Isiah Thomas has the most assists by a 23-year-old player in a game, with 25 assists against the Mavericks on February 13, 1985.

Interpreted as:

most assists by a player in a regular-season game by a 23 year old

	NAME	AST	AGE	DATE	TM		OPP	MIN	PTS	REB	STL	BLK	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TOV	PF	+/-
1	Isiah Thomas I. Thomas	25	23-289	2/13/1985	DET	vs	DAL	41	23	5	2	0	10	18	55.6	0	1	0.0	3	5	60.0	56.9	0	5	5	4
2	Isiah Thomas I. Thomas	24	23-283	2/7/1985	DET	@	WAS	50	25	10	2	1	9	27	33.3	1	3	33.3	6	9	66.7	40.4	4	6	2	1
3	Tyrese Haliburton T. Haliburton	23	23-305	12/30/2023	IND	vs	NYK	36	22	5	2	1	8	17	47.1	2	10	20.0	4	4	100.0	58.6	1	4	2	0	+19
4	Jamaal Tinsley J. Tinsley	23	23-267	11/22/2001	IND	vs	WAS	45	19	11	1	1	6	15	40.0	0	1	0.0	7	8	87.5	51.3	2	9	5	2	+5
5	Phil Ford P. Ford	22	23-012	2/21/1979	KCK	vs	MIL	44	26	5	5	0	12	16	75.0				2	3	66.7	75.1			6	5
6	Isiah Thomas I. Thomas	21	23-347	4/12/1985	DET	vs	WAS	37	17	5	0	0	7	12	58.3	0	0		3	3	100.0	63.8	2	3	4	3
7	Isiah Thomas I. Thomas	21	23-236	12/22/1984	DET	@	KCK	35	22	3	2	0	9	20	45.0	0	1	0.0	4	5	80.0	49.5	0	3	3	4
8	Magic Johnson M. Johnson	21	23-154	1/15/1983	LAL	@	ATL	37	13	17			6	10	60.0	0	0		1	1	100.0	62.3				2
9	Phil Ford P. Ford	21	23-014	2/23/1979	KCK	vs	PHX	45	22	3	3	0	8	16	50.0				6	8	75.0	56.4	0	3	4	3
10	Tyrese Haliburton T. Haliburton	20	23-303	12/28/2023	IND	@	CHI	37	21	3	2	1	7	17	41.2	6	13	46.2	1	2	50.0	58.7	0	3	0	2	+32
11	Chris Paul C. Paul	20	23-297	2/27/2009	NOH	vs	MIL	36	9	7	0	0	4	12	33.3	0	2	0.0	1	4	25.0	32.7	0	7	2	3	0
12	Deron Williams D. Williams	20	23-251	3/3/2008	UTA	vs	DAL	45	17	5	0	2	7	17	41.2	1	5	20.0	2	2	100.0	47.5	0	5	4	4	+8
13	Deron Williams D. Williams	20	23-190	1/2/2008	UTA	vs	PHI	39	15	1	0	2	7	13	53.8	1	2	50.0	0	0		57.7	0	1	4	2	+5
14	Kevin Johnson K. Johnson	20	23-042	4/15/1989	PHX	vs	SAS	38	21	4	4	1	9	17	52.9	0	0		3	3	100.0	57.3	0	4	3	4
15	Gary Grant G. Grant	20	23-350	4/6/1989	LAC	vs	POR	40	17	3	4	0	4	7	57.1	0	0		9	10	90.0	74.6	0	3	3	4
16	Isiah Thomas I. Thomas	20	23-339	4/4/1985	DET	@	MIL	41	20	9	2	0	8	15	53.3	0	4	0.0	4	4	100.0	59.7	3	6	7	4
17	Isiah Thomas I. Thomas	20	23-315	3/11/1985	DET	vs	LAC	38	16	4	2	0	8	17	47.1	0	1	0.0	0	0		47.1	2	2	2	2
18	Isiah Thomas I. Thomas	20	23-267	1/22/1985	DET	@	ATL	34	15	4	1	0	5	9	55.6	0	1	0.0	5	7	71.4	62.1	1	3	2	3
19	Isiah Thomas I. Thomas	20	23-258	1/13/1985	DET	vs	LAL	35	30	2	4	1	14	20	70.0	1	2	50.0	1	2	50.0	71.8	0	2	3	1
20	Magic Johnson M. Johnson	20	23-207	3/9/1983	LAL	vs	SDC	42	7	5	2	0	2	5	40.0	0	0		3	4	75.0	51.8	2	3	5	2
21	Magic Johnson M. Johnson	20	23-165	1/26/1983	LAL	vs	MIL	46	9	12	0	0	4	11	36.4	0	0		1	4	25.0	35.3	2	10	4	4
22	Magic Johnson M. Johnson	20	23-144	1/5/1983	LAL	@	PHI	46	23	12	2	0	11	16	68.8	0	0		1	1	100.0	70.0	5	7	6	3
23	Johnny Moore J. Moore	20	23-305	1/2/1982	SAS	vs	DEN	27	11	4	3	0	3	8	37.5	0	1	0.0	5	6	83.3	51.7	1	3	1	6
24	Oscar Robertson O. Robertson	20	23-017	12/11/1961	CIN		CHI	47	32	15			12	24	50.0				8	13	61.5	53.8				3
25	Tyrese Haliburton T. Haliburton	19	23-009	3/9/2023	IND	vs	HOU	38	29	2	0	0	9	20	45.0	2	9	22.2	9	10	90.0	59.4	0	2	1	1	+14