Since 2014-15, the Boston Celtics have the best record against the spread by a team, with a spread record of 445-383-21.

what team has the best record against the spread since 2015

TEAM	ATS	ATS COV %	ATS AVG	O/U REC	O/U AVG	GP	MPG	PPG	RPG	APG	SPG	BPG	TPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	MIN	PTS	REB	AST	STL	BLK	TOV	PF
Boston Celtics	445-383-21	52.3	+0.9	428-411-12	+0.7	851	241.8	111.0	44.6	24.6	7.5	5.2	12.8	40.4	87.7	46.1	12.9	35.3	36.6	17.2	21.6	79.8	205,790	94,456	37,928	20,939	6,375	4,429	10,863	16,819
Oklahoma City Thunder	401-357-12	52	+0.3	371-387-13	-0.1	771	241.7	110.3	45.4	22.8	8.0	5.1	13.6	40.7	88.8	45.9	10.9	31.4	34.8	18.0	23.6	76.3	186,315	85,078	34,972	17,547	6,204	3,950	10,516	15,421
Miami Heat	417-379-17	51.3	+0.3	394-411-8	-0.4	813	241.8	106.6	43.1	23.8	7.4	4.5	13.1	39.1	84.9	46.0	11.3	31.5	36.0	17.0	22.0	77.3	196,545	86,630	35,059	19,343	6,042	3,671	10,641	15,959
Philadelphia 76ers	404-365-15	51.3	+0.5	399-383-5	+0.4	787	241.6	109.6	44.0	24.6	8.0	5.4	13.8	39.9	86.1	46.3	11.1	30.8	36.2	18.8	24.1	78.0	190,130	86,288	34,644	19,333	6,327	4,268	10,871	16,508
Dallas Mavericks	395-364-12	51	+0.5	362-406-6	-0.1	774	241.6	108.7	42.3	23.0	6.7	4.1	11.9	39.4	85.9	45.8	13.0	36.1	35.9	17.0	22.2	76.8	186,985	84,156	32,771	17,797	5,170	3,187	9,231	15,164
New York Knicks	381-354-5	51.4	+0.7	343-387-11	-0.2	741	241.7	106.6	45.3	22.0	6.8	4.9	12.8	39.4	87.5	45.0	10.5	29.7	35.5	17.2	22.4	76.7	179,115	78,960	33,537	16,286	5,057	3,650	9,517	14,946
Sacramento Kings	364-344-18	50.1	-0.3	351-366-10	+0.2	727	241.5	110.4	42.9	24.7	7.8	4.2	13.5	41.2	88.1	46.7	11.3	30.9	36.5	16.8	22.3	75.4	175,580	80,266	31,154	17,960	5,641	3,071	9,822	14,720
Indiana Pacers	387-367-7	50.6	+0.5	377-380-7	+1.3	765	241.4	110.4	42.5	25.3	8.1	5.2	13.2	41.6	88.0	47.3	10.7	29.5	36.5	16.5	21.1	77.9	184,700	84,455	32,535	19,348	6,173	4,004	10,107	15,440
L.A. Clippers	392-378-10	50.1	+0	378-393-11	+0.3	782	241.0	111.4	43.8	23.5	7.4	4.6	12.9	40.5	85.8	47.2	11.5	30.6	37.7	18.8	24.3	77.4	188,480	87,079	34,263	18,340	5,809	3,622	10,121	15,929
San Antonio Spurs	376-367-13	49.7	+0.1	384-359-14	+0.6	757	241.6	109.2	44.2	25.3	7.3	5.3	12.7	41.3	88.3	46.8	9.9	27.4	36.2	16.7	21.3	78.6	182,880	82,682	33,446	19,161	5,560	4,015	9,584	13,785
Utah Jazz	381-373-14	49.5	+0.3	383-377-9	+1	769	241.3	109.4	45.0	23.0	7.1	5.1	14.0	39.6	85.1	46.5	12.4	33.9	36.5	17.8	23.1	77.1	185,535	84,129	34,618	17,716	5,423	3,895	10,778	15,157
Denver Nuggets	395-388-16	49.4	+0	411-382-6	+0.9	799	241.7	111.3	44.6	26.5	7.4	4.5	13.3	41.6	87.5	47.5	11.2	30.9	36.4	16.8	21.7	77.4	193,085	88,937	35,616	21,137	5,908	3,611	10,601	15,633
Toronto Raptors	399-389-9	49.9	+0.3	404-381-15	+0.4	800	241.7	109.6	43.5	23.1	8.3	5.1	12.5	40.1	87.5	45.8	11.4	31.9	35.7	18.1	23.0	78.6	193,325	87,683	34,808	18,478	6,614	4,102	9,966	16,480
Orlando Magic	365-358-12	49.6	-0.1	355-374-7	-0.4	736	241.2	105.6	43.7	23.5	7.4	4.9	13.3	39.2	87.3	45.0	10.5	30.4	34.4	16.6	21.6	76.9	177,540	77,693	32,145	17,312	5,463	3,616	9,802	14,195
Memphis Grizzlies	375-365-11	49.7	+0.2	367-379-9	+0.1	755	241.5	107.2	44.1	24.1	8.4	5.3	13.2	39.7	87.9	45.2	10.4	29.7	34.9	17.3	22.6	76.6	182,350	80,917	33,325	18,166	6,333	3,975	10,000	15,806
Brooklyn Nets	365-367-15	48.8	+0	365-378-5	+0.2	748	241.6	109.8	44.1	24.2	6.9	4.9	13.8	40.1	87.3	46.0	11.9	33.1	36.0	17.6	22.7	77.5	180,745	82,146	32,972	18,117	5,147	3,668	10,345	15,084
New Orleans Pelicans	361-365-13	48.7	+0.5	372-363-7	+0.3	742	241.7	111.2	45.0	25.4	7.9	4.8	13.7	41.5	88.4	46.9	10.7	29.9	35.7	17.6	23.1	76.4	179,330	82,528	33,362	18,860	5,837	3,545	10,191	14,616
Golden State Warriors	402-411-20	48.3	-0.3	397-426-10	-0.2	833	241.3	114.2	44.8	28.4	8.1	5.5	14.4	42.1	88.0	47.8	13.3	35.2	37.9	16.7	21.2	78.8	201,020	95,169	37,313	23,667	6,706	4,572	12,002	17,213
Phoenix Suns	374-383-12	48.6	-0.5	386-373-10	+0.3	769	241.2	110.2	43.6	24.5	7.7	4.7	14.0	40.9	87.7	46.7	10.6	29.7	35.8	17.8	22.5	79.0	185,485	84,766	33,548	18,822	5,909	3,606	10,778	16,518
Chicago Bulls	353-363-9	48.6	-0.5	348-373-5	+0.2	726	242.0	107.2	44.0	23.7	7.6	4.5	13.1	40.4	87.9	45.9	10.2	28.6	35.7	16.3	20.6	78.9	175,715	77,840	31,924	17,222	5,482	3,247	9,530	13,934
Detroit Pistons	344-358-18	47.8	-0.3	346-362-12	+0.2	720	241.7	105.7	43.8	22.8	7.2	4.2	13.4	39.1	87.3	44.8	10.7	30.8	34.9	16.8	22.5	74.5	174,000	76,134	31,524	16,446	5,150	3,046	9,648	14,592
Portland Trail Blazers	368-383-13	48	-0.5	394-369-4	+1.1	767	241.6	109.8	44.3	21.8	7.0	4.9	13.2	40.1	88.2	45.4	11.9	32.7	36.5	17.8	22.5	79.0	185,305	84,250	33,978	16,716	5,373	3,752	10,126	15,853
Milwaukee Bucks	385-401-14	47.9	-0.6	409-384-10	+0.8	803	241.5	112.4	45.7	24.7	7.6	5.2	13.4	41.6	87.6	47.4	11.9	32.8	36.3	17.4	22.9	75.9	193,895	90,263	36,706	19,835	6,076	4,148	10,754	15,620
Charlotte Hornets	339-365-15	47.1	-0.3	350-360-10	+0.5	720	241.7	108.0	43.6	24.1	7.3	4.8	12.6	39.4	87.6	45.0	11.6	32.6	35.6	17.5	22.7	77.2	174,000	77,750	31,374	17,366	5,264	3,449	9,077	13,249
Washington Wizards	349-379-13	46.9	-0.4	404-334-6	+1.6	744	241.6	111.0	42.8	25.3	7.7	4.6	13.5	41.4	88.2	47.0	10.5	29.6	35.5	17.6	22.8	77.2	179,735	82,568	31,833	18,838	5,723	3,401	10,071	15,406