Rajon Rondo has the most assists by a 31-year-old player in a game, with 25 assists versus the Nets on December 27, 2017.

Interpreted as:

most assists by a player in a regular-season game by a 31 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	Rajon Rondo R. Rondo	25	31-308	12/27/2017	NOP	vs	BKN	30	2	7	1	0	1	5	20.0	0	1	0.0	0	0		20.0	1	6	3	4	+28
2	Guy Rodgers G. Rodgers	24	31-111	12/21/1966	CHI	vs	NYK	46	18	2			6	16	37.5				6	8	75.0	46.1				1
3	Steve Nash S. Nash	22	31-329	1/2/2006	PHX	@	NYK	55	28	5	1	0	10	25	40.0	3	13	23.1	5	6	83.3	50.7	2	3	4	5	-1
4	Mark Jackson M. Jackson	22	31-294	1/20/1997	DEN	vs	NJN	40	21	7	0	0	6	10	60.0	2	4	50.0	7	8	87.5	77.7	1	6	2	3	+13
5	Magic Johnson M. Johnson	22	31-084	11/6/1990	LAL	vs	POR	49	24	6	3	0	8	16	50.0	1	4	25.0	7	7	100.0	62.9	1	5	5	3
6	Magic Johnson M. Johnson	21	31-124	12/16/1990	LAL	vs	IND	39	29	7	1	0	7	14	50.0	0	0		15	16	93.8	68.9	2	5	7	2
7	Larry Siegfried L. Siegfried	21	31-178	11/16/1970	SDR	@	POR	34	15	6			6	7	85.7				3	3	100.0	90.1				1
8	Wilt Chamberlain W. Chamberlain	21	31-165	2/2/1968	PHI	vs	DET	48	22	25			9	13	69.2				4	12	33.3	60.2				0
9	Chris Paul C. Paul	20	31-218	12/10/2016	LAC	vs	NOP	30	20	5	3	0	8	16	50.0	3	6	50.0	1	2	50.0	59.2	0	5	0	3	+21
10	Rod Strickland R. Strickland	20	31-214	2/10/1998	WAS	@	GSW	42	21	12	2	0	7	18	38.9	0	1	0.0	7	9	77.8	47.8	3	9	5	2	+23
11	John Stockton J. Stockton	20	31-345	3/6/1994	UTA	@	PHX	41	18	1	5	0	7	9	77.8	1	2	50.0	3	3	100.0	87.2	0	1	6	4
12	Guy Rodgers G. Rodgers	20	31-047	10/18/1966	CHI	vs	SFW	41	22	10			8	20	40.0				6	6	100.0	48.6				5
13	Draymond Green D. Green	19	31-050	4/23/2021	GSW	vs	DEN	33	2	12	0	0	1	3	33.3	0	2	0.0	0	0		33.3	1	11	6	1	+11
14	Steve Nash S. Nash	19	31-333	1/6/2006	PHX	vs	MIA	35	11	3	0	0	3	6	50.0	3	4	75.0	2	2	100.0	79.9	0	3	3	0	+24
15	Rod Strickland R. Strickland	19	31-120	11/8/1997	WAS	@	MIA	44	14	2	2	0	5	14	35.7	0	1	0.0	4	6	66.7	42.1	1	1	4	5	-8
16	Mark Jackson M. Jackson	19	31-361	3/28/1997	IND	@	CHA	37	4	3	1	0	1	5	20.0	0	1	0.0	2	2	100.0	34.0	1	2	6	3	+4
17	Mark Jackson M. Jackson	19	31-333	2/28/1997	IND	vs	MIL	38	7	3	2	0	2	8	25.0	0	3	0.0	3	5	60.0	34.3	0	3	3	1	+12
18	John Stockton J. Stockton	19	31-231	11/12/1993	UTA	vs	DET	30	9	5	2	0	4	9	44.4	0	1	0.0	1	2	50.0	45.5	0	5	1	4
19	Isiah Thomas I. Thomas	19	31-292	2/16/1993	DET	vs	ORL	46	15	3	0	0	7	17	41.2	0	2	0.0	1	3	33.3	40.9	1	2	2	4
20	Magic Johnson M. Johnson	19	31-244	4/15/1991	LAL	vs	DAL	37	7	9	3	0	1	4	25.0	0	2	0.0	5	6	83.3	52.7	1	8	11	0
21	Nate Archibald N. Archibald	19	31-051	10/23/1979	BOS	@	SAS	40	13	2	1	0	5	11	45.5	0	0		3	3	100.0	52.8	1	1	3	3
22	Wilt Chamberlain W. Chamberlain	19	31-211	3/19/1968	PHI	vs	CIN	53	22	27			10	22	45.5				2	10	20.0	41.7				1
23	Rajon Rondo R. Rondo	18	31-291	12/10/2017	NOP	vs	PHI	37	13	2	5	1	5	7	71.4	1	2	50.0	2	2	100.0	82.5	0	2	3	0	+7
24	Chris Paul C. Paul	18	31-247	1/8/2017	LAC	vs	MIA	29	19	6	2	0	7	11	63.6	1	3	33.3	4	5	80.0	72.0	1	5	1	4	+23
25	Jose Calderon J. Calderon	18	31-152	2/27/2013	DET	@	WAS	36	6	4	1	0	2	6	33.3	0	1	0.0	2	2	100.0	43.6	0	4	2	1	+8