Wilt Chamberlain had the most games by a player younger than 27 with 30+ points, with 276 games.

Interpreted as:

most 30 or more point regular-season game before turning 27 years old by a player

	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	276	12,524	47.9	45.4	26.4				18.3	35.9	50.9				8.8	15.0	58.6	53.4				13,233	7,298					475
2	LeBron James L. James	260	9,309	42.2	35.8	7.7	6.9	1.9	0.9	12.6	24.0	52.7	2.1	5.4	38.7	8.5	11.1	76.6	62.1	1.4	6.3	3.5	10,967	2,002	1,792	482	223	918	552	+1466
3	Michael Jordan M. Jordan	243	9,353	40.7	38.5	6.7	5.9	3.0	1.2	14.0	26.3	53.4	0.3	1.2	27.0	10.1	11.7	86.1	61.2	2.1	4.6	3.3	9,888	1,633	1,438	719	292	797	754
4	Oscar Robertson O. Robertson	222	7,917		35.7					12.6						10.5	12.5	84.3											753
5	Luka Dončić L. Dončić	221	8,048	37.0	36.4	9.4	8.9	1.4	0.5	12.3	23.8	51.6	4.1	10.1	40.8	7.8	10.0	77.7	64.6	1.0	8.3	4.0	8,183	2,072	1,968	312	116	891	547	+1133
6	Kevin Durant K. Durant	217	7,621	40.9	35.1	7.8	3.8	1.3	0.9	11.6	21.9	52.7	2.4	5.4	43.4	9.6	10.8	89.1	65.8	0.9	6.8	3.4	8,883	1,682	834	283	202	748	490	+1077
7	Kareem Abdul-Jabbar K. Abdul-Jabbar	207	7,617		36.8	16.3			3.6	15.3						6.2	8.9	69.4						3,378			121
8	Bob McAdoo B. McAdoo	204	7,417		36.4					14.3						7.8	10.0	78.1
9	Shai Gilgeous-Alexander S. Gilgeous-Alexander	178	6,186	35.6	34.8	5.3	6.2	1.8	1.0	12.0	21.8	55.1	1.7	4.1	41.3	9.1	10.2	88.3	66.1	0.8	4.5	2.5	6,330	948	1,096	319	176	442	470	+1376
10	Carmelo Anthony C. Anthony	170	5,843	39.4	34.4	7.0	3.2	1.3	0.6	12.2	23.3	52.4	1.1	2.8	39.4	8.8	10.4	84.3	61.5	2.2	4.8	2.9	6,703	1,194	545	222	100	501	545	+853
11	Tracy McGrady T. McGrady	167	6,078	41.6	36.4	7.4	5.5	1.8	0.9	12.9	26.5	48.6	2.7	6.3	42.3	7.9	10.0	79.2	58.9	1.8	5.6	2.6	6,948	1,241	916	295	151	433	348	+915
12	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
13	Devin Booker D. Booker	162	5,767	37.1	35.6	4.6	5.4	0.9	0.3	12.6	23.6	53.4	3.1	7.2	43.5	7.3	8.3	87.8	65.4	0.6	4.0	3.3	6,017	750	868	146	49	530	511	+606
14	Jayson Tatum J. Tatum	157	5,540	37.4	35.3	8.4	4.6	1.2	0.7	12.0	22.8	52.8	4.4	9.9	44.7	6.8	8.1	84.5	67.0	0.9	7.6	2.5	5,867	1,324	728	190	110	399	360	+1638
15	Walt Bellamy W. Bellamy	157	5,519		35.2					13.6						8.0	11.7	67.9
16	Allen Iverson A. Iverson	156	5,735	43.3	36.8	4.6	5.4	2.4	0.2	13.0	27.5	47.1	1.9	5.0	37.6	9.0	11.3	79.5	56.6	1.2	3.4	3.7	6,756	713	850	377	31	580	354	+718
17	Kobe Bryant K. Bryant	151	5,497	42.0	36.4	6.1	5.0	1.7	0.7	12.7	25.3	50.5	1.8	4.6	40.6	9.1	10.6	85.1	60.8	1.6	4.5	3.3	6,336	921	751	264	108	502	432	+973
18	Shaquille O'Neal S. O'Neal	150	5,286	39.2	35.2	12.9	2.5	0.8	2.7	14.2	22.8	62.3	0.0	0.0	16.7	6.9	12.3	55.9	62.5	4.5	8.4	2.9	5,881	1,929	380	115	409	432	465	+333
19	Anthony Davis A. Davis	147	5,279	38.8	35.9	12.6	2.6	1.5	2.5	13.3	23.4	56.6	1.0	2.6	38.2	8.4	10.1	82.9	64.4	3.0	9.6	2.1	5,709	1,845	377	225	370	308	368	+713
20	Adrian Dantley A. Dantley	146	5,175		35.4					13.0			0.0			9.3	11.3	82.7
21	Giannis Antetokounmpo G. Antetokounmpo	145	5,034	35.2	34.7	12.2	5.4	1.4	1.5	12.7	21.3	59.3	1.2	3.7	32.5	8.2	11.2	72.9	66.0	2.3	9.8	3.3	5,104	1,763	789	205	217	477	442	+1128
22	Jerry West J. West	144	5,175		35.9					13.0						10.0	12.2	81.5
23	Elvin Hayes E. Hayes	134	4,723		35.2					14.1						7.0	10.1	69.1
24	Nate Archibald N. Archibald	132	4,817		36.5	2.9				13.3	25.8	51.8				9.8	11.5	85.3	59.2					379
25	Karl Malone K. Malone	127	4,504	40.0	35.5	12.1	2.8	1.6	0.7	12.9	22.1	58.5	0.1	0.3	38.5	9.5	12.4	76.3	64.3	3.5	8.6	3.5	5,076	1,543	352	199	86	447	433