Between the 2017-18 and 2020-21 seasons, the Chicago Bulls had the worst record by a team, with a record of 102-199.

which nba team had the worst record from 2017-18 to 2020-21

TEAM	REC	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
Chicago Bulls	102-199	301	.339	241.9	106.2	43.6	23.8	7.9	4.0	14.6	40.0	88.5	45.2	11.1	31.2	35.6	15.0	19.5	77.2	72,815	31,959	13,137	7,156	2,363	1,209	4,400	6,013
New York Knicks	108-194	302	.358	241.7	105.4	45.0	21.7	7.0	5.0	14.0	39.6	87.9	45.0	9.8	27.7	35.5	16.4	21.8	75.6	73,005	31,830	13,598	6,555	2,120	1,521	4,236	6,332
Cleveland Cavaliers	110-191	301	.365	241.3	106.6	42.9	22.7	7.0	3.5	14.7	39.5	86.5	45.7	10.9	30.7	35.5	16.7	21.6	77.0	72,640	32,082	12,907	6,830	2,122	1,043	4,419	5,662
Atlanta Hawks	114-189	303	.376	241.7	110.4	44.2	24.4	7.7	4.8	15.5	40.2	88.7	45.3	12.2	34.3	35.4	17.8	22.7	78.4	73,245	33,443	13,400	7,406	2,339	1,450	4,711	6,478
Orlando Magic	121-188	309	.392	240.8	105.5	44.2	23.7	7.3	5.0	13.4	39.2	88.2	44.5	10.9	31.3	34.8	16.1	20.9	77.2	74,410	32,598	13,659	7,334	2,260	1,559	4,134	5,678
Detroit Pistons	120-182	302	.397	241.9	106.1	43.4	23.3	7.3	4.4	14.3	39.0	86.7	44.9	11.6	32.3	35.9	16.5	22.1	74.9	73,055	32,041	13,102	7,045	2,218	1,318	4,320	6,095
Phoenix Suns	125-184	309	.405	241.6	109.8	42.7	24.7	7.7	4.5	14.7	40.7	87.7	46.4	10.8	30.7	35.0	17.7	22.4	79.3	74,660	33,931	13,198	7,626	2,380	1,390	4,547	6,722
Memphis Grizzlies	127-182	309	.411	241.3	106.8	43.7	24.7	8.2	5.2	14.4	39.9	87.2	45.7	10.3	29.4	34.9	16.9	21.8	77.3	74,560	33,014	13,492	7,633	2,528	1,606	4,444	6,596
Sacramento Kings	128-180	308	.416	241.1	109.0	42.6	24.0	7.9	4.4	13.7	41.3	89.1	46.4	11.2	30.3	37.0	15.2	20.4	74.3	74,245	33,583	13,127	7,400	2,421	1,354	4,226	6,385
Minnesota Timberwolves	125-175	300	.417	242.0	111.7	43.7	24.2	8.5	5.1	13.7	41.0	89.9	45.6	10.9	31.5	34.7	18.8	24.2	77.8	72,600	33,524	13,115	7,250	2,559	1,516	4,103	6,036
Washington Wizards	134-174	308	.435	242.0	112.8	43.1	25.5	7.9	4.3	14.3	41.7	89.3	46.7	10.8	30.3	35.8	18.6	24.0	77.4	74,545	34,728	13,290	7,855	2,430	1,338	4,407	6,636
Charlotte Hornets	131-170	301	.435	241.6	108.0	44.0	23.8	7.1	4.6	13.5	39.2	87.6	44.7	11.9	32.9	36.0	17.8	23.3	76.4	72,715	32,523	13,252	7,157	2,143	1,390	4,060	5,480
Dallas Mavericks	142-169	311	.457	241.4	109.9	44.2	23.4	6.5	4.3	12.8	39.8	87.5	45.5	13.2	37.1	35.7	17.0	22.2	76.4	75,065	34,189	13,739	7,272	2,021	1,335	3,996	6,086
New Orleans Pelicans	142-166	308	.461	242.1	114.3	46.3	26.7	7.6	5.2	15.2	42.9	90.3	47.5	11.1	31.2	35.6	17.5	23.4	74.8	74,570	35,219	14,275	8,215	2,351	1,599	4,671	6,121
Brooklyn Nets	153-155	308	.497	242.6	112.1	45.8	24.6	6.5	4.6	14.8	40.4	88.5	45.7	13.1	36.5	36.0	18.1	23.7	76.5	74,720	34,530	14,111	7,585	1,999	1,431	4,555	6,332
San Antonio Spurs	160-147	307	.521	241.8	109.7	44.4	24.1	7.0	5.2	12.3	41.3	88.3	46.8	9.7	26.4	36.8	17.4	21.8	79.8	74,230	33,676	13,621	7,391	2,152	1,603	3,786	5,565
Oklahoma City Thunder	163-145	308	.529	241.8	109.5	45.5	22.1	8.3	4.9	14.4	40.4	89.0	45.4	11.2	32.0	34.9	17.6	23.9	73.6	74,470	33,741	14,008	6,817	2,563	1,506	4,440	6,187
Miami Heat	167-142	309	.540	242.0	107.1	44.0	24.7	7.6	4.9	14.5	39.3	85.4	46.0	12.1	33.5	36.1	16.5	21.8	75.5	74,785	33,108	13,591	7,640	2,363	1,503	4,487	6,224
Los Angeles Lakers	166-141	307	.541	241.8	110.6	45.8	24.8	7.9	5.5	15.5	41.6	88.4	47.0	10.6	30.7	34.5	16.9	23.5	72.0	74,230	33,968	14,056	7,623	2,425	1,682	4,751	6,285
Golden State Warriors	169-132	301	.561	241.1	113.1	44.0	28.1	8.0	5.9	14.9	41.9	87.8	47.7	12.4	33.3	37.3	17.0	21.2	80.1	72,565	34,053	13,238	8,469	2,402	1,778	4,483	6,194
Indiana Pacers	175-134	309	.566	241.2	109.4	42.7	25.3	8.4	5.1	13.4	41.8	88.2	47.4	10.2	27.8	36.7	15.5	20.0	77.6	74,535	33,806	13,197	7,809	2,588	1,580	4,152	6,036
Portland Trail Blazers	179-131	310	.577	241.1	112.7	45.9	21.1	6.7	5.3	12.9	41.2	89.9	45.9	12.4	33.2	37.2	17.8	22.0	81.0	74,750	34,931	14,223	6,542	2,080	1,650	3,989	6,236
Houston Rockets	179-129	308	.581	241.1	113.2	43.1	22.0	8.4	5.0	14.1	39.5	87.5	45.1	15.3	43.4	35.1	19.0	24.5	77.7	74,270	34,869	13,268	6,764	2,572	1,529	4,346	6,373
L.A. Clippers	186-122	308	.604	240.9	113.5	45.3	23.6	7.2	4.5	14.3	41.2	87.2	47.3	11.4	29.9	38.2	19.7	25.1	78.7	74,195	34,965	13,940	7,266	2,209	1,390	4,398	6,528
Boston Celtics	188-120	308	.610	241.5	110.5	44.8	23.8	8.0	5.2	13.7	40.7	88.5	46.1	12.5	33.9	37.0	16.5	21.0	78.7	74,395	34,037	13,801	7,341	2,461	1,597	4,207	6,312