Derek Harper got his most steals in a game against the Rockets on November 9, 1985, with 8 steals.

Interpreted as:

Derek Harper most steals in a regular-season game

	NAME	STL	DATE	TM		OPP	MIN	PTS	REB	AST	BLK	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TOV	PF	+/-
1	Derek Harper D. Harper	8	11/9/1985	DAL	vs	HOU	27	11	3	5	1	5	11	45.5	0	1	0.0	1	2	50.0	46.3	0	3	1	1
2	Derek Harper D. Harper	7	3/29/1988	DAL	@	ATL	40	25	3	9	0	9	16	56.3	2	5	40.0	5	6	83.3	67.1	0	3	6	2
3	Derek Harper D. Harper	7	3/2/1988	DAL	vs	SAC	30	14	0	8	2	5	14	35.7	2	2	100.0	2	2	100.0	47.0	0	0	2	1
4	Derek Harper D. Harper	7	4/10/1986	DAL	@	SEA	28	14	1	8	0	6	12	50.0	0	0		2	4	50.0	50.9	0	1	1	2
5	Derek Harper D. Harper	7	1/25/1986	DAL	@	SAS	32	16	2	6	0	6	9	66.7	0	1	0.0	4	4	100.0	74.3	1	1	2	0
6	Derek Harper D. Harper	7	12/18/1984	DAL	@	MIL	29	12	2	5	0	5	10	50.0	0	1	0.0	2	2	100.0	55.1	0	2	1	3
7	Derek Harper D. Harper	6	4/6/1997	DAL	@	LAL	39	18	4	4	0	6	15	40.0	1	4	25.0	5	6	83.3	51.0	1	3	5	0	-10
8	Derek Harper D. Harper	6	12/10/1995	NYK	vs	SAS	49	13	5	5	0	6	12	50.0	1	4	25.0	0	2	0.0	50.5	1	4	1	4
9	Derek Harper D. Harper	6	1/16/1992	DAL	vs	DEN	43	24	0	2	0	9	25	36.0	1	6	16.7	5	6	83.3	43.4	0	0	1	5
10	Derek Harper D. Harper	6	4/10/1990	DAL	@	LAC	43	30	1	7	0	11	20	55.0	0	2	0.0	8	9	88.9	62.6	0	1	2	2
11	Derek Harper D. Harper	6	1/26/1990	DAL	vs	SAC	38	18	3	9	0	8	13	61.5	0	2	0.0	2	2	100.0	64.8	0	3	1	3
12	Derek Harper D. Harper	6	3/3/1989	DAL	@	BOS	46	24	3	10	0	11	18	61.1	2	4	50.0	0	1	0.0	65.1	0	3	4	2
13	Derek Harper D. Harper	6	1/22/1988	DAL	vs	LAC	40	16	2	14	0	7	13	53.8	0	1	0.0	2	2	100.0	57.6	0	2	5	0
14	Derek Harper D. Harper	6	3/31/1987	DAL	vs	LAC	35	17	4	7	0	7	14	50.0	1	3	33.3	2	4	50.0	53.9	0	4	1	1
15	Derek Harper D. Harper	6	1/16/1987	DAL	@	MIL	46	22	2	8	0	8	14	57.1	0	3	0.0	6	9	66.7	61.2	1	1	3	4
16	Derek Harper D. Harper	6	12/10/1986	DAL	vs	POR	37	20	0	15	0	7	14	50.0	2	5	40.0	4	5	80.0	61.7	0	0	6	3
17	Derek Harper D. Harper	6	2/17/1986	DAL	@	NJN	38	18	3	7	0	6	9	66.7	0	0		6	8	75.0	71.9	1	2	1	2
18	Derek Harper D. Harper	5	1/5/1998	ORL	vs	SAS	36	11	2	3	0	5	13	38.5	1	6	16.7	0	0		42.3	0	2	1	2	-1
19	Derek Harper D. Harper	5	4/3/1997	DAL	@	GSW	39	19	0	7	0	8	14	57.1	1	3	33.3	2	2	100.0	63.8	0	0	2	2	-14
20	Derek Harper D. Harper	5	3/24/1996	NYK	@	DAL	41	13	7	6	2	6	13	46.2	1	4	25.0	0	0		50.0	1	6	2	1
21	Derek Harper D. Harper	5	1/2/1996	NYK	vs	POR	40	22	0	4	0	9	19	47.4	2	6	33.3	2	4	50.0	53.0	0	0	2	5
22	Derek Harper D. Harper	5	3/15/1994	NYK	vs	IND	38	17	7	12	0	5	13	38.5	1	2	50.0	6	10	60.0	48.9	1	6	2	2
23	Derek Harper D. Harper	5	2/2/1994	NYK	@	WAS	24	8	0	1	1	2	6	33.3	0	0		4	6	66.7	46.3	0	0	1	2
24	Derek Harper D. Harper	5	12/20/1993	DAL	@	NYK	33	16	3	1	0	7	15	46.7	0	3	0.0	2	4	50.0	47.7	1	2	2	1
25	Derek Harper D. Harper	5	2/19/1991	DAL	@	POR	38	32	3	6	0	13	21	61.9	3	6	50.0	3	4	75.0	70.3	1	2	4	1