who made the first 3 pointer in nba playoff history

Kevin Grevey sank 4 three-pointers in Game 1 of the 1980 First Round against the 76ers on April 2, 1980.

Interpreted as:

Who made the first 3 pointer in a game in NBA playoff history?

	NAME	DATE	3PM	TM		OPP	MIN	PTS	REB	AST	STL	BLK	FGM	FGA	FG%	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TOV	PF
1	Kevin Grevey K. Grevey	4/2/1980	4	WAS	@	PHI	37	34	0	3		0	13	21	61.9	7	57.1	4	4	100.0	74.7	0	0		3
2	John Williamson J. Williamson	4/2/1980	1	WAS	@	PHI	13	13	0	0	0	0	5	8	62.5	3	33.3	2	2	100.0	73.2	0	0		4
3	Don Buse D. Buse	4/2/1980	1	PHX	vs	KCK	34	11	3	6	1	0	4	10	40.0	3	33.3	2	4	50.0	46.8			2	1
4	Phil Ford P. Ford	4/2/1980	2	KCK	@	PHX	29	14	1	7	0	0	6	13	46.2	2	100.0	0	1	0.0	52.1	0	1	4	4
5	Sam Lacey S. Lacey	4/2/1980	1	KCK	@	PHX	31	5	7	4	3	0	2	6	33.3	1	100.0	0	0		41.7			2	4
6	Billy Ray Bates B. Ray Bates	4/2/1980	1	POR	@	SEA	33	29	3	6	1	0	11	18	61.1	3	33.3	6	8	75.0	67.4	0	3	3	5
7	Mike Bratz M. Bratz	4/4/1980	1	PHX	@	KCK	25	11	2	1	0	0	5	9	55.6	3	33.3	0	0		61.1			1	3
8	Rudy Tomjanovich R. Tomjanovich	4/4/1980	1	HOU	@	SAS	34	18	7	3	0	0	7	12	58.3	1	100.0	3	4	75.0	65.4			2	2
9	Kevin Grevey K. Grevey	4/4/1980	1	WAS	vs	PHI	35	7	6	5		2	3	9	33.3	3	33.3	0	0		38.9				6
10	John Williamson J. Williamson	4/4/1980	1	WAS	vs	PHI	18	14	2	1	0	0	6	11	54.5	3	33.3	1	1	100.0	61.2				3
11	Mike Evans M. Evans	4/6/1980	2	SAS	@	HOU	11	11	2	2	0	0	3	8	37.5	4	50.0	3	4	75.0	56.4	0	2	0	1
12	Mike Gale M. Gale	4/6/1980	1	SAS	@	HOU	25	9	3	5	4	0	3	8	37.5	4	25.0	2	2	100.0	50.7			2	2
13	Calvin Murphy C. Murphy	4/6/1980	1	HOU	vs	SAS	36	33	3	5	5	0	16	24	66.7	1	100.0	0	0		68.8			2	3
14	Henry Bibby H. Bibby	4/6/1980	1	PHI	vs	ATL	25	13	0	1		0	4	6	66.7	1	100.0	4	4	100.0	83.8	0	0	1	4
15	Phil Ford P. Ford	4/6/1980	1	KCK	@	PHX	41	20	1	6	2	0	7	17	41.2	2	50.0	5	5	100.0	52.1	0	1	5	0
16	Scott Wedman S. Wedman	4/6/1980	2	KCK	@	PHX	41	24	8	2	0	0	9	24	37.5	2	100.0	4	4	100.0	46.6			0	3
17	Billy Ray Bates B. Ray Bates	4/6/1980	1	POR	@	SEA	36	26	3	3	1	0	12	22	54.5	3	33.3	1	1	100.0	57.9	2	1	7	4
18	Mike Bratz M. Bratz	4/8/1980	5	PHX	@	LAL	19	25	4	2	3	0	9	17	52.9	10	50.0	2	2	100.0	69.9	0	4	2	2
19	Don Buse D. Buse	4/8/1980	1	PHX	@	LAL	27	5	2	9	1	0	2	6	33.3	1	100.0	0	0		41.7	2	0	0	2
20	Paul Westphal P. Westphal	4/8/1980	1	PHX	@	LAL	29	14	1	4	2	1	6	14	42.9	1	100.0	1	1	100.0	48.5	0	1	2	5
21	Dennis Johnson D. Johnson	4/8/1980	1	SEA	vs	MIL	44	24	5	2	0	1	6	18	33.3	1	100.0	11	14	78.6	49.7	2	3	4	5
22	Rick Barry R. Barry	4/9/1980	1	HOU	@	BOS	17	3	0	3		0	1	6	16.7	1	100.0	0	0		25.0	0	0	0	1
23	Calvin Murphy C. Murphy	4/9/1980	1	HOU	@	BOS	44	23	0	4		0	8	13	61.5	2	50.0	6	6	100.0	73.5	0	0	2	4
24	Magic Johnson M. Johnson	4/9/1980	1	LAL	vs	PHX	48	25	13	11	6	0	6	11	54.5	1	100.0	12	14	85.7	72.8	4	9	4	6
25	Fred Brown F. Brown	4/9/1980	2	SEA	vs	MIL	18	10	5	5	0	0	3	11	27.3	2	100.0	2	2	100.0	42.1	2	3	1	1