The Portland Trail Blazers had their best record in a season in 1990-91, with a record of 63-19.

what was the best record in a season for the trail blazers

TEAM	REC	SEASON	GP	W%	MPG	PPG	RPG	APG	SPG	BPG	TPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	MIN	PTS	REB	AST	STL	BLK	TOV	PF
Portland Trail Blazers	63-19	1990-91	82	.768	242.7	114.7	45.9	27.5	8.8	5.0	16.0	43.6	89.9	48.5	4.2	11.0	37.7	23.3	31.0	75.3	19,905	9,407	3,763	2,254	724	410	1,309	1,975
Portland Trail Blazers	59-23	1999-00	82	.720	241.2	97.5	43.0	23.5	7.7	4.8	15.2	36.8	78.4	47.0	5.0	13.8	36.1	18.8	24.7	76.0	19,780	7,991	3,526	1,925	633	396	1,243	1,865
Portland Trail Blazers	59-23	1989-90	82	.720	242.4	114.2	47.6	25.4	9.1	4.4	16.5	43.6	92.0	47.3	2.3	6.9	33.6	24.8	33.3	74.3	19,880	9,365	3,907	2,085	749	364	1,356	2,048
Portland Trail Blazers	58-24	1977-78	82	.707	240.6	107.7	47.2	25.2	9.7	4.8	19.8	43.4	89.8	48.3				20.9	27.5	76.0	19,730	8,829	3,873	2,067	798	390	1,625	2,068
Portland Trail Blazers	35-15	1998-99	50	.700	243.5	94.8	44.3	21.5	8.2	5.8	15.4	34.9	79.1	44.2	4.9	13.5	36.4	20.0	27.0	74.3	12,175	4,742	2,216	1,073	411	290	771	1,126
Portland Trail Blazers	57-25	1991-92	82	.695	242.4	111.4	46.9	25.2	9.2	5.0	16.2	42.4	89.7	47.3	4.0	11.5	34.4	22.7	30.0	75.4	19,880	9,135	3,843	2,065	753	410	1,328	1,983
Portland Trail Blazers	54-28	2013-14	82	.659	242.1	106.7	46.4	23.2	5.5	4.7	13.7	39.1	87.0	45.0	9.4	25.3	37.2	19.1	23.5	81.5	19,855	8,753	3,808	1,904	454	387	1,125	1,576
Portland Trail Blazers	54-28	2008-09	82	.659	241.8	99.4	41.7	20.3	6.7	4.9	12.9	36.8	79.2	46.5	7.3	19.0	38.3	18.5	24.2	76.5	19,830	8,153	3,420	1,667	550	402	1,055	1,671
Portland Trail Blazers	53-29	2018-19	82	.646	242.1	114.7	48.0	23.0	6.7	5.0	13.8	42.3	90.6	46.7	11.0	30.7	35.9	19.0	23.3	81.4	19,855	9,402	3,935	1,887	546	413	1,135	1,669
Portland Trail Blazers	53-29	1987-88	82	.646	240.6	116.1	45.6	28.1	8.9	4.2	16.5	44.6	91.0	49.1	1.4	4.6	30.8	25.4	32.9	77.0	19,730	9,518	3,742	2,307	726	347	1,351	2,091
Portland Trail Blazers	51-31	2014-15	82	.622	242.1	102.8	45.9	21.9	6.4	4.5	13.6	38.7	86.0	45.0	9.8	27.2	36.2	15.5	19.4	80.1	19,855	8,429	3,760	1,799	525	372	1,117	1,494
Portland Trail Blazers	51-31	1992-93	82	.622	242.7	108.5	45.5	24.0	9.4	5.2	14.8	41.0	89.5	45.8	3.4	10.3	32.6	23.2	31.1	74.5	19,905	8,898	3,733	1,969	770	425	1,215	1,892
Portland Trail Blazers	50-32	2009-10	82	.610	242.1	98.1	40.2	20.4	6.4	4.3	12.3	36.3	78.7	46.1	6.0	16.9	35.4	19.6	24.8	79.0	19,855	8,045	3,296	1,674	523	350	1,012	1,715
Portland Trail Blazers	50-32	2002-03	82	.610	242.1	95.2	41.1	22.7	8.8	3.9	15.2	36.4	79.2	46.0	4.6	14.0	33.0	17.7	23.7	74.5	19,855	7,803	3,370	1,860	725	316	1,248	1,634
Portland Trail Blazers	50-32	2000-01	82	.610	241.2	95.4	42.0	23.9	8.2	5.1	15.3	36.6	78.3	46.8	4.5	12.9	34.9	17.6	23.2	76.2	19,780	7,824	3,441	1,963	672	419	1,257	1,745
Portland Trail Blazers	49-33	2017-18	82	.598	240.9	105.6	45.5	19.5	7.0	5.2	13.5	39.3	87.0	45.2	10.3	28.1	36.6	16.7	20.9	80.0	19,755	8,661	3,728	1,599	573	423	1,109	1,599
Portland Trail Blazers	49-33	2001-02	82	.598	241.8	96.6	43.0	23.5	8.6	4.5	14.3	36.6	81.4	45.0	5.7	16.1	35.4	17.7	23.2	76.3	19,830	7,925	3,529	1,926	702	368	1,172	1,613
Portland Trail Blazers	49-33	1996-97	82	.598	242.1	99.0	43.3	20.9	7.8	5.3	16.5	36.6	78.8	46.4	6.1	17.1	35.8	19.7	27.6	71.3	19,855	8,114	3,552	1,710	640	435	1,357	1,928
Portland Trail Blazers	49-33	1986-87	82	.598	241.5	117.9	43.8	28.8	9.4	4.7	18.9	44.5	88.4	50.4	1.2	4.1	28.9	27.7	35.7	77.5	19,805	9,667	3,593	2,359	767	387	1,546	2,082
Portland Trail Blazers	49-33	1976-77	82	.598	240.6	111.7	48.3	24.3	10.6	6.0	21.4	44.2	91.9	48.1				23.4	30.7	76.2	19,730	9,163	3,963	1,990	868	492	1,757	2,220
Portland Trail Blazers	48-34	2010-11	82	.585	241.5	96.3	39.3	21.2	8.0	4.4	13.0	36.0	80.5	44.7	6.3	18.3	34.5	18.0	22.4	80.4	19,805	7,896	3,226	1,736	660	358	1,070	1,585
Portland Trail Blazers	48-34	1983-84	82	.585	241.5	113.1	42.0	25.4	9.9	4.8	18.1	44.3	87.7	50.5	0.3	1.6	19.4	24.2	32.2	75.4	19,805	9,277	3,445	2,082	814	397	1,483	2,134
Portland Trail Blazers	42-30	2020-21	72	.583	240.3	116.1	44.5	21.3	6.9	5.0	11.1	41.3	91.1	45.3	15.7	40.8	38.5	17.8	21.6	82.3	17,305	8,360	3,207	1,531	496	363	799	1,362
Portland Trail Blazers	47-35	1993-94	82	.573	240.9	107.3	45.9	25.2	9.1	5.0	14.8	41.1	90.6	45.4	3.3	9.4	35.3	21.7	29.2	74.3	19,755	8,795	3,762	2,070	744	409	1,210	1,827
Portland Trail Blazers	46-36	1997-98	82	.561	241.8	94.3	44.0	21.5	7.1	5.7	16.9	35.2	78.0	45.1	4.0	12.8	30.9	20.0	27.1	73.7	19,830	7,734	3,608	1,766	585	464	1,383	1,859