The Boston Celtics have the most games by a team in a single NBA playoff run, with 26 games in 2007-08.

nba most playoff games played in one playoff run by a team

TEAM	GP	SEASON	MPG	PPG	RPG	APG	SPG	BPG	TPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	MIN	PTS	REB	AST	STL	BLK	TOV	PF
Boston Celtics	26	2007-08	240.0	94.0	40.0	21.5	7.6	4.3	12.8	33.6	75.1	44.7	6.0	16.8	35.9	20.8	26.6	78.3	6,240	2,444	1,040	559	198	112	333	631
Detroit Pistons	25	2004-05	242.0	90.3	42.3	20.5	7.3	6.1	12.2	34.5	79.0	43.7	4.5	13.9	32.6	16.8	22.6	74.2	6,050	2,258	1,057	512	183	153	305	526
New York Knicks	25	1993-94	241.0	88.8	41.6	20.3	8.1	5.4	16.5	32.4	75.8	42.8	4.4	13.3	33.1	19.5	26.6	73.1	6,025	2,219	1,039	507	203	135	412	637
Boston Celtics	24	2021-22	240.0	105.5	42.9	24.5	6.4	6.3	14.7	36.7	81.8	44.9	13.7	36.6	37.3	18.5	23.2	79.7	5,760	2,533	1,030	588	154	150	353	497
Toronto Raptors	24	2018-19	242.1	106.6	42.3	22.5	8.0	4.6	12.1	37.7	84.8	44.4	11.9	34.5	34.6	19.3	23.3	83.0	5,810	2,558	1,016	541	193	110	290	543
Golden State Warriors	24	2015-16	241.0	107.7	43.2	24.3	8.0	5.5	14.0	38.9	85.6	45.5	12.8	32.4	39.3	17.1	23.3	73.5	5,785	2,585	1,037	583	191	131	336	527
Boston Celtics	24	2009-10	241.0	93.9	39.1	21.1	8.0	4.6	13.9	34.3	75.7	45.3	5.8	16.0	36.3	19.5	25.8	75.5	5,785	2,253	939	507	192	110	334	590
Orlando Magic	24	2008-09	243.1	97.0	38.4	18.9	6.8	4.8	13.2	34.5	75.4	45.7	8.4	23.3	36.0	19.6	27.1	72.2	5,835	2,327	921	453	162	116	316	513
San Antonio Spurs	24	2002-03	241.0	94.8	45.5	20.7	7.8	6.9	15.2	33.8	76.8	44.1	5.3	15.2	35.1	21.8	30.6	71.2	5,785	2,275	1,093	497	186	165	365	514
Phoenix Suns	24	1992-93	244.2	104.8	41.4	23.5	7.6	8.0	13.7	38.8	82.1	47.2	4.2	11.5	36.1	23.1	30.7	75.3	5,860	2,515	994	563	182	192	328	542
Los Angeles Lakers	24	1987-88	240.0	105.6	40.5	25.9	7.2	4.7	14.0	40.8	81.8	49.9	2.4	6.0	39.3	21.5	27.7	77.9	5,760	2,534	973	622	173	113	336	508
Miami Heat	23	2022-23	241.1	108.3	40.3	23.6	7.0	3.5	11.7	39.7	86.8	45.8	12.8	33.7	38.0	16.1	19.8	81.3	5,545	2,492	926	542	161	81	269	462
Milwaukee Bucks	23	2020-21	242.2	110.3	49.0	22.8	7.8	4.2	12.7	42.1	91.1	46.2	11.2	35.0	32.1	14.9	20.8	71.8	5,570	2,537	1,126	525	180	97	293	413
San Antonio Spurs	23	2013-14	241.1	106.3	42.0	22.2	8.1	3.5	12.6	39.7	80.9	49.1	8.8	21.6	40.9	18.0	23.5	76.7	5,545	2,446	967	511	187	80	289	456
Miami Heat	23	2012-13	242.2	97.1	38.1	20.6	8.3	5.4	13.1	35.8	76.6	46.8	7.7	20.2	38.1	17.8	23.2	76.6	5,570	2,234	876	473	191	125	301	510
Miami Heat	23	2011-12	242.2	97.3	40.4	17.5	7.3	5.0	13.0	35.0	76.0	46.0	6.8	19.7	34.7	20.6	27.7	74.4	5,570	2,239	930	402	168	114	299	473
Los Angeles Lakers	23	2009-10	240.0	101.1	42.9	19.7	6.7	6.2	12.5	37.3	81.2	46.0	6.8	20.7	33.0	19.6	26.0	75.4	5,520	2,325	987	452	154	143	287	534
Los Angeles Lakers	23	2008-09	242.2	102.4	42.0	19.4	7.9	6.3	13.0	37.4	80.5	46.5	7.0	18.4	37.7	20.6	27.5	74.7	5,570	2,355	967	446	181	144	300	540
Dallas Mavericks	23	2005-06	244.3	99.7	42.7	15.3	6.6	4.3	12.8	36.1	80.1	45.1	4.8	15.1	31.7	22.7	28.0	80.9	5,620	2,294	981	351	152	99	295	587
Miami Heat	23	2005-06	241.1	96.3	42.0	17.5	7.0	4.6	15.5	34.8	72.4	48.1	6.3	19.1	33.3	20.3	30.9	65.5	5,545	2,214	967	402	161	105	357	553
San Antonio Spurs	23	2004-05	242.2	96.9	42.1	18.4	5.6	5.8	14.5	34.7	76.5	45.4	7.1	18.3	38.9	20.4	28.0	72.7	5,570	2,229	968	423	128	133	334	504
Detroit Pistons	23	2003-04	244.3	87.1	44.8	19.4	8.0	7.1	14.9	31.4	76.3	41.2	4.2	13.9	30.4	20.1	27.3	73.4	5,620	2,003	1,031	447	184	164	342	518
Philadelphia 76ers	23	2000-01	241.1	92.3	43.9	20.0	8.0	4.9	12.4	34.0	80.8	42.1	3.8	11.4	33.6	20.4	26.9	76.1	5,545	2,124	1,009	459	185	113	285	475
Los Angeles Lakers	23	1999-00	241.1	99.8	43.3	21.8	6.6	6.1	12.2	37.3	80.4	46.5	5.4	15.4	34.9	19.7	31.6	62.3	5,545	2,295	997	502	151	140	280	582
Indiana Pacers	23	1999-00	241.1	98.1	40.5	20.3	5.4	4.7	11.6	35.0	78.9	44.3	7.1	18.8	37.9	21.0	25.4	82.7	5,545	2,256	932	468	125	107	267	538