Wilt Chamberlain had the most games by a player younger than 25 with 40+ points, with 67 games.

Interpreted as:

most 40 or more points regular-season game by a player before 25 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	67	3,110	47.9	46.4	28.3				19.0	35.9	53.0				8.3	15.1	55.2	54.5				3,210	1,897					122
2	Michael Jordan M. Jordan	52	2,358	41.4	45.3	5.6	5.2	3.1	1.7	16.6	30.2	54.8	0.1	0.8	12.5	12.1	13.7	88.5	62.6	2.2	3.5	3.2	2,154	293	269	160	89	168	159
3	Bob McAdoo B. McAdoo	47	2,062		43.9	15.4				17.1	28.7	59.5				9.7	12.0	80.6	64.5					723
4	Luka Dončić L. Dončić	41	1,828	39.0	44.6	9.5	9.5	1.6	0.4	15.2	26.5	57.2	4.7	10.4	45.1	9.6	12.0	79.4	70.1	0.9	8.6	3.9	1,599	390	390	64	15	160	114	+363
5	Kareem Abdul-Jabbar K. Abdul-Jabbar	38	1,703		44.8	16.7	4.3			17.7						9.3	12.8	73.0						636	165
6	LeBron James L. James	36	1,620	43.8	45.0	8.1	7.1	2.0	0.8	15.4	27.7	55.6	3.3	7.0	47.4	10.9	13.4	81.2	67.0	1.6	6.5	3.8	1,575	290	255	72	29	135	81	+268
7	Rick Barry R. Barry	35	1,600	44.0	45.7	10.3	4.1			16.3	33.4	48.9				13.0	14.6	89.1	57.4				1,541	362	142				124
8	Nate Archibald N. Archibald	32	1,431		44.7	3.3				16.6	29.1	56.9				11.6	13.4	86.7	63.9					104
9	Tracy McGrady T. McGrady	30	1,342	41.9	44.7	7.8	4.9	1.8	1.0	15.8	29.8	53.0	3.5	7.3	48.4	9.6	12.4	77.2	63.4	2.1	5.7	3.0	1,258	234	146	55	29	89	58	+126
10	Trae Young T. Young	29	1,275	38.0	44.0	4.3	9.0	0.9	0.2	13.9	25.3	55.0	5.2	10.8	48.1	11.0	12.2	89.6	71.7	0.7	3.6	5.0	1,102	124	261	26	5	144	51	+170
11	Kevin Durant K. Durant	27	1,159	43.3	42.9	9.3	3.1	1.3	1.3	14.4	24.9	57.7	3.1	6.4	48.0	11.1	12.2	90.9	70.8	1.3	8.0	3.3	1,170	250	84	34	36	89	68	+176
12	Kobe Bryant K. Bryant	27	1,209	43.4	44.8	5.5	4.2	1.8	1.0	16.0	31.4	50.8	2.5	5.3	46.5	10.4	11.8	87.8	61.2	1.1	4.4	3.5	1,171	148	114	49	26	95	67	+235
13	Gilbert Arenas G. Arenas	25	1,096	42.8	43.8	4.0	5.3	2.0	0.2	13.7	25.6	53.7	4.6	9.4	48.7	11.8	14.3	82.6	68.8	1.0	3.0	3.9	1,070	100	133	50	5	97	84	+126
14	Anthony Edwards A. Edwards	23	1,014	38.7	44.1	5.9	4.0	1.7	0.9	14.8	27.2	54.6	6.0	12.4	47.9	8.5	10.3	82.3	69.5	1.0	4.9	3.6	890	135	92	38	20	82	47	+223
15	Anthony Davis A. Davis	23	1,020	40.9	44.3	14.6	2.6	2.1	2.4	16.3	28.0	58.4	1.5	3.2	46.6	10.2	12.0	85.1	66.7	3.8	10.8	2.0	941	336	59	49	56	47	56	+206
16	Shaquille O'Neal S. O'Neal	22	945	41.8	43.0	14.7	2.0	0.8	2.4	17.4	26.9	64.5	0.0	0.0	0.0	8.2	13.8	59.5	65.1	6.0	8.8	2.5	920	324	45	18	53	55	57	+14
17	Oscar Robertson O. Robertson	22	933		42.4	12.1	11.2			15.7						11.0	13.1	84.4						267	246				84
18	Walt Bellamy W. Bellamy	21	936		44.6	20.9				17.7						9.1	12.3	74.1						439					80
19	Jayson Tatum J. Tatum	20	902	38.4	45.1	7.6	4.2	1.1	0.8	14.9	24.9	59.6	5.7	10.3	55.6	9.7	10.9	89.4	76.0	0.9	6.7	2.2	768	151	84	22	15	43	45	+284
20	Elvin Hayes E. Hayes	17	721		42.4	18.1				16.9	31.2	54.2				8.6	11.9	72.4	58.2					308					49
21	Allen Iverson A. Iverson	16	699	44.0	43.7	4.8	5.5	1.4	0.1	15.6	30.3	51.5	2.7	6.4	41.7	9.8	12.8	76.5	60.8	1.8	2.9	3.9	704	76	88	23	2	63	47	-16
22	Devin Booker D. Booker	14	649	38.8	46.4	5.9	6.1	1.1	0.6	15.9	27.3	58.1	3.5	8.1	43.4	11.1	12.3	90.7	70.9	1.0	4.9	4.4	543	82	85	15	9	61	44	+55
23	Jerry West J. West	14	637		45.5					16.4						12.6	15.4	82.3											32
24	John Drew J. Drew	13	559	38.8	43.0	12.8	2.5			15.2	26.2	57.9				12.7	16.7	76.0	64.2				504	167	32				53
25	Bob Pettit B. Pettit	13	563		43.3					15.4						12.5	15.5	80.7											42