Since 2018-19, Gregg Popovich has lost the most games by a coach, with 310 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	310	525	241.9	112.6	44.4	26.8	7.1	5.2	42.3	90.6	46.7	11.2	31.4	35.8	16.7	21.3	78.3	56.3	10.2	34.2	12.9	127,000	59,096	23,336	14,052	3,741	2,735	6,775	9,570
2	Rick Carlisle	282	557	241.4	115.3	43.4	26.3	7.1	5.2	42.3	89.4	47.3	13.3	37.0	36.0	17.4	22.5	77.5	58.0	10.1	33.4	12.8	134,455	64,208	24,195	14,628	3,980	2,890	7,130	11,213
3	Billy Donovan	266	554	241.9	113.0	44.3	24.9	7.7	4.6	42.1	89.1	47.2	11.8	32.7	36.1	17.0	21.7	78.7	57.3	9.9	34.5	13.1	134,035	62,600	24,564	13,801	4,286	2,569	7,235	10,667
4	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
5	Nick Nurse	256	554	241.5	112.1	43.3	24.1	8.8	5.1	40.9	89.3	45.7	12.5	35.2	35.6	17.9	22.5	79.5	56.5	10.9	32.4	12.4	133,810	62,122	23,998	13,348	4,890	2,841	6,854	11,281
6	Erik Spoelstra	252	555	241.8	109.4	43.2	25.4	7.7	3.9	39.6	85.6	46.3	12.8	35.1	36.4	17.4	22.1	78.8	57.4	9.5	33.7	13.2	134,200	60,728	23,967	14,105	4,289	2,168	7,310	10,461
7	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
8	J.B. Bickerstaff	246	493	241.8	109.4	43.0	25.4	7.6	4.8	40.4	86.2	46.9	11.6	32.5	35.6	16.9	22.1	76.6	57.0	10.1	32.9	13.4	119,220	53,934	21,193	12,545	3,743	2,348	6,604	9,430
9	Steve Kerr	245	547	241.2	114.4	45.0	28.4	8.0	4.8	41.8	89.3	46.8	14.3	38.5	37.1	16.5	21.0	78.5	58.1	10.4	34.6	14.2	131,955	62,592	24,608	15,524	4,396	2,629	7,779	11,236
10	Taylor Jenkins	214	464	241.1	114.3	46.4	26.5	8.7	5.8	42.6	91.8	46.4	12.1	34.2	35.3	17.0	22.5	75.7	56.2	12.0	34.5	13.7	111,860	53,039	21,546	12,299	4,037	2,694	6,336	9,251
11	Quin Snyder	212	494	241.2	115.3	45.8	25.2	7.6	4.9	41.7	88.6	47.0	13.8	37.6	36.7	18.1	23.4	77.6	58.3	11.0	34.9	13.8	119,160	56,974	22,628	12,459	3,738	2,438	6,836	9,562
12	Chauncey Billups	211	328	241.2	109.2	42.7	23.5	7.7	4.7	39.7	88.1	45.1	12.5	35.8	34.9	17.3	22.2	77.8	55.8	11.5	31.3	14.2	79,120	35,825	14,016	7,707	2,515	1,529	4,664	6,583
13	Michael Malone	200	552	241.6	114.4	44.6	28.3	7.7	4.6	43.1	88.5	48.8	11.9	32.4	36.7	16.3	21.1	77.2	58.5	10.6	34.0	13.1	133,355	63,174	24,621	15,643	4,230	2,541	7,251	10,554
14	Tom Thibodeau	195	440	241.9	111.7	45.1	23.8	7.4	4.5	40.8	88.3	46.2	12.5	34.1	36.6	17.7	22.8	77.4	56.8	11.5	33.6	12.3	106,425	49,149	19,831	10,451	3,252	1,990	5,393	8,473
15	Doc Rivers	193	510	241.7	114.1	44.0	24.5	7.6	5.0	41.1	86.4	47.5	12.2	32.2	37.7	19.8	25.0	79.2	58.6	9.3	34.8	13.0	123,250	58,195	22,455	12,480	3,863	2,551	6,649	10,376
16	Mark Daigneault	189	400	241.3	113.6	44.3	24.6	8.4	5.1	42.0	90.4	46.4	12.8	36.0	35.6	16.8	21.4	78.9	56.9	10.2	34.1	12.7	96,525	45,427	17,722	9,837	3,343	2,040	5,093	7,700
17	Jamahl Mosley	184	328	241.1	107.9	42.9	23.7	7.8	5.1	39.4	86.3	45.6	11.3	33.6	33.6	17.9	23.0	77.6	55.9	10.2	32.7	13.8	79,070	35,386	14,077	7,763	2,556	1,660	4,513	6,530
18	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
19	Willie Green	180	328	241.1	112.1	44.1	25.9	8.4	4.5	41.3	88.2	46.9	11.5	32.3	35.6	17.9	23.1	77.7	57.0	11.3	32.9	13.4	79,070	36,782	14,471	8,498	2,746	1,472	4,399	6,297
20	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
21	Tyronn Lue	172	406	241.0	112.8	43.6	24.6	7.8	4.6	41.3	86.7	47.7	12.8	33.6	38.3	17.2	21.4	80.6	58.7	9.8	33.8	13.0	97,840	45,784	17,708	9,968	3,149	1,857	5,295	7,669
22	Mike Budenholzer	166	473	241.3	117.1	47.8	25.8	7.3	5.0	42.8	89.9	47.6	14.2	38.5	36.8	17.3	22.5	76.7	58.6	10.0	37.8	13.5	114,120	55,374	22,619	12,211	3,463	2,370	6,388	8,729
23	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
24	Will Hardy	161	246	241.5	114.9	45.6	26.2	6.5	5.1	41.6	89.5	46.5	13.4	38.0	35.2	18.3	22.9	79.7	57.7	12.0	33.6	15.5	59,415	28,259	11,213	6,454	1,592	1,246	3,801	4,751
25	Chris Finch	160	369	241.6	114.8	43.5	26.1	8.3	5.5	41.6	88.1	47.3	13.6	37.0	36.8	17.9	23.2	77.3	58.4	10.2	33.3	13.9	89,160	42,376	16,064	9,649	3,047	2,027	5,122	7,427