I don't have anything for this season, but Doug McDermott had the most three-pointers per assist in 2024-25, with 6.29.

Interpreted as:

highest threes/assist by a player this season

	NAME	3PM/AST	3PM	AST	SEASON	TM	GP	MPG	PPG	RPG	APG	SPG	BPG	FGM	FGA	FG%	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TPG	MIN	PTS	REB	STL	BLK	TOV	PF	+/-
1	Doug McDermott D. McDermott	6.29	44	7	2024-25	SAC	42	8.1	3.5	0.5	0.2	0.1	0.0	1.2	2.8	42.7	2.4	43.6	0.1	0.1	60.0	61.7	0.1	0.5	0.1	342	147	22	4	2	6	30	+27
2	Cole Swider C. Swider	5	15	3	2024-25	TOT	10	16.9	5.9	2.7	0.3	0.4	0.2	2.2	6.3	34.9	4.7	31.9	0.0	0.1	0.0	46.5	0.5	2.2	0.4	169	59	27	4	2	4	12	+54
3	Daeqwon Plowden D. Plowden	4.5	9	2	2024-25	ATL	6	12.0	7.2	1.8	0.3	0.0	0.0	2.7	4.2	64.0	2.8	52.9	0.3	0.3	100.0	83.1	0.7	1.2	0.7	72	43	11	0	0	4	10	+29
4	Patrick Baldwin Jr. P. Baldwin Jr.	4.33	13	3	2024-25	TOT	24	4.5	2.2	1.0	0.1	0.1	0.1	0.8	1.5	54.3	1.0	56.5	0.1	0.2	50.0	72.1	0.2	0.8	0.2	107	53	25	3	2	5	7	+29
5	Jack McVeigh J. McVeigh	4	4	1	2024-25	HOU	9	4.8	1.6	0.6	0.1	0.0	0.2	0.6	1.9	29.4	1.4	30.8	0.0	0.0		41.2	0.2	0.3	0.2	43	14	5	0	2	2	3	-10
6	Alex Reese A. Reese	3.75	15	4	2024-25	TOT	15	14.4	5.1	3.1	0.3	0.7	0.7	1.7	3.6	48.1	2.7	36.6	0.6	0.8	75.0	64.1	0.6	2.5	0.4	216	76	47	10	10	6	21	+21
7	Tyler Smith T. Smith	3.25	13	4	2024-25	MIL	23	5.3	2.9	1.1	0.2	0.1	0.2	1.0	2.2	48.0	1.3	43.3	0.3	0.3	75.0	62.6	0.3	0.8	0.3	122	67	25	3	4	8	11	+8
8	Dariq Whitehead D. Whitehead	2.75	33	12	2024-25	BKN	20	12.3	5.7	1.5	0.6	0.3	0.1	2.0	4.8	40.6	3.7	44.6	0.2	0.3	60.0	58.0	0.2	1.3	0.8	246	114	29	6	1	15	22	-64
9	Sam Hauser S. Hauser	2.59	166	64	2024-25	BOS	71	21.7	8.5	3.2	0.9	0.6	0.2	3.0	6.7	45.1	5.6	41.6	0.2	0.2	100.0	63.2	0.6	2.5	0.3	1,541	605	224	41	13	23	87	+325
10	Landry Shamet L. Shamet	2.3	62	27	2024-25	NYK	50	15.2	5.7	1.2	0.5	0.5	0.0	2.1	4.6	46.1	3.1	39.7	0.2	0.4	66.7	60.1	0.2	1.0	0.4	762	286	61	23	2	22	52	+88
11	Malik Beasley M. Beasley	2.29	319	139	2024-25	DET	82	27.8	16.3	2.6	1.7	0.9	0.1	5.6	13.1	43.0	9.3	41.6	1.2	1.7	67.9	59.0	0.6	2.0	1.0	2,283	1,336	214	73	5	83	125	+175
12	Noah Clowney N. Clowney	2.17	87	40	2024-25	BKN	46	22.7	9.1	3.9	0.9	0.5	0.5	2.9	8.1	35.8	5.7	33.3	1.5	1.7	83.8	51.6	0.9	3.0	1.0	1,042	420	181	24	21	46	105	-261
13	Jay Huff J. Huff	2.13	81	38	2024-25	MEM	64	11.7	6.9	2.0	0.6	0.3	0.9	2.5	4.8	51.5	3.1	40.5	0.7	0.9	78.6	66.6	0.5	1.5	0.5	748	439	129	16	56	34	78	+25
14	Chris Boucher C. Boucher	2.12	70	33	2024-25	TOR	50	17.2	10.0	4.5	0.7	0.5	0.5	3.6	7.4	49.2	3.9	36.3	1.4	1.7	78.2	61.5	1.4	3.1	0.6	862	502	224	24	25	29	68	+5
15	Gary Trent Jr. G. Trent Jr.	2.07	180	87	2024-25	MIL	74	25.6	11.1	2.3	1.2	1.0	0.1	3.8	8.9	43.1	5.9	41.6	1.1	1.2	84.8	59.1	0.3	2.0	0.6	1,893	824	168	72	4	42	124	+70
16	Matt Ryan M. Ryan	2	6	3	2024-25	NYK	19	3.6	1.5	0.4	0.2	0.1	0.0	0.5	1.6	32.3	1.0	31.6	0.1	0.1	100.0	43.9	0.0	0.4	0.2	68	28	8	2	0	3	1	-40
17	Alex Ducas A. Ducas	2	10	5	2024-25	OKC	21	6.0	1.7	1.2	0.2	0.2	0.0	0.6	1.4	40.0	1.0	47.6	0.1	0.1	100.0	58.3	0.4	0.8	0.2	125	36	26	5	0	4	12	-22
18	Jamison Battle J. Battle	1.98	105	53	2024-25	TOR	59	17.7	7.1	2.7	0.9	0.3	0.2	2.5	5.9	42.9	4.4	40.5	0.3	0.3	88.9	59.0	0.6	2.1	0.5	1,042	419	158	17	10	27	92	-183
19	Lauri Markkanen L. Markkanen	1.97	138	70	2024-25	UTA	47	31.4	19.0	5.9	1.5	0.7	0.4	6.3	14.9	42.3	8.5	34.6	3.4	3.9	87.6	57.1	1.5	4.4	1.4	1,476	892	278	33	17	66	79	-186
20	Dalton Knecht D. Knecht	1.94	128	66	2024-25	LAL	78	19.2	9.1	2.8	0.8	0.3	0.1	3.3	7.1	46.1	4.4	37.6	0.8	1.1	76.2	59.4	0.5	2.3	0.5	1,494	706	216	24	8	37	93	-73
21	Caleb Houstan C. Houstan	1.83	64	35	2024-25	ORL	58	13.6	4.1	1.3	0.6	0.4	0.1	1.4	3.3	42.1	2.8	40.0	0.3	0.3	88.2	60.5	0.3	1.0	0.2	788	239	75	22	6	13	62	-66
22	Johnny Juzang J. Juzang	1.74	118	68	2024-25	UTA	64	19.8	8.9	2.9	1.1	0.6	0.1	3.2	7.4	42.9	4.9	37.6	0.7	0.8	84.9	57.3	0.7	2.2	0.6	1,270	571	184	39	8	36	126	-357
23	De'Andre Hunter D. Hunter	1.71	157	92	2024-25	TOT	64	27.2	17.0	4.0	1.4	0.8	0.2	5.6	11.9	47.0	6.1	40.5	3.4	4.0	84.6	62.3	0.7	3.3	1.3	1,740	1,088	258	50	13	82	155	+88
24	Jordan Hawkins J. Hawkins	1.67	110	66	2024-25	NOP	56	23.6	10.8	2.8	1.2	0.5	0.4	3.7	9.9	37.2	5.9	33.1	1.4	1.8	81.6	50.4	0.4	2.4	1.0	1,321	604	158	30	23	58	51	-315
25	Jabari Smith Jr. J. Smith Jr.	1.63	98	60	2024-25	HOU	57	30.1	12.2	7.0	1.1	0.4	0.7	4.4	9.9	43.8	4.9	35.4	1.8	2.2	82.5	56.2	1.8	5.2	1.1	1,716	698	399	25	41	61	123	+250