexander	185	6,428	35.5	34.7	5.3	6.2	1.8	1.0	12.0	21.8	55.1	1.7	4.2	40.8	9.1	10.3	88.4	66.1	0.8	4.6	2.5	6,575	984	1,141	326	187	455	484	+1437
14	Giannis Antetokounmpo G. Antetokounmpo	184	6,427	34.9	34.9	12.1	5.5	1.3	1.4	12.7	21.3	59.4	1.2	3.6	32.0	8.4	11.6	72.9	66.1	2.3	9.8	3.3	6,420	2,228	1,012	246	264	601	578	+1389
15	Carmelo Anthony C. Anthony	184	6,351	39.4	34.5	7.1	3.3	1.3	0.6	12.3	23.6	52.0	1.2	3.1	40.0	8.7	10.4	84.3	61.3	2.2	4.9	3.0	7,253	1,313	598	246	107	548	591	+864
16	Shaquille O'Neal S. O'Neal	184	6,444	39.4	35.0	13.1	2.7	0.7	2.8	14.1	22.8	61.9	0.0	0.0	16.7	6.8	12.3	55.4	62.2	4.5	8.6	2.8	7,257	2,403	491	137	519	523	570	+660
17	Jerry West J. West	183	6,639		36.3					12.9						10.5	12.6	82.9
18	Adrian Dantley A. Dantley	171	6,108		35.7					13.1			0.0			9.5	11.5	82.7
19	Karl Malone K. Malone	168	5,898	40.2	35.1	12.3	2.8	1.5	0.8	12.7	21.8	58.2	0.1	0.3	34.7	9.6	12.4	77.0	64.3	3.4	8.9	3.4	6,761	2,069	475	245	131	569	560
20	Trae Young T. Young	164	5,828	36.8	35.5	3.8	10.1	1.1	0.2	11.2	22.7	49.5	4.1	9.6	42.7	9.0	10.2	88.2	65.4	0.7	3.1	4.4	6,041	629	1,659	177	30	724	299	+777
21	Jayson Tatum J. Tatum	162	5,710	37.5	35.2	8.4	4.7	1.2	0.7	12.0	22.8	52.7	4.4	9.9	44.4	6.8	8.0	84.6	66.9	0.9	7.6	2.6	6,070	1,367	760	197	114	415	371	+1691
22	James Harden J. Harden	162	5,803	38.6	35.8	6.4	7.7	1.8	0.6	10.5	20.8	50.7	3.8	8.6	43.9	10.9	12.6	86.8	68.0	1.0	5.5	4.5	6,256	1,044	1,253	285	91	733	430	+1107
23	Walt Bellamy W. Bellamy	162	5,683		35.1					13.6						7.9	11.6	67.9
24	Anthony Davis A. Davis	153	5,491	38.7	35.9	12.4	2.6	1.5	2.5	13.2	23.4	56.5	1.0	2.6	38.8	8.4	10.1	82.8	64.3	3.0	9.4	2.1	5,926	1,896	397	235	375	321	383	+731
25	Nate Archibald N. Archibald	148	5,348		36.1	2.9				13.2	25.4	51.9				9.7	11.5	84.9	59.3					431