how many rookies had at least 20 points in a single game 2021

LaMelo Ball dropped 22 points in his rookie season versus the Mavericks on December 30, 2020.

Interpreted as:

How many rookies had at least 20 points in a single regular-season game 2021?

	NAME	DATE	PTS	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	12/30/2020	22	CHA	@	DAL	29	8	5	1	1	7	10	70.0	4	5	80.0	4	4	100.0	93.5	4	4	2	3	+8
2	Payton Pritchard P. Pritchard	1/4/2021	23	BOS	@	TOR	32	2	8	0	0	8	13	61.5	2	4	50.0	5	5	100.0	75.7	0	2	3	2	+18
3	Saddiq Bey S. Bey	1/6/2021	20	DET	@	MIL	24	10	3	1	0	6	14	42.9	6	10	60.0	2	2	100.0	67.2	0	10	1	1	+2
4	Anthony Edwards A. Edwards	1/7/2021	26	MIN	@	POR	31	4	1	2	0	9	21	42.9	3	10	30.0	5	7	71.4	54.0	2	2	4	2	-15
5	Tyrese Maxey T. Maxey	1/9/2021	39	PHI	vs	DEN	44	7	6	2	0	18	33	54.5	3	8	37.5	0	0		59.1	1	6	2	3	-17
6	LaMelo Ball L. Ball	1/9/2021	22	CHA	vs	ATL	31	12	11	1	0	9	13	69.2	3	5	60.0	1	2	50.0	79.3	3	9	1	4	+18
7	Deni Avdija D. Avdija	1/9/2021	20	WAS	vs	MIA	32	5	5	2	0	7	15	46.7	5	9	55.6	1	1	100.0	64.8	0	5	0	2	-4
8	Immanuel Quickley I. Quickley	1/15/2021	23	NYK	@	CLE	28	5	4	1	1	9	17	52.9	3	7	42.9	2	2	100.0	64.3	1	4	1	3	+11
9	Mason Jones M. Jones	1/16/2021	24	HOU	@	SAS	35	6	4	0	0	8	12	66.7	6	8	75.0	2	4	50.0	87.2	1	5	6	2	-13
10	James Wiseman J. Wiseman	1/20/2021	20	GSW	vs	SAS	25	6	4	0	0	8	11	72.7	0	0		4	5	80.0	75.8	1	5	0	4	+17
11	Immanuel Quickley I. Quickley	1/24/2021	31	NYK	@	POR	24	3	4	0	0	9	18	50.0	5	8	62.5	8	8	100.0	72.0	1	2	1	3	+2
12	Cole Anthony C. Anthony	1/25/2021	21	ORL	vs	CHA	31	5	3	0	0	8	12	66.7	4	5	80.0	1	3	33.3	78.8	1	4	3	5	+2
13	James Wiseman J. Wiseman	1/27/2021	25	GSW	vs	MIN	24	6	0	0	2	9	14	64.3	3	3	100.0	4	6	66.7	75.1	3	3	4	3	+12
14	Anthony Edwards A. Edwards	1/27/2021	25	MIN	@	GSW	32	4	2	3	0	9	19	47.4	5	8	62.5	2	2	100.0	62.9	1	3	3	1	-2
15	Immanuel Quickley I. Quickley	1/29/2021	25	NYK	vs	CLE	25	5	3	0	0	9	17	52.9	5	8	62.5	2	2	100.0	69.9	3	2	2	4	+19
16	Theo Maledon T. Maledon	1/29/2021	24	OKC	vs	BKN	33	3	3	1	0	8	9	88.9	6	6	100.0	2	2	100.0	121.5	0	3	1	0	-8
17	LaMelo Ball L. Ball	1/30/2021	27	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	Immanuel Quickley I. Quickley	1/31/2021	25	NYK	vs	LAC	27	3	3	0	1	9	16	56.3	2	8	25.0	5	6	83.3	67.1	1	2	0	3	-8
19	Anthony Edwards A. Edwards	1/31/2021	23	MIN	vs	CLE	30	5	4	1	1	9	15	60.0	4	7	57.1	1	1	100.0	74.5	0	5	0	2	0
20	LaMelo Ball L. Ball	2/3/2021	22	CHA	vs	PHI	38	7	3	2	0	8	16	50.0	3	6	50.0	3	3	100.0	63.5	1	6	6	2	-3
21	Tyrese Haliburton T. Haliburton	2/3/2021	21	SAC	vs	BOS	30	3	4	2	0	8	15	53.3	5	9	55.6	0	0		70.0	2	1	1	1	+13
22	Patrick Williams P. Williams	2/5/2021	20	CHI	@	ORL	34	7	1	2	1	7	11	63.6	0	1	0.0	6	6	100.0	73.3	2	5	1	3	-8
23	LaMelo Ball L. Ball	2/5/2021	34	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
24	Tyrese Haliburton T. Haliburton	2/6/2021	23	SAC	vs	DEN	35	4	6	2	1	8	12	66.7	4	7	57.1	3	3	100.0	86.3	0	4	0	1	+12
25	Anthony Edwards A. Edwards	2/6/2021	20	MIN	@	OKC	31	8	4	1	1	8	16	50.0	2	5	40.0	2	4	50.0	56.3	0	8	0	1	+2