The Boston Celtics had their highest usage percentage in a season in 1986-87, at 20.0 percent.

Interpreted as:

highest usage rate in a regular season of celtics as of now

	TEAM	USG%	SEASON	GP	MPG	PPG	RPG	APG	SPG	BPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TPG	MIN	PTS	REB	AST	STL	BLK	TOV	PF	+/-
1	Celtics	20.0	1986-87	827	23.9	11.2	4.3	2.9	0.7	0.6	4.4	8.5	51.7	0.3	0.7	36.6	2.1	2.6	80.8	57.7	1.1	3.1	1.6	19,805	9,237	3,518	2,421	561	526	1,289	1,710
2	Celtics	20.0	1984-85	828	23.8	11.4	4.5	2.8	0.8	0.5	4.5	8.8	50.8	0.1	0.4	35.6	2.2	2.8	80.6	56.4	1.3	3.2	1.6	19,705	9,412	3,746	2,287	645	414	1,320	1,781
3	Celtics	20.0	1990-91	783	25.3	11.7	4.8	2.8	0.9	0.7	4.7	9.2	51.2	0.1	0.4	31.5	2.1	2.6	82.4	56.5	1.4	3.4	1.7	19,805	9,145	3,785	2,160	672	565	1,308	1,695
4	Celtics	20.0	1982-83	860	23.1	10.7	4.4	2.6	0.9	0.6	4.3	8.8	49.2	0.0	0.2	21.0	2.0	2.7	73.7	53.6	1.5	2.9	1.8	19,830	9,191	3,805	2,216	789	521	1,526	2,062
5	Celtics	20.0	1989-90	884	22.3	10.2	4.3	2.7	0.6	0.5	4.0	8.1	49.8	0.1	0.5	26.2	2.0	2.4	83.2	55.7	1.2	3.1	1.4	19,705	9,023	3,773	2,423	539	455	1,242	1,717
6	Celtics	20.0	1987-88	874	22.6	10.7	3.9	2.8	0.7	0.5	4.1	7.9	52.1	0.3	0.8	38.4	2.1	2.6	80.3	58.8	1.1	2.8	1.5	19,780	9,315	3,370	2,448	620	415	1,287	1,804
7	Celtics	20.0	1981-82	858	23.1	10.7	4.4	2.5	0.8	0.7	4.3	8.5	49.9	0.1	0.2	26.6	2.1	2.9	74.0	54.5	1.5	2.9	1.7	19,780	9,180	3,742	2,126	652	568	1,432	2,014
8	Celtics	20.0	1988-89	848	23.3	10.6	4.3	2.6	0.8	0.5	4.2	8.4	49.3	0.1	0.4	25.2	2.2	2.8	78.3	54.8	1.4	2.9	1.6	19,780	8,958	3,621	2,189	639	418	1,316	1,876
9	Celtics	20.0	1985-86	883	22.5	10.6	4.3	2.7	0.7	0.6	4.2	8.3	50.8	0.2	0.4	35.1	2.0	2.5	79.4	56.4	1.2	3.1	1.5	19,855	9,359	3,807	2,387	641	511	1,339	1,756
10	Celtics	20.0	1983-84	823	24.2	11.2	4.5	2.6	0.8	0.5	4.4	8.8	50.0	0.1	0.3	24.0	2.3	2.9	79.2	55.4	1.4	3.1	1.7	19,955	9,194	3,697	2,122	673	430	1,398	1,949
11	Celtics	20.0	1978-79	781	25.2	11.4	4.5	2.6	0.9	0.4	4.5	9.4	48.0				2.3	3.0	78.4	53.0	1.4	3.1	2.2	19,680	8,874	3,515	1,995	710	283	1,690	1,977
12	Celtics	20.0	2015-16	893	22.2	9.7	4.1	2.2	0.8	0.4	3.6	8.2	43.9	0.8	2.4	33.5	1.7	2.2	78.8	53.1	1.1	3.1	1.2	19,780	8,669	3,683	1,981	752	348	1,104	1,796	+1315
13	Celtics	19.9	1980-81	796	24.8	11.3	4.5	2.8	0.9	0.7	4.5	8.9	50.4	0.1	0.3	27.0	2.2	3.0	75.2	55.3	1.5	3.0	1.9	19,780	9,008	3,579	2,202	683	594	1,550	1,990
14	Celtics	19.9	1977-78	777	25.5	11.2	5.3	2.5	0.8	0.4	4.5	9.8	45.8				2.2	2.8	77.9	50.5	1.6	3.7	2.1	19,830	8,670	4,085	1,969	643	295	1,623	2,033
15	Celtics	19.9	1991-92	806	24.5	10.8	4.6	2.6	0.8	0.6	4.4	8.9	49.2	0.1	0.4	30.6	1.9	2.4	80.8	54.4	1.4	3.2	1.4	19,780	8,745	3,678	2,072	636	484	1,137	1,686
16	Celtics	19.9	2018-19	884	22.4	10.4	4.1	2.4	0.8	0.5	3.9	8.4	46.5	1.2	3.2	36.5	1.5	1.8	80.2	56.7	0.9	3.2	1.2	19,781	9,216	3,653	2,155	706	435	1,019	1,670	+1820
17	Celtics	19.9	2001-02	821	24.2	9.6	4.2	2.1	1.0	0.4	3.5	8.2	42.4	0.9	2.4	35.9	1.8	2.4	76.4	52.0	1.1	3.1	1.3	19,830	7,901	3,461	1,722	793	292	1,082	1,776	+905
18	Celtics	19.9	1994-95	806	24.6	10.5	4.3	2.2	0.8	0.4	3.9	8.5	46.4	0.4	1.2	36.8	2.1	2.8	75.3	53.7	1.4	2.9	1.6	19,805	8,428	3,476	1,783	612	361	1,269	1,975
19	Celtics	19.9	1999-00	877	22.5	9.3	4.0	2.0	0.9	0.3	3.5	7.8	44.4	0.5	1.4	33.1	1.8	2.5	74.5	52.0	1.3	2.8	1.4	19,730	8,146	3,528	1,741	795	286	1,221	2,223	-310
20	Celtics	19.9	1992-93	825	24.0	10.3	4.3	2.4	0.8	0.6	4.2	8.6	48.7	0.1	0.5	28.7	1.8	2.3	77.7	53.6	1.3	3.0	1.4	19,780	8,502	3,512	1,999	647	458	1,135	1,862
21	Celtics	19.9	2004-05	897	22.2	9.3	3.7	2.0	0.7	0.5	3.4	7.3	46.8	0.5	1.4	34.9	2.0	2.6	76.4	55.1	1.0	2.7	1.4	19,880	8,304	3,347	1,810	667	423	1,259	2,000	+355
22	Celtics	19.9	2024-25	864	23.0	11.0	4.3	2.5	0.7	0.5	4.0	8.5	46.2	1.7	4.6	36.8	1.4	1.8	79.9	59.1	1.1	3.2	1.1	19,830	9,534	3,716	2,144	589	452	931	1,303	+3735
23	Celtics	19.9	1979-80	828	24.0	11.2	4.4	2.7	1.0	0.4	4.4	8.9	49.0	0.2	0.5	38.4	2.3	3.0	77.9	55.0	1.5	3.0	1.8	19,880	9,303	3,684	2,198	809	308	1,490	1,974
24	Celtics	19.9	2002-03	793	25.0	9.6	4.2	2.0	0.9	0.4	3.4	8.2	41.5	0.9	2.7	33.4	1.9	2.5	74.2	51.4	1.1	3.1	1.4	19,830	7,599	3,320	1,575	720	303	1,105	1,758	-160
25	Celtics	19.9	2025-26	204	21.2	10.1	3.9	2.2	0.7	0.5	3.7	8.1	45.9	1.4	3.8	35.7	1.3	1.7	78.0	57.1	1.2	2.8	1.0	4,320	2,066	800	441	146	96	195	426	+410