Rick Barry had the most games by a 22-year-old player with 50+ points, with 6 games.

Interpreted as:

most 50 or more points regular-season game by a player as a 22 year 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	Rick Barry R. Barry	6	309	45.7	51.5	9.8	4.7			18.8	39.0	48.3				13.8	15.5	89.2	56.2				274	59	28				17
2	Devin Booker D. Booker	2	109	39.0	54.5	7.0	4.0	1.0	0.5	19.0	31.5	60.3	4.0	8.5	47.1	12.5	13.5	92.6	72.8	1.5	5.5	5.5	78	14	8	2	1	11	8	-5
3	Kyrie Irving K. Irving	2	112	42.6	56.0	3.5	5.0	3.0	0.0	18.5	34.0	54.4	9.0	13.0	69.2	10.0	10.0	100.0	72.9	1.5	2.0	2.5	85	7	10	6	0	5	3	+18
4	Anthony Edwards A. Edwards	1	51	37.6	51.0	6.0	7.0	0.0	0.0	17.0	29.0	58.6	6.0	13.0	46.2	11.0	11.0	100.0	75.4	1.0	5.0	2.0	38	6	7	0	0	2	0	+6
5	Darius Garland D. Garland	1	51	40.0	51.0	2.0	6.0	2.0	0.0	16.0	31.0	51.6	10.0	15.0	66.7	9.0	13.0	69.2	69.4	1.0	1.0	2.0	40	2	6	2	0	2	3	+6
6	Saddiq Bey S. Bey	1	51	38.7	51.0	9.0	4.0	3.0	0.0	17.0	27.0	63.0	10.0	14.0	71.4	7.0	10.0	70.0	81.2	0.0	9.0	1.0	39	9	4	3	0	1	1	+11
7	Ja Morant J. Morant	1	52	34.3	52.0	7.0	2.0	0.0	0.0	22.0	30.0	73.3	4.0	4.0	100.0	4.0	7.0	57.1	78.6	1.0	6.0	4.0	34	7	2	0	0	4	1	+23
8	Luka Dončić L. Dončić	1	51	39.8	51.0	9.0	6.0	1.0	1.0	17.0	26.0	65.4	7.0	14.0	50.0	10.0	14.0	71.4	79.3	0.0	9.0	7.0	40	9	6	1	1	7	4	+9
9	Karl-Anthony Towns K. Towns	1	56	41.4	56.0	15.0	4.0	0.0	1.0	19.0	32.0	59.4	6.0	8.0	75.0	12.0	15.0	80.0	72.5	4.0	11.0	2.0	41	15	4	0	1	2	4	+7
10	Anthony Davis A. Davis	1	59	43.4	59.0	20.0	4.0	0.0	1.0	24.0	34.0	70.6	2.0	2.0	100.0	9.0	10.0	90.0	76.8	6.0	14.0	2.0	43	20	4	0	1	2	1	+17
11	Terrence Ross T. Ross	1	51	43.9	51.0	9.0	1.0	1.0	0.0	16.0	29.0	55.2	10.0	17.0	58.8	9.0	10.0	90.0	76.3	3.0	6.0	3.0	44	9	1	1	0	3	4	-4
12	Amar'e Stoudemire A. Stoudemire	1	50	41.0	50.0	11.0	3.0	1.0	1.0	20.0	27.0	74.1	0.0	1.0	0.0	10.0	17.0	58.8	72.5	5.0	6.0	1.0	41	11	3	1	1	1	3	+25
13	Tracy McGrady T. McGrady	1	50	42.0	50.0	10.0	3.0	2.0	0.0	18.0	29.0	62.1	4.0	7.0	57.1	10.0	15.0	66.7	70.2	0.0	10.0	3.0	42	10	3	2	0	3	1	+7
14	Kobe Bryant K. Bryant	1	51	51.0	51.0	7.0	8.0	2.0	1.0	18.0	35.0	51.4	2.0	7.0	28.6	13.0	13.0	100.0	62.6	3.0	4.0	8.0	51	7	8	2	1	8	4	-2
15	Shaquille O'Neal S. O'Neal	1	53	36.0	53.0	18.0	4.0	2.0	2.0	22.0	31.0	71.0	0.0	0.0		9.0	13.0	69.2	72.2	7.0	11.0	3.0	36	18	4	2	2	3	3
16	Bob McAdoo B. McAdoo	1	52	48.0	52.0	22.0	2.0		7.0	20.0	28.0	71.4				12.0	14.0	85.7	76.1				48	22	2		7		4
17	Phil Chenier P. Chenier	1	53	42.0	53.0	1.0	4.0			22.0	31.0	71.0				9.0	11.0	81.8	73.9				42	1	4				0
18	Kareem Abdul-Jabbar K. Abdul-Jabbar	1	51	43.0	51.0	8.0	3.0			18.0	25.0	72.0				15.0	23.0	65.2	72.6				43	8	3				4
19	Elvin Hayes E. Hayes	1	54	48.0	54.0	22.0				20.0	45.0	44.4				14.0	17.0	82.4	51.4				48	22					2