Gorgui Dieng had his best three-point percentage in a season in his rookie season in 2013-14, at 100.0 percent.

NAME	SEASON	TM	GP	3P%	MPG	PPG	RPG	APG	SPG	BPG	TPG	FGM	FGA	FG%	3PM	3PA	FTM	FTA	FT%	MIN	PTS	REB	AST	STL	BLK	TOV	PF	+/-
Gorgui Dieng	2013-14	MIN	60	100.0	13.6	4.8	5.0	0.7	0.5	0.8	0.9	1.9	3.8	49.8	0.0	0.0	1.0	1.6	63.4	818	286	300	39	30	50	54	108	-40
Gorgui Dieng	2020-21	TOT	38	42.9	14.5	6.8	3.7	1.3	0.7	0.4	0.8	2.2	4.3	52.1	0.8	1.8	1.5	1.8	86.6	552	258	140	48	26	16	32	56	-68
Gorgui Dieng	2021-22	ATL	44	42.6	8.4	3.5	2.8	0.8	0.3	0.3	0.5	1.2	2.5	47.3	0.7	1.5	0.4	0.6	73.1	371	154	121	34	11	13	20	52	-63
Gorgui Dieng	2016-17	MIN	82	37.2	32.4	10.0	7.9	1.9	1.1	1.2	1.3	4.0	8.1	50.2	0.2	0.5	1.7	2.0	81.4	2,653	816	647	158	88	95	107	254	+33
Gorgui Dieng	2019-20	TOT	63	35.5	17.4	7.4	5.6	1.2	0.8	0.9	1.0	2.6	5.8	45.6	0.9	2.4	1.2	1.6	77.2	1,096	464	354	73	51	59	60	124	-103
Gorgui Dieng	2018-19	MIN	76	33.9	13.6	6.4	4.1	0.9	0.6	0.5	0.8	2.5	5.0	50.1	0.3	0.7	1.2	1.4	83.0	1,031	485	311	72	48	41	57	134	-119
Gorgui Dieng	2017-18	MIN	79	31.1	16.9	5.9	4.6	0.9	0.6	0.5	0.7	2.4	4.9	47.9	0.2	0.8	1.0	1.3	77.5	1,333	470	360	71	45	39	59	147	-201
Gorgui Dieng	2015-16	MIN	82	30.0	27.1	10.1	7.1	1.7	1.1	1.2	1.7	3.8	7.1	53.2	0.1	0.2	2.5	3.0	82.7	2,220	827	585	143	94	96	140	219	-7
Gorgui Dieng	2022-23	SAS	31	28.0	11.5	3.9	3.5	1.7	0.1	0.5	1.0	1.5	3.8	38.5	0.7	2.4	0.3	0.4	76.9	358	121	107	53	4	14	32	57	-152
Gorgui Dieng	2014-15	MIN	73	16.7	30.0	9.7	8.3	2.0	1.0	1.7	1.7	3.5	7.0	50.6	0.0	0.1	2.6	3.3	78.3	2,193	710	609	146	71	126	126	188	-384

StatMuse has season-level data for three-point percentage going back to the 1979-80 season.