Len Chappell got his most rebounds in a game versus the Celtics on January 12, 1969, with 21 rebounds.

Interpreted as:

Len Chappell most rebounds in a regular-season game

	NAME	REB	DATE	TM		OPP	MIN	PTS	AST	FGM	FGA	FG%	FTM	FTA	FT%	TS%	PF
1	Len Chappell L. Chappell	21	1/12/1969	MIL	vs	BOS		22		9			4	7	57.1
2	Len Chappell L. Chappell	20	1/11/1964	NYK		LAL		23		7	22	31.8	9	11	81.8	42.8	4
3	Len Chappell L. Chappell	18	3/3/1968	DET	vs	CHI	33	22	0	8	13	61.5	6	10	60.0	63.2	4
4	Len Chappell L. Chappell	18	12/14/1963	NYK	vs	PHI		34	3	14	27	51.9	6	10	60.0	54.1	4
5	Len Chappell L. Chappell	17	12/11/1968	MIL		SFW	27	16	2	4	15	26.7	8	9	88.9	42.2	1
6	Len Chappell L. Chappell	17	3/17/1968	DET	@	LAL		28	0	13	16	81.3	2	3	66.7	80.8	3
7	Len Chappell L. Chappell	17	12/22/1967	DET	@	LAL		28	2	11	12	91.7	6	7	85.7	92.8	2
8	Len Chappell L. Chappell	16	10/31/1969	MIL	@	PHI	37	28	1	13	26	50.0	2	4	50.0	50.4	5
9	Len Chappell L. Chappell	16	2/2/1969	MIL	@	PHX	40	32	4	12	22	54.5	8	9	88.9	61.6	5
10	Len Chappell L. Chappell	16	12/29/1968	MIL	vs	CHI	40	14	1	5	10	50.0	4	7	57.1	53.5	4
11	Len Chappell L. Chappell	16	12/19/1968	MIL	@	CHI	48	35	1	12	25	48.0	11	12	91.7	57.8	3
12	Len Chappell L. Chappell	16	12/3/1963	NYK	vs	SFW	41	19	1	7	19	36.8	5	8	62.5	42.2	2
13	Len Chappell L. Chappell	15	2/9/1969	MIL	vs	SDR		23	1	9	19	47.4	5	7	71.4	52.1	4
14	Len Chappell L. Chappell	15	2/18/1968	DET	vs	SFW	22	17	2	4	9	44.4	9	11	81.8	61.4	4
15	Len Chappell L. Chappell	15	12/18/1967	DET		SEA	20	30	1	13	15	86.7	4	5	80.0	87.2	1
16	Len Chappell L. Chappell	15	12/17/1967	DET	@	SDR		2	1	1			0	0			1
17	Len Chappell L. Chappell	15	1/21/1964	NYK	vs	CIN		12		5	15	33.3	2	7	28.6	33.2	1
18	Len Chappell L. Chappell	15	2/28/1963	SYR		NYK	27	31		11			9	11	81.8		2
19	Len Chappell L. Chappell	14	2/25/1969	MIL	vs	SDR		26	2	11	22	50.0	4	5	80.0	53.7	4
20	Len Chappell L. Chappell	14	2/16/1969	MIL	vs	LAL		16		7			2	3	66.7
21	Len Chappell L. Chappell	14	12/14/1968	MIL	@	CIN		21		8	16	50.0	5	10	50.0	51.5	6
22	Len Chappell L. Chappell	14	10/23/1968	MIL	vs	NYK	36	17	3	5	12	41.7	7	7	100.0	56.4	6
23	Len Chappell L. Chappell	14	12/18/1963	NYK	@	BOS	37	23	1	9	21	42.9	5	7	71.4	47.8	2
24	Len Chappell L. Chappell	14	12/11/1963	NYK	@	PHI		12	0	5	18	27.8	2	3	66.7	31.1	4
25	Len Chappell L. Chappell	14	10/23/1963	NYK	@	BAL	32	11	0	4	16	25.0	3	4	75.0	31.0	3