The Philadelphia Warriors have the most boards by a team in a loss, with 98 rebounds against the Lakers on December 8, 1961.

Interpreted as:

Most team rebounds in a regular-season loss all-time

	TEAM	REB	L	DATE	TM		OPP	RESULT	MIN	PTS	AST	FGM	FGA	FG%	FTM	FTA	FT%	TS%	PF
1	Warriors	98	1	12/8/1961	PHI	vs	LAL	L 147-151	315	147	34	57	153	37.3	33	56	58.9	41.4	35
2	Knicks	92	1	11/19/1960	NYK	@	PHI	L 111-121	240	111	25	42	129	32.6	27	36	75.0	38.3	33
3	Nationals	90	1	3/11/1961	SYR	@	BOS	L 116-126	240	116	25	44	130	33.8	28	36	77.8	39.8	30
4	Warriors	90	1	11/24/1960	PHI	vs	BOS	L 129-132	240	129	25	52	129	40.3	25	41	61.0	43.9	29
5	Warriors	89	1	11/26/1965	SFW	vs	PHI	L 120-132	240	120	22	50	122	41.0	20	29	69.0	44.5	30
6	Hawks	89	1	2/5/1961	STL	@	BOS	L 121-123	240	121	21	45	126	35.7	31	39	79.5	42.3	23
7	Knicks	89	1	1/28/1961	NYK	@	PHI	L 108-114	240	108	17	44	131	33.6	20	33	60.6	37.1	29
8	Celtics	89	1	12/27/1960	BOS	@	PHI	L 101-116	240	101	18	39	136	28.7	23	28	82.1	34.0	29
9	Celtics	89	1	12/8/1960	BOS		CIN	L 115-118	240	115		44			27	36	75.0		30
10	Nationals	87	1	1/12/1961	SYR		BOS	L 118-124	265	118	20	50	124	40.3	18	32	56.3	42.7	24
11	Nationals	87	1	2/6/1960	SYR	@	PHI	L 126-129	240	126	27	51	137	37.2	24	33	72.7	41.6	34
12	Nationals	86	1	1/19/1962	SYR	@	BOS	L 103-128	240	103	13	42	126	33.3	19	25	76.0	37.6	23
13	Celtics	86	1	2/11/1961	BOS	vs	NYK	L 107-129	240	107	17	43	126	34.1	21	26	80.8	38.9	35
14	Lakers	85	1	11/15/1963	LAL	@	PHI	L 97-99	240	97	18	36	102	35.3	25	36	69.4	41.2	21
15	Royals	85	1	1/6/1963	CIN	vs	LAL	L 119-120	265	119		50	128	39.1	19	25	76.0	42.8	27
16	Packers	85	1	12/1/1961	CHI	@	BOS	L 121-140	240	121	17	49	114	43.0	23	37	62.2	46.4	24
17	Nationals	85	1	11/4/1961	SYR	@	BOS	L 107-127	240	107	18	43	133	32.3	21	30	70.0	36.6	34
18	Lakers	85	1	12/17/1960	LAL	@	BOS	L 112-140	240	112	16	44	122	36.1	24	33	72.7	41.0	26
19	Celtics	84	1	10/20/1973	BOS	@	CAP	L 87-96	240	87	19	35	121	28.9	17	25	68.0	33.0	18
20	Knicks	84	1	2/5/1961	NYK	@	PHI	L 128-136	265	128	23	49	129	38.0	30	41	73.2	43.5	29
21	Royals	84	1	11/1/1960	CIN	vs	PHI	L 113-131	240	113	35	45	112	40.2	23	29	79.3	45.3	31
22	Bullets	83	1	3/11/1970	BAL	@	SFW	L 112-115	290	112	18	47	143	32.9	18	25	72.0	36.4	24
23	Rockets	83	1	1/10/1969	SDR	vs	BAL	L 104-106	240	104	22	38	108	35.2	28	40	70.0	41.4	29
24	Warriors	83	1	12/5/1964	SFW	vs	BOS	L 81-105	240	81	15	28	105	26.7	25	40	62.5	33.0	21
25	Celtics	83	1	10/29/1960	BOS	vs	PHI	L 103-131	240	103	20	43	132	32.6	17	26	65.4	35.9	26