The Dallas Mavericks have the most games by a team with 20+ field-goal attempts, with 3,461 games.

Interpreted as:

Most regular-season games under 20% or more WIN% on fg attempts

	TEAM	GP	W%	FGA	MPG	PPG	RPG	APG	SPG	BPG	FGM	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TPG	MIN	PTS	REB	AST	STL	BLK	TOV	PF
1	Mavericks	3,461	.518	294,406	241.7	104.2	42.7	22.6			39.2	46.1	6.8	19.2	35.7	18.9	24.5	77.4	54.4			13.5	836,490	360,629	147,752	78,114			46,646	73,334
2	Trail Blazers	3,460	.544	293,977	241.8	104.5	43.5	23.0	7.9	4.9	39.3	46.3	6.3	17.7	35.6	19.6	25.8	75.9	54.3	12.8	30.6	14.7	836,625	361,697	150,387	79,536	27,178	17,039	50,725	75,638
3	Bucks	3,459	.507	291,631	241.7	103.7	42.2	23.5	8.2	4.7	39.2	46.5	6.3	17.5	35.9	18.9	25.0	75.9	54.4			14.5	835,910	358,757	146,040	81,256	28,276	16,352	50,070	77,176
4	76ers	3,459	.483	288,093	241.8	102.1	42.7	22.5		5.4	38.3	45.9	5.4	15.7	34.5	20.2	26.6	75.8	53.7				836,510	353,175	147,797	77,905		18,525		73,034
5	Nuggets	3,459	.505	302,292	241.5	107.0	43.9	24.5			40.5	46.3	5.9			20.1	26.4	76.1	54.0			14.8	835,510	370,077	151,806	84,883			51,198	78,337
6	Suns	3,459	.544	295,931	241.5	107.1	42.9	25.0	8.0	5.0	40.6	47.5	6.4	17.8	36.1	19.3	25.2	76.8	55.4	11.7	31.2	15.0	835,410	370,384	148,334	86,375	27,769	17,259	51,833	75,848
7	Kings	3,458	.433	295,870	241.6	104.8	42.6	23.7	7.9	4.6	39.6	46.3	6.0			19.4	25.7	75.7	54.1				835,570	362,274	147,386	81,915	27,399	15,888		76,709
8	Wizards	3,458	.412	294,214	241.7	102.2	42.2	22.9			39.1	45.9	5.4			18.7	24.9	75.1	53.2				835,895	353,254	145,881	79,075				75,763
9	Pacers	3,458	.509	289,294	241.7	103.3	42.8	23.6			38.9	46.5	6.1	17.0	35.8	19.4	25.1	77.2	54.5				835,670	357,329	147,958	81,676				78,485
10	Nets	3,458	.432	291,946	241.7	101.4	43.2	22.7			38.1	45.1	6.0			19.2	25.4	75.4	53.0				835,645	350,673	149,217	78,626				77,164
11	Rockets	3,458	.541	291,786	241.7	104.2	43.6	23.0			38.9	46.0	7.4	21.2	35.0	19.1	25.4	75.1	54.5				835,645	360,326	150,783	79,523				73,912
12	Thunder	3,458	.560	293,637	241.7	105.4	43.0	23.1			39.6	46.7	6.3			19.8	25.8	76.5	54.7	12.5	30.5	14.8	835,870	364,437	148,745	79,887			51,033	77,205
13	Clippers	3,458	.435	290,668	241.5	102.8	42.5	22.9			38.9	46.3	5.7			19.2	25.8	74.4	53.8				834,945	355,397	146,917	79,036				76,318
14	Jazz	3,458	.566	283,113	241.4	103.7	42.9	24.7		5.6	38.7	47.3	5.5	15.4	35.5	20.8	27.4	76.1	55.2				834,895	358,606	148,198	85,567		19,421		78,543
15	Celtics	3,457	.574	291,922	241.8	104.7	42.8	24.0			39.6	46.9	6.6	18.4	35.7	18.9	24.5	77.4	55.0				835,780	361,915	148,119	83,136				75,874
16	Lakers	3,457	.597	294,140	241.7	106.4	43.7	24.5			40.3	47.4	6.2			19.7	26.4	74.6	55.0				835,655	367,976	150,985	84,865				72,849
17	Spurs	3,457	.594	289,710	241.6	104.2	43.5	24.2	7.8	5.6	39.7	47.4	5.8	16.1	36.3	18.9	25.2	74.9	54.9			14.5	835,155	360,090	150,462	83,754	26,963	19,502	50,031	71,378
18	Hawks	3,453	.498	290,221	241.7	102.7	42.8	22.8			38.6	46.0	6.1			19.3	25.2	76.3	54.0				834,570	354,547	147,940	78,862				73,800
19	Knicks	3,452	.479	287,497	242.0	101.1	42.4	22.3			38.2	45.8	6.3			18.5	24.4	75.7	53.8				835,230	349,104	146,391	77,084				78,909
20	Pistons	3,452	.500	290,106	241.7	101.4	43.0	22.5			38.4	45.7	5.7			18.9	25.2	74.9	53.3				834,405	350,190	148,468	77,795				75,307
21	Warriors	3,451	.477	301,270	241.6	107.3	43.6	24.4	8.6	5.1	40.5	46.4	6.9	19.1	36.3	19.4	25.7	75.6	54.4			15.4	833,690	370,223	150,600	84,040	29,631	17,670	53,242	78,270
22	Bulls	3,451	.516	291,448	241.9	101.8	43.4	23.9			39.0	46.1	5.6	15.7	35.5	18.3	24.2	75.8	53.5				834,915	351,397	149,815	82,322				74,586
23	Cavaliers	3,451	.496	285,716	241.7	101.1	42.4	23.2			38.1	46.1	6.1			18.8	25.0	75.1	53.9				834,065	349,055	146,344	80,117				73,139
24	Heat	2,967	.525	240,873	241.9	99.8	42.0	22.0	7.7	4.8	37.3	46.0	7.1	19.8	35.8	18.0	24.2	74.6	54.3	11.0	30.9	14.3	717,705	296,064	124,526	65,208	22,706	14,293	42,359	63,984
25	Magic	2,885	.470	240,267	241.5	101.3	42.8	22.1	7.6	4.8	37.9	45.5	7.2	20.5	35.2	18.3	24.9	73.6	53.8	11.6	31.2	14.5	696,700	292,354	123,443	63,616	21,790	13,901	41,689	60,580