Since 2018-19, Gregg Popovich has lost the most games by a coach, with 293 losses.

Interpreted as:

most regular-season losses NBA coaches since 2019

	COACH	L	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	Gregg Popovich	293	498	242.0	112.5	44.4	26.6	7.1	5.1	42.3	90.6	46.7	11.1	31.1	35.8	16.7	21.3	78.3	56.2	10.2	34.2	12.9	120,495	56,008	22,130	13,261	3,517	2,564	6,434	9,127
2	Rick Carlisle	265	503	241.3	114.9	43.5	25.9	7.0	5.2	42.0	89.3	47.1	13.3	37.0	36.0	17.5	22.6	77.3	57.9	10.1	33.4	13.0	121,370	57,794	21,889	13,005	3,524	2,591	6,522	10,245
3	Dwane Casey	263	384	241.8	107.2	43.0	23.4	7.3	4.4	38.9	87.1	44.6	11.7	33.5	34.7	17.8	23.3	76.1	55.0	10.7	32.4	13.9	92,835	41,173	16,521	8,985	2,794	1,702	5,329	8,199
4	Steve Clifford	247	391	241.0	107.3	44.0	24.3	7.2	5.0	39.9	88.9	44.9	11.2	32.6	34.5	16.2	21.0	77.2	54.7	10.2	33.8	12.8	94,240	41,957	17,200	9,508	2,834	1,955	4,993	7,232
5	Billy Donovan	238	500	242.0	112.5	44.1	24.5	7.7	4.6	42.0	88.8	47.3	11.5	31.8	36.1	17.1	21.9	78.4	57.2	9.8	34.3	13.0	121,000	56,266	22,057	12,235	3,870	2,320	6,504	9,743
6	J.B. Bickerstaff	225	439	242.0	108.4	42.8	25.3	7.5	4.7	40.0	85.6	46.8	11.5	32.3	35.5	16.8	22.0	76.4	56.8	9.9	32.9	13.4	106,235	47,569	18,791	11,098	3,274	2,066	5,886	8,297
7	Steve Kerr	223	491	241.3	114.5	45.0	28.3	7.9	4.8	42.0	89.3	47.0	14.2	38.0	37.3	16.3	20.8	78.4	58.2	10.2	34.8	14.4	118,490	56,202	22,118	13,891	3,863	2,373	7,055	10,184
8	Erik Spoelstra	219	498	241.7	109.4	43.2	25.3	7.7	3.9	39.5	85.5	46.2	12.7	34.9	36.4	17.6	22.4	78.7	57.3	9.5	33.7	13.2	120,345	54,463	21,504	12,592	3,848	1,942	6,576	9,592
9	Nick Nurse	214	497	241.6	112.2	43.8	24.1	8.8	5.2	40.9	89.5	45.7	12.5	34.8	35.8	17.9	22.5	79.6	56.5	11.0	32.8	12.4	120,080	55,784	21,744	11,995	4,376	2,578	6,150	10,236
10	Taylor Jenkins	194	419	241.1	113.5	46.4	26.4	8.7	5.9	42.4	91.5	46.3	11.9	33.9	35.2	16.9	22.4	75.3	56.0	11.8	34.6	13.6	101,035	47,565	19,442	11,047	3,638	2,458	5,680	8,328
11	Quin Snyder	184	440	241.3	114.9	46.1	24.7	7.3	4.9	41.4	88.3	46.9	13.8	37.5	36.8	18.2	23.5	77.6	58.2	10.9	35.2	13.8	106,150	50,546	20,282	10,865	3,219	2,169	6,063	8,533
12	Chauncey Billups	183	273	241.1	108.6	42.1	23.3	7.5	4.6	39.4	87.6	45.0	12.3	35.2	35.0	17.3	22.2	78.2	55.7	11.0	31.1	14.1	65,820	29,637	11,505	6,369	2,061	1,256	3,845	5,559
13	Monty Williams	183	391	241.3	113.4	43.9	26.8	7.4	4.5	42.2	89.0	47.4	11.8	32.5	36.4	17.1	21.2	80.7	57.7	10.2	33.7	13.2	94,340	44,339	17,164	10,493	2,894	1,777	5,169	8,043
14	Mark Daigneault	180	345	241.4	112.0	44.1	24.1	8.2	5.1	41.4	90.0	46.0	12.5	35.5	35.1	16.8	21.4	78.3	56.3	10.1	34.0	13.0	83,300	38,645	15,223	8,325	2,823	1,743	4,493	6,633
15	Michael Malone	179	498	241.5	113.7	44.4	28.0	7.7	4.6	42.8	88.3	48.5	11.8	32.3	36.6	16.2	21.0	77.1	58.3	10.5	33.9	13.1	120,270	56,624	22,134	13,966	3,822	2,267	6,520	9,617
16	Stephen Silas	177	236	240.7	109.8	43.7	23.2	7.4	4.7	39.8	87.9	45.2	12.5	36.9	33.9	17.8	24.1	73.6	55.7	10.8	32.8	15.2	56,815	25,911	10,308	5,466	1,746	1,117	3,576	4,778
17	Tom Thibodeau	174	385	241.6	111.2	45.4	23.3	7.2	4.6	40.4	88.0	46.0	12.6	34.2	36.8	17.8	23.1	77.1	56.7	11.4	34.0	12.3	93,025	42,814	17,493	8,957	2,781	1,785	4,722	7,525
18	Doc Rivers	171	454	241.8	113.8	44.1	24.3	7.6	5.1	40.9	86.3	47.4	11.9	31.7	37.6	20.1	25.3	79.5	58.4	9.4	34.7	13.1	109,760	51,656	20,016	11,014	3,455	2,314	5,955	9,396
19	James Borrego	163	301	241.9	110.0	43.8	25.5	7.6	4.7	40.2	88.9	45.2	12.9	35.9	36.0	16.6	21.8	76.3	55.8	10.6	33.2	13.0	72,815	33,106	13,179	7,689	2,291	1,419	3,922	5,699
20	Jamahl Mosley	155	275	241.1	108.5	43.1	23.9	7.6	5.0	39.6	86.4	45.9	11.3	33.5	33.8	17.9	23.1	77.7	56.2	10.0	33.1	14.0	66,300	29,838	11,866	6,569	2,101	1,370	3,857	5,467
21	Tyronn Lue	152	352	240.9	112.5	43.6	24.4	7.5	4.6	41.2	86.7	47.5	12.9	33.7	38.5	17.2	21.3	80.5	58.5	9.8	33.9	13.0	84,780	39,605	15,352	8,601	2,650	1,605	4,586	6,700
22	Willie Green	142	274	241.0	112.1	44.2	25.7	8.4	4.3	41.3	87.8	47.0	11.3	31.7	35.7	18.2	23.3	78.2	57.2	11.1	33.0	13.4	66,035	30,726	12,100	7,039	2,303	1,189	3,658	5,307
23	Nate McMillan	142	334	241.0	112.0	43.6	25.1	7.5	4.8	42.1	88.6	47.5	11.0	29.9	36.9	16.8	21.2	79.2	57.2	9.6	34.0	12.3	80,510	37,397	14,576	8,400	2,520	1,597	4,114	6,414
24	Chris Finch	139	313	241.6	114.6	43.3	26.1	8.4	5.6	41.6	88.0	47.3	13.4	36.6	36.6	18.0	23.3	77.1	58.3	10.0	33.3	14.0	75,620	35,856	13,538	8,157	2,623	1,745	4,386	6,399
25	Luke Walton	138	243	241.2	111.7	43.7	24.8	7.6	4.8	41.9	89.3	47.0	11.7	33.1	35.2	16.1	21.9	73.7	56.4	9.8	33.9	14.0	58,620	27,135	10,623	6,026	1,839	1,176	3,392	5,026