Wilt Chamberlain had the most games by a player younger than 26 with 40+ points, with 130 games.

Interpreted as:

most 40 or more point regular-season games before turning 26 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	130	6,544	48.3	50.3	27.1				20.4	38.8	52.4				9.6	16.3	59.0	54.7				6,279	3,525					224
2	Michael Jordan M. Jordan	74	3,397	41.5	45.9	6.1	5.4	3.2	1.5	16.8	29.6	56.8	0.2	1.1	19.0	12.1	13.8	87.4	64.3	2.1	4.0	3.2	3,074	454	398	240	113	240	229
3	Bob McAdoo B. McAdoo	52	2,270		43.7	15.8				17.0	28.5	59.7				9.7	12.1	80.3	64.6					820
4	Kareem Abdul-Jabbar K. Abdul-Jabbar	45	2,012		44.7	17.2	4.3			18.1						8.5	11.8	72.2						776	193
5	Luka Dončić L. Dončić	44	1,960	38.9	44.5	9.6	9.4	1.6	0.4	15.2	26.5	57.3	4.8	10.6	45.5	9.4	11.8	79.2	70.3	0.9	8.7	3.8	1,712	423	414	69	18	169	120	+381
6	LeBron James L. James	42	1,881	43.8	44.8	8.4	7.3	2.0	0.9	15.3	27.6	55.5	3.2	7.1	45.6	10.9	13.5	80.7	66.7	1.5	6.8	3.7	1,841	351	307	85	39	156	89	+301
7	Kevin Durant K. Durant	41	1,784	43.2	43.5	8.4	4.0	1.4	1.2	14.4	25.8	55.7	3.3	7.2	46.6	11.4	13.0	88.2	69.1	1.0	7.4	3.5	1,773	343	164	57	48	143	97	+233
8	Tracy McGrady T. McGrady	36	1,605	42.3	44.6	8.0	5.0	1.9	1.0	15.7	29.5	53.3	3.6	7.3	48.9	9.6	12.5	76.9	63.7	2.1	5.9	2.9	1,522	289	180	70	36	103	73	+181
9	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
10	Trae Young T. Young	33	1,444	38.1	43.8	4.2	9.2	1.1	0.2	13.7	25.4	54.0	5.2	11.0	47.0	11.2	12.6	88.5	70.6	0.8	3.5	4.8	1,256	139	305	36	5	158	55	+146
11	Allen Iverson A. Iverson	33	1,460	44.6	44.2	4.4	4.8	2.1	0.2	15.8	31.1	51.0	2.4	5.6	41.9	10.2	12.5	81.2	60.4	1.4	3.0	3.7	1,471	145	157	70	8	123	86	+127
12	Nate Archibald N. Archibald	33	1,473		44.6	3.3		5.0		16.5	28.9	57.2				11.5	13.3	86.8	64.1	1.0	3.0			108		5
13	Oscar Robertson O. Robertson	33	1,416		42.9	11.2	11.0			15.5						12.0	13.9	86.1						370	364				126
14	Anthony Davis A. Davis	30	1,323	40.6	44.1	14.3	2.9	2.1	2.2	16.2	28.1	57.6	1.3	3.2	42.1	10.4	12.1	85.4	65.9	3.9	10.3	1.9	1,219	428	86	62	66	56	77	+228
15	Kobe Bryant K. Bryant	30	1,338	43.2	44.6	5.7	4.3	1.9	0.9	15.8	31.0	51.0	2.4	5.4	45.1	10.6	12.0	88.1	61.5	1.3	4.5	3.3	1,296	172	130	58	28	100	71	+246
16	Gilbert Arenas G. Arenas	28	1,232	42.7	44.0	4.1	5.4	2.0	0.2	13.6	25.5	53.5	4.7	9.6	48.9	12.0	14.4	83.6	69.1	1.0	3.1	3.9	1,195	114	152	56	6	109	95	+145
17	Jayson Tatum J. Tatum	25	1,113	38.9	44.5	8.0	4.2	1.0	0.7	14.5	25.0	58.0	5.8	10.8	54.3	9.6	10.8	89.6	74.8	0.8	7.2	2.0	973	201	104	25	18	51	55	+343
18	Shaquille O'Neal S. O'Neal	24	1,031	41.4	43.0	14.5	2.1	0.9	2.4	17.3	27.2	63.8	0.0	0.1	0.0	8.3	13.8	60.3	64.7	5.9	8.6	2.6	994	348	50	22	57	63	64	+29
19	Elvin Hayes E. Hayes	23	984		42.8	18.7				16.8	31.9	52.8				9.1	12.5	72.9	57.2					431					60
20	Walt Bellamy W. Bellamy	23	1,017		44.2					17.7						8.9	12.2	73.2
21	Anthony Edwards A. Edwards	20	886	38.1	44.3	5.9	4.0	1.6	0.9	14.8	27.1	54.4	6.1	12.6	48.2	8.8	10.5	83.7	69.9	1.1	4.8	3.6	762	118	80	31	17	71	38	+224
22	Jerry West J. West	20	891		44.6					15.9						12.8	15.4	83.1											56
23	Devin Booker D. Booker	18	830	38.5	46.1	5.9	6.1	1.2	0.6	16.1	27.6	58.3	3.4	7.9	42.7	10.6	11.8	89.7	70.4	0.8	5.1	3.8	693	107	109	22	10	69	56	+87
24	Carmelo Anthony C. Anthony	17	736	42.0	43.3	7.4	3.1	1.7	0.6	15.7	27.2	57.7	1.6	3.4	49.1	10.2	11.9	86.1	66.7	2.5	4.9	2.6	714	126	52	29	10	45	65	+86
25	Mark Aguirre M. Aguirre	16	685	39.3	42.8	6.2	3.2	0.9	0.6	16.7	28.7	58.2	0.8	1.9	43.3	8.6	10.6	81.2	64.2	2.8	3.4	2.3	628	99	51	15	10	37	55