what are the most points in a game by a rookie point guard under 20 years old

LaMelo Ball has put up the most points by a rookie point guard younger than 20 in a game, with 34 points against the Jazz on February 5, 2021.

Interpreted as:

What are the most points in a regular-season game by a rookie point guard under 20 years old?

	NAME	PTS	AGE	DATE	TM		OPP	MIN	REB	AST	STL	BLK	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TOV	PF	+/-
1	LaMelo Ball L. Ball	34	19-167	2/5/2021	CHA	vs	UTA	39	4	8	2	1	14	27	51.9	4	9	44.4	2	3	66.7	60.0	2	2	0	4	-1
2	Scoot Henderson S. Henderson	33	19-345	1/14/2024	POR	vs	PHX	40	7	9	3	0	11	31	35.5	4	9	44.4	7	9	77.8	47.2	4	3	3	3	-12
3	Theo Maledon T. Maledon	33	19-294	4/2/2021	OKC	@	PHX	31	5	3	1	0	10	18	55.6	5	7	71.4	8	10	80.0	73.7	0	5	5	3	-26
4	Stephon Marbury S. Marbury	33	19-307	12/23/1996	MIN	vs	UTA	40	3	8	1	1	11	17	64.7	2	5	40.0	9	11	81.8	75.5	1	2	4	4	+12
5	Carlton Carrington C. Carrington	32	19-256	4/3/2025	WAS	vs	ORL	37	9	7	0	0	12	18	66.7	7	10	70.0	1	1	100.0	86.8	1	8	1	3	-5
6	Kyrie Irving K. Irving	32	19-310	1/27/2012	CLE	vs	NJN	31	6	2	2	0	12	20	60.0	2	5	40.0	6	8	75.0	68.0	4	2	1	2	+1
7	Scoot Henderson S. Henderson	30	19-364	2/2/2024	POR	@	DEN	37	5	2	0	0	8	15	53.3	3	7	42.9	11	12	91.7	74.0	2	3	2	3	+7
8	LaMelo Ball L. Ball	30	19-191	3/1/2021	CHA	@	POR	32	6	8	4	1	10	18	55.6	5	7	71.4	5	6	83.3	72.7	2	4	3	3	-18
9	Stephon Marbury S. Marbury	30	19-283	11/29/1996	MIN	@	DEN	32	4	11	0	0	10	18	55.6	2	4	50.0	8	13	61.5	63.2	2	2	0	3	+6
10	Collin Sexton C. Sexton	29	19-338	12/8/2018	CLE	vs	WAS	40	3	6	2	0	13	23	56.5	3	7	42.9	0	0		63.0	0	3	4	3	+10
11	Collin Sexton C. Sexton	29	19-324	11/24/2018	CLE	vs	HOU	34	4	2	0	0	14	21	66.7	1	3	33.3	0	0		69.0	0	4	3	4	+7
12	Lonzo Ball L. Ball	29	19-358	10/20/2017	LAL	@	PHX	37	11	9	1	0	12	27	44.4	4	9	44.4	1	2	50.0	52.0	2	9	4	4	+1
13	Kyrie Irving K. Irving	29	19-364	3/21/2012	CLE	@	ATL	42	9	9	3	0	10	19	52.6	3	6	50.0	6	7	85.7	65.7	2	7	7	0	+7
14	Zach LaVine Z. LaVine	28	19-263	11/28/2014	MIN	@	LAL	26	1	5	0	0	11	14	78.6	2	2	100.0	4	4	100.0	88.8	0	1	3	0	+14
15	Kyrie Irving K. Irving	28	19-357	3/14/2012	CLE	@	MIL	29	3	5	1	0	11	16	68.8	2	4	50.0	4	4	100.0	78.8	1	2	8	2	-6
16	LaMelo Ball L. Ball	27	19-258	5/7/2021	CHA	vs	ORL	34	6	6	2	0	11	22	50.0	0	7	0.0	5	8	62.5	52.9	0	6	4	1	+7
17	LaMelo Ball L. Ball	27	19-161	1/30/2021	CHA	vs	MIL	31	5	9	3	0	8	10	80.0	2	3	66.7	9	9	100.0	96.7	2	3	1	3	+37
18	Dennis Smith Jr. D. Smith Jr.	27	19-354	11/14/2017	DAL	vs	SAS	36	6	2	0	0	10	23	43.5	5	11	45.5	2	2	100.0	56.5	0	6	6	4	-8
19	D'Angelo Russell D. Russell	27	19-318	1/7/2016	LAL	@	SAC	29	2	4	2	0	11	16	68.8	3	7	42.9	2	3	66.7	77.9	0	2	3	1	+29
20	Stephon Marbury S. Marbury	27	19-310	12/26/1996	MIN	vs	NYK	43	2	7	2	0	8	18	44.4	4	7	57.1	7	10	70.0	60.3	1	1	6	0	+6
21	LaMelo Ball L. Ball	26	19-208	3/18/2021	CHA	@	LAL	33	5	7	1	0	10	18	55.6	2	5	40.0	4	5	80.0	64.4	0	5	6	5	-15
22	Emmanuel Mudiay E. Mudiay	26	19-260	11/20/2015	DEN	vs	PHX	29	3	5	3	1	10	16	62.5	1	3	33.3	5	7	71.4	68.1	1	2	6	2	-8
23	Kyrie Irving K. Irving	26	19-362	3/19/2012	CLE	@	NJN	31	5	7	1	0	8	20	40.0	3	6	50.0	7	8	87.5	55.3	1	4	4	5	-2
24	Kyrie Irving K. Irving	26	19-295	1/12/2012	CLE	@	PHX	28	3	6	2	0	11	17	64.7	2	4	50.0	2	2	100.0	72.7	1	2	6	3	+13
25	Scoot Henderson S. Henderson	25	19-328	12/28/2023	POR	vs	SAS	36	3	4	1	0	8	23	34.8	3	7	42.9	6	6	100.0	48.8	2	1	6	5	-6