LaMelo Ball has sunk the most threes by a player younger than 21 in a season, with 220 three-pointers in 2021-22.

Interpreted as:

most 3pm by a player before turning 21 years old in a season

	NAME	3PM	Age	SEASON	TM	GP	MPG	PPG	RPG	APG	SPG	BPG	FGM	FGA	FG%	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TPG	MIN	PTS	REB	AST	STL	BLK	TOV	PF	+/-
1	LaMelo Ball L. Ball	220	20	2021-22	CHA	75	32.3	20.1	6.7	7.6	1.6	0.4	7.2	16.7	42.9	7.5	38.9	2.8	3.2	87.2	55.4	1.4	5.2	3.3	2,422	1,508	501	571	119	30	245	237	+99
2	Anthony Edwards A. Edwards	215	20	2021-22	MIN	72	34.3	21.3	4.8	3.8	1.5	0.6	7.6	17.3	44.1	8.4	35.7	3.1	3.9	78.6	56.0	0.9	3.9	2.6	2,466	1,533	343	275	105	46	190	164	+188
3	Jalen Green J. Green	187	20	2022-23	HOU	76	34.2	22.1	3.7	3.7	0.8	0.2	7.4	17.9	41.6	7.3	33.8	4.8	6.1	78.6	53.8	0.6	3.2	2.6	2,602	1,683	284	281	59	18	200	131	-447
4	Anthony Edwards A. Edwards	171	19	2020-21	MIN	72	32.1	19.3	4.7	2.9	1.1	0.5	7.0	16.8	41.7	7.2	32.9	2.9	3.8	77.6	52.3	0.8	3.8	2.2	2,314	1,392	336	211	82	36	160	129	-228
5	Luka Dončić L. Dončić	171	20	2019-20	DAL	61	33.6	28.8	9.4	8.8	1.0	0.2	9.5	20.6	46.3	8.9	31.6	7.0	9.2	75.8	58.5	1.3	8.1	4.3	2,047	1,759	573	538	62	14	260	153	+253
6	Luka Dončić L. Dončić	168	19	2018-19	DAL	72	32.2	21.2	7.8	6.0	1.1	0.3	7.0	16.5	42.7	7.1	32.7	4.8	6.7	71.3	54.5	1.2	6.6	3.4	2,318	1,526	563	429	77	25	247	137	-118
7	Jamal Murray J. Murray	165	20	2017-18	DEN	81	31.7	16.7	3.7	3.4	1.0	0.3	5.9	13.1	45.1	5.4	37.8	2.8	3.1	90.5	57.6	1.0	2.7	2.1	2,568	1,352	297	274	79	28	172	173	+223
8	Coby White C. White	163	20	2020-21	CHI	69	31.2	15.1	4.1	4.8	0.6	0.2	5.4	13.1	41.6	6.6	35.9	1.9	2.1	90.1	54.0	0.4	3.7	2.3	2,156	1,041	284	328	38	15	156	179	-107
9	Jalen Green J. Green	157	19	2021-22	HOU	67	31.9	17.3	3.4	2.6	0.7	0.3	6.1	14.2	42.6	6.8	34.3	2.8	3.5	79.7	54.7	0.5	2.9	2.0	2,138	1,157	226	176	44	18	135	103	-519
10	Trae Young T. Young	156	20	2018-19	ATL	81	30.9	19.1	3.7	8.1	0.9	0.2	6.5	15.5	41.8	6.0	32.4	4.2	5.1	82.9	53.9	0.8	2.9	3.8	2,503	1,549	301	653	72	15	308	140	-336
11	Mike Miller M. Miller	148	20	2000-01	ORL	82	29.1	11.9	4.0	1.7	0.6	0.2	4.5	10.3	43.6	4.4	40.7	1.1	1.6	71.1	54.1	0.8	3.2	1.2	2,390	975	327	140	51	19	97	200	+150
12	Keyonte George K. George	147	20	2023-24	UTA	75	27.0	13.0	2.8	4.4	0.5	0.1	4.3	10.9	39.1	5.9	33.4	2.5	3.0	84.8	53.3	0.2	2.6	2.5	2,023	974	211	332	36	7	188	91	-374
13	Devin Booker D. Booker	147	20	2016-17	PHX	78	35.0	22.1	3.2	3.4	0.9	0.3	7.8	18.3	42.3	5.2	36.3	4.7	5.7	83.2	53.1	0.6	2.6	3.1	2,731	1,726	249	268	72	21	241	242	-226
14	Jaren Jackson Jr. J. Jackson Jr.	145	20	2019-20	MEM	57	28.5	17.4	4.6	1.4	0.7	1.6	6.2	13.2	46.9	6.5	39.4	2.4	3.3	74.7	59.3	1.0	3.6	1.7	1,622	990	262	78	40	92	99	232	-104
15	Lauri Markkanen L. Markkanen	145	20	2017-18	CHI	68	29.7	15.2	7.5	1.2	0.6	0.6	5.5	12.7	43.4	5.9	36.2	2.1	2.4	84.3	55.2	1.2	6.3	1.2	2,020	1,033	508	79	39	40	83	103	-387
16	Brandon Jennings B. Jennings	145	20	2009-10	MIL	82	32.6	15.5	3.4	5.7	1.3	0.2	5.5	14.8	37.1	4.7	37.4	2.7	3.3	81.7	47.5	0.6	2.8	2.4	2,671	1,270	282	470	105	18	200	191	+116
17	Bub Carrington B. Carrington	138	19	2024-25	WAS	82	30.0	9.8	4.2	4.4	0.7	0.3	3.7	9.1	40.1	5.0	33.9	0.8	1.0	81.2	51.4	0.4	3.8	1.7	2,458	807	341	364	54	21	141	190	-798
18	Jabari Smith Jr. J. Smith Jr.	138	20	2023-24	HOU	76	31.9	13.7	8.1	1.6	0.7	0.8	5.0	11.0	45.4	5.0	36.3	2.0	2.4	81.1	57.1	1.8	6.3	1.2	2,424	1,044	616	121	52	61	89	200	-84
19	Bradley Beal B. Beal	138	20	2013-14	WAS	73	34.7	17.1	3.7	3.3	1.0	0.2	6.6	15.7	41.9	4.7	40.2	2.0	2.6	78.8	50.7	0.7	3.0	1.8	2,530	1,249	273	243	71	18	128	153	+110
20	Kevin Huerter K. Huerter	136	20	2018-19	ATL	75	27.3	9.7	3.3	2.9	0.9	0.3	3.7	8.8	41.9	4.7	38.5	0.5	0.7	73.2	53.3	0.8	2.5	1.5	2,048	727	245	214	65	25	109	155	-122
21	D'Angelo Russell D. Russell	135	20	2016-17	LAL	63	28.7	15.6	3.5	4.8	1.4	0.3	5.6	13.8	40.5	6.1	35.2	2.3	3.0	78.2	51.8	0.5	3.0	2.8	1,811	984	221	303	87	16	176	130	-359
22	Coby White C. White	133	19	2019-20	CHI	65	25.8	13.2	3.5	2.7	0.8	0.1	4.8	12.2	39.4	5.8	35.4	1.6	2.0	79.1	50.6	0.4	3.1	1.7	1,674	859	230	175	49	6	109	117	-163
23	Eric Gordon E. Gordon	131	20	2008-09	LAC	78	34.3	16.1	2.6	2.8	1.0	0.4	5.3	11.6	45.6	4.3	38.9	3.8	4.5	85.4	59.3	0.6	2.0	2.1	2,677	1,252	201	215	78	35	164	172	-457
24	D'Angelo Russell D. Russell	130	19	2015-16	LAL	80	28.2	13.2	3.4	3.3	1.2	0.2	4.9	12.0	41.0	4.6	35.1	1.8	2.4	73.7	50.7	0.6	2.8	2.5	2,259	1,054	274	266	93	13	196	142	-546
25	Victor Wembanyama V. Wembanyama	128	20	2023-24	SAS	71	29.7	21.4	10.6	3.9	1.2	3.6	7.8	16.7	46.5	5.5	32.5	4.1	5.2	79.6	56.5	2.3	8.4	3.7	2,106	1,522	755	274	88	254	260	153	-142