The Miami Heat had their best net rating without LeBron James in a season in 2004-05, with a 7.1 rating.

Interpreted as:

heat record net rating in a regular season without lebron

	TEAM	NETRTG	SEASON	ORTG	DRTG	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	Heat	7.1	2004-05	111.0	103.9	82	243.7	101.5	43.0	21.8	6.4	5.8	37.8	77.7	48.6	5.8	15.4	37.7	20.2	30.1	67.2	55.9	10.8	32.2	13.3	19,980	8,327	3,526	1,790	528	474	1,093	1,814
2	Heat	4.6	2021-22	114.7	110.0	82	242.1	110.0	43.7	25.5	7.4	3.2	39.6	84.8	46.7	13.6	35.8	37.9	17.3	21.4	80.8	58.4	9.8	33.9	13.8	19,855	9,022	3,585	2,090	606	265	1,129	1,679
3	Heat	4.2	2005-06	109.5	105.3	82	240.9	99.9	43.1	20.6	6.4	5.4	37.1	77.5	47.8	6.1	17.6	34.5	19.7	28.2	70.0	55.6	10.5	32.6	13.9	19,755	8,191	3,533	1,692	522	442	1,139	1,871
4	Heat	3.5	2012-13	110.4	106.9	6	240.0	95.2	38.7	23.7	6.0	7.5	33.7	69.8	48.2	12.5	29.8	41.9	15.3	21.3	71.9	60.1	8.2	30.5	16.5	1,440	571	232	142	36	45	99	106
5	Heat	3.0	2019-20	113.3	110.3	73	243.1	112.0	44.4	25.9	7.5	4.5	39.5	84.4	46.8	13.4	35.4	37.9	19.7	25.2	78.3	58.7	8.5	35.9	13.9	17,745	8,179	3,239	1,892	547	332	1,018	1,501
6	Heat	2.5	2009-10	107.6	105.0	82	242.4	96.5	41.8	18.9	7.4	5.6	36.4	79.5	45.8	6.0	17.4	34.6	17.7	23.5	75.2	53.7	10.7	31.1	12.3	19,880	7,914	3,428	1,548	605	457	1,011	1,710
7	Heat	1.8	2023-24	115.0	113.1	82	240.9	110.1	42.3	25.8	7.5	3.4	39.8	85.6	46.5	12.5	33.7	37.0	18.0	22.0	81.8	57.8	9.3	33.0	11.8	19,755	9,032	3,468	2,116	617	280	969	1,415
8	Heat	1.8	2015-16	107.0	105.2	82	241.8	100.0	44.1	20.8	6.7	6.5	38.4	81.7	47.0	6.1	18.0	33.6	17.1	23.0	74.4	54.5	9.8	34.3	13.2	19,830	8,204	3,618	1,709	553	531	1,085	1,502
9	Heat	1.1	2016-17	108.6	107.5	82	241.2	103.2	43.6	21.2	7.2	5.7	39.0	85.8	45.5	9.9	27.0	36.5	15.2	21.6	70.6	54.1	10.6	33.0	12.6	19,780	8,460	3,577	1,742	588	469	1,033	1,680
10	Heat	0.6	2003-04	103.0	102.4	82	240.9	90.3	41.5	19.1	7.2	3.8	33.3	78.3	42.5	5.9	16.5	35.7	17.8	23.4	76.2	51.0	11.5	30.0	13.1	19,755	7,402	3,399	1,565	590	313	1,076	1,812
11	Heat	0.6	2024-25	114.7	114.1	82	243.0	110.6	43.4	26.4	8.1	3.8	40.5	87.0	46.5	13.7	37.3	36.7	16.0	20.2	79.1	57.6	9.7	33.7	12.6	19,930	9,069	3,558	2,166	668	314	1,036	1,275
12	Heat	0.5	2017-18	107.6	107.1	82	243.0	103.4	43.5	22.7	7.6	5.3	38.8	85.3	45.5	11.0	30.6	36.0	14.7	19.5	75.5	55.1	9.3	34.2	13.6	19,930	8,480	3,564	1,862	620	437	1,118	1,648
13	Heat	0.3	2008-09	108.6	108.3	82	243.4	98.3	39.5	20.4	7.9	5.5	37.0	81.0	45.7	7.1	19.9	35.7	17.2	22.8	75.4	54.0	10.1	29.4	11.9	19,955	8,061	3,239	1,671	651	451	979	1,696
14	Heat	0.0	2020-21	112.1	112.1	72	241.4	108.1	41.5	26.3	7.9	4.0	39.2	83.7	46.8	12.9	36.2	35.8	16.7	21.1	79.0	58.1	8.0	33.5	13.3	17,380	7,781	2,988	1,895	569	286	956	1,363
15	Heat	-0.2	2018-19	108.1	108.3	82	240.6	105.7	46.3	24.3	7.6	5.5	39.6	88.0	45.0	11.3	32.4	34.9	15.1	21.7	69.5	54.2	11.2	35.1	14.1	19,730	8,668	3,800	1,991	627	448	1,155	1,712
16	Heat	-0.3	2022-23	113.9	114.2	82	241.5	109.5	40.6	23.8	8.0	3.0	39.2	85.3	46.0	12.0	34.8	34.4	19.1	23.0	83.1	57.4	9.7	30.9	12.8	19,805	8,977	3,329	1,955	655	243	1,047	1,516
17	Heat	-1.0	2006-07	105.2	106.2	82	242.1	94.6	40.8	20.5	6.9	5.4	35.6	76.7	46.4	6.4	18.8	34.3	17.0	24.6	69.0	54.1	10.0	30.8	13.9	19,855	7,759	3,343	1,681	566	442	1,142	1,749
18	Heat	-2.9	2014-15	104.9	107.7	82	240.6	94.7	39.1	19.8	7.8	4.5	35.2	77.2	45.6	6.8	20.2	33.5	17.5	23.7	74.1	54.0	9.1	30.0	13.9	19,730	7,764	3,208	1,626	642	372	1,139	1,636
19	Heat	-4.8	2010-11	109.4	114.2	3	240.0	98.3	37.0	20.3	3.7	5.0	37.3	82.3	45.3	12.0	25.7	46.8	11.7	17.3	67.3	54.7	10.3	26.7	14.0	720	295	111	61	11	15	42	53
20	Heat	-5.4	2013-14	106.8	112.2	5	240.0	95.4	35.8	22.8	9.8	3.6	37.6	82.0	45.9	7.6	22.2	34.2	12.6	15.6	80.8	53.7	9.4	26.4	12.4	1,200	477	179	114	49	18	62	78
21	Heat	-9.6	2007-08	101.2	110.8	82	241.8	91.4	37.6	20.0	7.2	4.3	34.2	77.3	44.3	6.0	16.7	35.8	16.9	23.2	72.7	52.2	9.1	28.6	14.0	19,830	7,491	3,085	1,644	589	355	1,151	1,670
22	Heat	-10.6	2011-12	86.8	97.4	4	258.8	84.0	44.3	18.0	6.0	5.5	32.0	79.8	40.1	6.8	22.0	30.7	13.3	17.5	75.7	48.0	10.8	33.5	22.0	1,035	336	177	72	24	22	88	88