Mitch Kupchak had his most assists in a game against the Pistons on October 21, 1978, with 5 assists.

Interpreted as:

Mitch Kupchak most assists in a regular-season game

	NAME	AST	DATE	TM		OPP	MIN	PTS	REB	STL	BLK	FGM	FGA	FG%	3PM	3PA	FTM	FTA	FT%	TS%	OREB	DREB	TOV	PF
1	Mitch Kupchak M. Kupchak	5	10/21/1978	WAS	vs	DET	27	18	11			8	12	66.7			2	3	66.7	67.6				3
2	Mitch Kupchak M. Kupchak	4	12/4/1981	LAL	@	DEN	27	14	13	1	0	7	13	53.8	0	0	0	2	0.0	50.4	3	10	4	3
3	Mitch Kupchak M. Kupchak	4	1/8/1981	WAS	@	KCK	38	22	13	0	0	9	15	60.0	0		4	4	100.0	65.6				5
4	Mitch Kupchak M. Kupchak	4	11/28/1978	WAS	@	NYK	34	20	16			8	15	53.3			4	4	100.0	59.7				3
5	Mitch Kupchak M. Kupchak	4	12/13/1977	WAS	vs	GSW	20	6	8	0	0	3	8	37.5			0	0		37.5	2	6	2	3
6	Mitch Kupchak M. Kupchak	4	11/10/1977	WAS	vs	MIL	27	20	10			8	10	80.0			4	12	33.3	65.4				3
7	Mitch Kupchak M. Kupchak	4	11/4/1977	WAS	vs	PHX	31	21	9	0	1	8	16	50.0			5	6	83.3	56.3	4	5	3	2
8	Mitch Kupchak M. Kupchak	3	1/8/1986	LAL	vs	POR	22	13	6	1	0	4	13	30.8	0	0	5	7	71.4	40.4	4	2	3	2
9	Mitch Kupchak M. Kupchak	3	4/12/1985	LAL	vs	SEA	40	29	13	1	0	13	21	61.9	0	0	3	5	60.0	62.5	4	9	0	5
10	Mitch Kupchak M. Kupchak	3	12/1/1981	LAL	vs	UTA	28	17	10		0	6	10	60.0	0	0	5	8	62.5	62.9				2
11	Mitch Kupchak M. Kupchak	3	11/18/1981	LAL	@	UTA	33	15	3		0	7	13	53.8	0	0	1	1	100.0	55.8				2
12	Mitch Kupchak M. Kupchak	3	1/27/1981	WAS	@	ATL	30	14	5			6	12	50.0	0		2	4	50.0	50.9				1
13	Mitch Kupchak M. Kupchak	3	11/14/1980	WAS	@	IND	16	4	3			2	6	33.3	0		0	0		33.3				1
14	Mitch Kupchak M. Kupchak	3	3/11/1979	WAS	@	DEN	26	13	6	1	1	5	10	50.0			3	4	75.0	55.3	3	3	1	1
15	Mitch Kupchak M. Kupchak	3	1/20/1979	WAS	vs	IND	25	18	5			7	9	77.8			4	4	100.0	83.6				0
16	Mitch Kupchak M. Kupchak	3	1/19/1979	WAS	@	CHI	34	21	10	0	0	10	16	62.5			1	1	100.0	63.9	3	7	3	3
17	Mitch Kupchak M. Kupchak	3	1/17/1979	WAS	vs	NOJ	20	2	1			1	7	14.3			0	0		14.3				1
18	Mitch Kupchak M. Kupchak	3	12/28/1978	WAS	@	NYK	26	16	1			8	12	66.7			0	3	0.0	60.1				0
19	Mitch Kupchak M. Kupchak	3	12/22/1978	WAS	@	LAL	37	15	7	0	0	7	15	46.7			1	2	50.0	47.2	3	4	3	4
20	Mitch Kupchak M. Kupchak	3	12/15/1978	WAS	@	DET	19	5	1			2	6	33.3			1	2	50.0	36.3				2
21	Mitch Kupchak M. Kupchak	3	12/6/1978	WAS	@	HOU	30	19	8			7	13	53.8			5	5	100.0	62.5				1
22	Mitch Kupchak M. Kupchak	3	11/22/1978	WAS	@	BOS	23	6	1	0	0	2	5	40.0			2	2	100.0	51.0	0	1	1	3
23	Mitch Kupchak M. Kupchak	3	11/14/1978	WAS	@	CLE	19	12	4	0	0	5	7	71.4			2	4	50.0	68.5	1	3	0	2
24	Mitch Kupchak M. Kupchak	3	4/8/1978	WAS	@	PHI	37	31	14			13	21	61.9			5	9	55.6	62.1				5
25	Mitch Kupchak M. Kupchak	3	3/22/1978	WAS	@	NOJ	27	22	3			9	14	64.3			4	6	66.7	66.1				3