The Boston Celtics had a net rating of -5.2 in 1946-47.

	TEAM	NETRTG	SEASON	ORTG	DRTG	GP	MPG	PPG	RPG	APG	FGM	FGA	FG%	FTM	FTA	FT%	TS%	MIN	PTS	REB	AST	PF
1	Celtics	-5.2	1946-47	64.3	69.5	60	241.3	60.1		7.8	23.3	85.6	27.2	13.5	22.9	59.0	31.4	14,475	3,605		470	1,202
2	Celtics	-3.9	1947-48	69.0	73.0	48	242.6	68.8		7.6	25.9	90.1	28.7	17.1	26.0	65.9	33.9	11,645	3,303		364	1,065
3	Celtics	-2.8	1948-49	73.6	76.4	60	241.3	76.6		18.9	28.4	91.4	31.1	19.7	30.9	63.6	36.5	14,475	4,593		1,135	1,382
4	Celtics	-2.5	1949-50	80.8	83.4	68	241.5	79.7		21.7	28.6	84.6	33.8	22.5	31.8	70.7	40.4	16,420	5,420		1,473	1,644
5	Celtics	-0.3	1950-51	87.3	87.6	69	244.7	85.2	50.7	22.9	29.9	81.3	36.8	25.4	35.0	72.5	44.1	16,885	5,881	3,499	1,579	1,881
6	Celtics	4.0	1951-52	90.4	86.4	66	241.9	91.3	56.8	24.3	32.3	83.5	38.7	26.7	36.5	73.4	45.9	15,965	6,027	3,750	1,606	1,734
7	Celtics	2.5	1952-53	91.7	89.3	71	242.5	88.1	54.4	23.5	30.7	78.2	39.2	26.8	36.9	72.8	46.7	17,215	6,258	3,865	1,666	1,911
8	Celtics	2.5	1953-54	92.5	90.0	72	244.9	87.7	53.7	24.6	31.0	77.5	40.0	25.7	35.4	72.6	47.1	17,630	6,315	3,867	1,773	1,969
9	Celtics	-0.1	1954-55	93.0	93.0	72	241.0	101.5	59.6	26.5	36.2	90.7	39.9	29.1	37.6	77.6	47.3	17,355	7,305	4,293	1,905	1,859
10	Celtics	0.6	1955-56	92.2	91.7	72	241.0	106.0	63.7	25.5	38.1	96.0	39.7	29.8	38.7	76.9	46.9	17,355	7,632	4,583	1,834	1,874
11	Celtics	4.5	1956-57	88.5	84.0	72	241.4	105.5	68.9	20.3	39.0	101.8	38.3	27.5	36.7	75.0	44.8	17,380	7,599	4,963	1,464	1,851
12	Celtics	4.4	1957-58	87.9	83.5	72	240.3	109.9	75.0	20.9	41.8	107.8	38.7	26.4	35.9	73.7	44.5	17,305	7,916	5,402	1,508	1,723
13	Celtics	5.0	1958-59	89.4	84.4	72	242.8	116.4	77.8	21.8	44.6	112.7	39.5	27.3	35.6	76.6	45.3	17,480	8,379	5,601	1,568	1,769
14	Celtics	6.1	1959-60	90.9	84.8	75	241.0	124.5	80.2	24.7	49.9	119.6	41.7	24.7	33.6	73.4	46.3	18,075	9,337	6,014	1,849	1,856
15	Celtics	4.2	1960-61	88.6	84.4	79	241.3	119.7	77.6	23.7	46.8	117.7	39.8	26.1	35.6	73.3	44.9	19,060	9,460	6,131	1,872	2,032
16	Celtics	7.0	1961-62	92.1	85.0	80	240.9	121.1	76.0	25.6	48.2	113.9	42.3	24.7	33.9	72.8	47.0	19,275	9,687	6,080	2,049	1,909
17	Celtics	5.6	1962-63	92.9	87.3	80	240.9	118.8	72.7	24.5	46.8	109.7	42.7	25.2	34.7	72.5	47.5	19,275	9,504	5,818	1,960	2,090
18	Celtics	6.3	1963-64	90.0	83.7	80	240.9	113.0	71.7	22.0	45.2	109.6	41.3	22.6	31.1	72.5	45.8	19,275	9,042	5,736	1,760	2,125
19	Celtics	6.8	1964-65	90.9	84.1	80	240.9	112.8	71.9	22.2	44.6	107.6	41.4	23.6	32.3	73.1	46.3	19,275	9,024	5,748	1,772	2,065
20	Celtics	4.0	1965-66	92.2	88.2	80	240.3	112.7	69.9	22.4	43.6	104.6	41.7	25.5	34.5	73.9	47.0	19,225	9,014	5,591	1,795	2,012
21	Celtics	6.6	1966-67	97.5	90.9	81	242.2	119.3	70.4	24.2	46.0	102.8	44.7	27.4	36.6	74.8	50.2	19,615	9,664	5,703	1,962	2,138
22	Celtics	3.4	1967-68	95.7	92.3	82	240.3	116.1	69.1	21.9	45.0	102.1	44.0	26.2	36.4	72.1	49.2	19,705	9,523	5,666	1,798	2,147
23	Celtics	4.7	1968-69	93.7	89.0	82	241.8	111.0	59.0	23.8	43.7	101.4	43.1	23.6	32.4	72.9	48.0	19,830	9,102	4,840	1,953	2,073
24	Celtics	-1.6	1969-70	97.3	98.8	82	241.2	114.9	52.9	22.9	44.5	100.4	44.3	26.0	33.1	78.6	50.0	19,780	9,422	4,336	1,875	2,320
25	Celtics	1.7	1970-71	95.7	94.0	82	241.2	117.2	58.9	25.0	46.4	105.1	44.2	24.4	32.3	75.5	49.1	19,780	9,608	4,833	2,052	2,138