Sly Williams had his most boards in a game on December 21, 1982 and on November 29, 1980, with 15 rebounds.

Interpreted as:

Sly Williams most rebounds in a regular-season game

	NAME	REB	DATE	TM		OPP	MIN	PTS	AST	STL	BLK	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TOV	PF
1	Sly Williams S. Williams	15	12/21/1982	NYK	vs	MIL	40	17	2	2	0	7	13	53.8	0	1	0.0	3	5	60.0	55.9	2	13	3	3
2	Sly Williams S. Williams	15	11/29/1980	NYK	vs	POR	44	17	3	2	1	8	15	53.3	0	0		1	3	33.3	52.1	4	11	2	2
3	Sly Williams S. Williams	13	4/15/1983	NYK	@	DET	24	14	3			6	9	66.7	0	0		2	4	50.0	65.1				3
4	Sly Williams S. Williams	13	11/18/1980	NYK	vs	PHI	41	21	4		0	8	16	50.0	0	0		5	6	83.3	56.3				2
5	Sly Williams S. Williams	13	10/25/1980	NYK	vs	NJN	36	17	1			6	15	40.0	0			5	5	100.0	49.4				4
6	Sly Williams S. Williams	12	12/26/1984	ATL	vs	NYK	41	15	3	1	2	7	18	38.9	0	0		1	2	50.0	39.7	6	6	1	2
7	Sly Williams S. Williams	12	11/13/1984	ATL	vs	MIL	32	19	2	0	0	8	20	40.0	1	1	100.0	2	3	66.7	44.6	4	8	5	2
8	Sly Williams S. Williams	12	3/8/1981	NYK	@	BOS	29	16	3			8	14	57.1	0	0		0	0		57.1				2
9	Sly Williams S. Williams	12	3/6/1981	NYK	vs	MIL	35	18	7	4	0	7	15	46.7	0	0		4	5	80.0	52.3			3	3
10	Sly Williams S. Williams	12	1/10/1981	NYK	@	CLE	27	7	8		3	3	7	42.9	0			1	2	50.0	44.4				5
11	Sly Williams S. Williams	12	11/22/1980	NYK	vs	GSW	41	19	0	4	0	8	15	53.3	0	0		3	9	33.3	50.1	6	6	2	4
12	Sly Williams S. Williams	11	11/8/1984	ATL	@	DAL	34	22	1	0	1	9	20	45.0	0	0		4	7	57.1	47.7	1	10	1	3
13	Sly Williams S. Williams	11	3/15/1981	NYK	vs	PHI	39	13	8		0	3	11	27.3	0	0		7	10	70.0	42.2				3
14	Sly Williams S. Williams	10	11/28/1984	ATL	vs	MIL	32	10	4	2	0	3	11	27.3	0	1	0.0	4	6	66.7	36.7	4	6	2	4
15	Sly Williams S. Williams	10	11/1/1984	ATL	vs	DET	30	19	6	1	0	8	13	61.5	0	1	0.0	3	5	60.0	62.5	3	7	5	4
16	Sly Williams S. Williams	10	11/30/1982	NYK	vs	UTA	25	18	4	0	0	8	13	61.5	0	0		2	2	100.0	64.8	2	8	4	1
17	Sly Williams S. Williams	10	2/24/1981	NYK	@	ATL	38	16	2		1	6	12	50.0	0	0		4	8	50.0	51.5			5	4
18	Sly Williams S. Williams	10	11/26/1980	NYK	@	CLE	37	8	0			3	14	21.4	0			2	5	40.0	24.7				2
19	Sly Williams S. Williams	10	11/14/1980	NYK	@	MIL	35	16	4	1	2	6	19	31.6	0			4	4	100.0	38.5			4	5
20	Sly Williams S. Williams	9	3/11/1984	ATL	@	MIL	28	11	4	0	0	5	10	50.0	0	0		1	3	33.3	48.6	4	5	3	4
21	Sly Williams S. Williams	9	2/23/1983	NYK	@	DET	33	19	1	1	0	3	13	23.1	0	0		13	16	81.3	47.4	5	4	3	4
22	Sly Williams S. Williams	9	12/29/1981	NYK	@	CHI	39	19	4	3	2	7	14	50.0	0	0		5	6	83.3	57.1	2	7	4	3
23	Sly Williams S. Williams	9	3/5/1981	NYK	@	DET	23	14	3			6	12	50.0	0	0		2	3	66.7	52.6				4
24	Sly Williams S. Williams	9	2/28/1981	NYK	vs	CHI	30	11	2	1	0	5	11	45.5	0	0		1	3	33.3	44.6	5	4	2	2
25	Sly Williams S. Williams	9	11/24/1980	NYK	vs	HOU	40	26	3	3	0	8	18	44.4	0			10	13	76.9	54.8			4	2