I didn't find anything for this season, but the Golden State Warriors had a record of 46-36 in the third quarter in 2023-24.

Interpreted as:

teams record trailing after 3 qtr this season

	TEAM	REC	W%	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	Warriors	46-36	.561	82	60.0	30.5	12.0	7.3	1.9	1.2	11.1	23.0	48.3	3.7	9.4	39.5	4.5	5.9	77.7	59.6	3.3	8.7	3.2	4,920	2,498	982	601	154	102	263	449
2	Lakers	47-35	.573	82	60.0	29.4	10.9	7.0	1.9	1.5	10.6	21.4	49.7	3.2	7.8	41.3	4.8	6.2	78.6	60.8	1.9	9.0	3.5	4,920	2,408	890	578	156	122	290	378
3	Nuggets	57-25	.695	82	60.0	28.6	10.7	7.5	1.9	1.3	10.8	21.6	50.0	2.8	7.7	36.5	4.2	5.6	74.3	59.3	2.6	8.2	3.2	4,920	2,344	881	615	159	106	265	400
4	Suns	49-33	.598	82	60.0	30.5	11.1	7.1	1.8	1.3	11.0	21.4	51.6	3.4	8.3	41.2	5.0	6.2	80.4	63.1	2.2	8.9	3.6	4,920	2,499	909	580	150	107	293	458
5	Celtics	64-18	.780	82	60.0	29.0	11.0	6.4	1.8	1.6	10.4	21.9	47.3	4.0	10.4	38.3	4.4	5.4	81.0	59.8	2.5	8.5	3.1	4,920	2,381	901	522	151	133	253	417
6	Knicks	50-32	.610	82	60.0	29.3	10.6	6.4	1.9	1.0	10.6	21.6	49.2	3.5	8.9	39.3	4.6	5.7	80.0	60.8	2.9	7.8	3.5	4,920	2,406	870	524	154	81	283	411
7	Pistons	14-68	.171	82	60.0	28.5	10.5	6.5	1.6	1.2	10.5	22.0	47.6	2.9	7.8	37.1	4.7	6.0	77.7	57.8	2.6	7.9	3.6	4,920	2,337	862	536	128	95	298	497
8	Kings	46-36	.561	82	60.0	28.4	10.6	7.0	1.9	0.9	10.5	22.5	46.6	3.5	9.8	36.2	3.9	5.3	73.2	57.1	2.5	8.1	3.5	4,920	2,325	872	573	157	70	288	460
9	Hawks	36-46	.439	82	60.0	29.2	10.5	6.6	2.0	1.2	10.6	22.8	46.7	3.5	9.2	38.1	4.4	5.6	77.8	57.8	3.0	7.4	3.5	4,920	2,394	857	545	162	97	284	453
10	Wizards	15-67	.183	82	60.0	28.4	9.8	7.0	1.8	1.3	10.8	23.0	47.0	3.0	8.4	35.2	3.7	5.0	74.3	56.2	2.4	7.4	3.5	4,920	2,325	805	572	151	105	285	489
11	Bulls	39-43	.476	82	60.0	28.6	11.1	6.4	1.9	1.4	10.8	23.1	46.8	2.7	7.7	35.5	4.2	5.2	81.5	56.3	3.0	8.1	2.7	4,920	2,343	909	524	158	117	220	431
12	Spurs	22-60	.268	82	60.0	27.4	10.9	7.1	1.8	1.4	10.4	22.7	45.7	3.0	9.0	33.2	3.7	4.5	81.1	55.5	2.8	8.1	3.8	4,920	2,249	891	586	151	117	314	410
13	Pacers	47-35	.573	82	60.0	31.8	11.0	7.9	1.8	1.9	12.2	24.1	50.7	3.4	9.0	38.2	3.9	4.9	79.7	60.5	2.9	8.1	3.0	4,920	2,609	904	647	147	156	245	516
14	Nets	32-50	.390	82	60.0	27.9	10.9	6.5	1.6	1.4	10.3	22.0	46.6	3.3	8.8	37.0	4.1	5.3	76.4	57.2	2.8	8.1	3.3	4,920	2,286	894	536	130	118	274	417
15	Rockets	41-41	.500	82	60.0	29.6	11.2	6.2	1.9	1.2	10.4	22.1	47.0	3.6	9.4	38.2	5.3	6.8	77.2	59.0	2.7	8.5	3.3	4,920	2,429	918	505	154	95	269	533
16	Thunder	57-25	.695	82	60.0	30.6	10.3	6.8	2.3	1.8	11.4	22.4	50.8	3.5	8.5	40.8	4.4	5.3	82.4	61.8	2.1	8.2	2.9	4,920	2,511	844	555	187	146	241	432
17	Clippers	51-31	.622	82	60.0	29.4	11.0	6.7	2.0	1.3	10.8	22.2	48.5	3.2	8.4	38.2	4.7	5.5	85.7	59.8	2.7	8.3	3.5	4,920	2,409	906	549	161	109	283	478
18	Cavaliers	48-34	.585	82	60.0	27.8	10.5	7.1	2.0	1.1	10.3	21.5	48.0	3.2	9.0	36.1	4.0	5.3	76.0	58.5	2.4	8.1	3.4	4,920	2,282	862	584	160	91	278	411
19	Trail Blazers	21-61	.256	82	60.0	27.1	10.2	5.9	1.7	1.1	9.8	22.0	44.5	3.2	8.5	37.5	4.3	5.5	78.6	55.5	2.8	7.3	3.6	4,920	2,219	833	483	142	92	293	457
20	Jazz	31-51	.378	82	60.0	29.7	11.0	6.9	1.6	1.3	10.7	22.4	47.6	3.2	8.7	37.2	5.1	6.2	82.5	59.0	3.2	7.9	4.0	4,920	2,433	906	568	133	110	330	490
21	Mavericks	50-32	.610	82	60.0	29.3	10.9	6.2	1.8	1.2	10.7	22.7	47.1	3.6	10.2	35.6	4.3	5.7	75.0	58.1	2.5	8.4	3.0	4,920	2,402	893	508	145	100	250	414
22	Pelicans	49-33	.598	82	60.0	28.5	10.9	6.5	2.0	1.1	10.5	22.4	47.0	2.8	8.0	34.9	4.6	6.0	77.2	56.8	3.0	7.8	3.0	4,920	2,333	890	530	162	91	246	483
23	Heat	46-36	.561	82	60.0	27.7	10.6	6.5	2.0	0.8	9.8	20.9	47.1	3.2	8.1	39.8	4.8	5.8	82.7	59.1	2.5	8.2	3.3	4,920	2,269	873	535	160	64	272	392
24	Timberwolves	56-26	.683	82	60.0	28.3	11.4	6.5	2.0	1.6	10.3	21.4	48.1	3.0	7.9	38.7	4.6	5.9	79.4	59.0	2.4	8.9	3.3	4,920	2,319	932	529	164	132	269	440
25	Magic	47-35	.573	82	60.0	28.1	10.0	6.2	2.0	1.3	10.2	21.1	48.4	3.0	7.8	38.0	4.7	6.1	76.8	59.0	2.4	7.6	3.7	4,920	2,304	820	505	166	105	301	450