Chris Paul has the best career three-point percentage by a guard in the NBA Finals when scoring 20.0+ points per game, at 52.2 percent.

highest career three point percentage by an nba guard in the finals minimum 20 points per game

NAME	3P%	PPG	SERIES	GP	MPG	RPG	APG	SPG	BPG	TPG	FGM	FGA	FG%	3PM	3PA	FTM	FTA	FT%	MIN	PTS	REB	AST	STL	BLK	TOV	PF	+/-
Chris Paul	52.2	21.8	NBA Finals	6	37.3	2.7	8.2	0.7	0.2	3.5	9.2	16.7	55.0	2.0	3.8	1.5	2.0	75.0	224	131	16	49	4	1	21	19	-11
Isiah Thomas	46.2	22.6	NBA Finals	16	37.2	4.2	7.9	2.1	0.3	3.8	8.3	17.3	48.0	1.1	2.4	4.8	6.1	78.6	595	361	67	127	34	5	61	55
Anfernee Hardaway	45.8	25.5	NBA Finals	4	43.0	4.8	8.0	1.0	0.8	3.8	8.8	17.5	50.0	2.8	6.0	5.3	5.8	91.3	172	102	19	32	4	3	15	15
Stephen Curry	39.5	27.3	NBA Finals	34	39.0	5.8	6.0	1.6	0.3	3.5	8.8	20.4	43.2	4.5	11.3	5.2	5.6	91.7	1,327	928	196	204	55	11	120	96	+138
Kyrie Irving	39.5	27.7	NBA Finals	13	39.8	4.2	4.2	1.8	0.6	2.7	10.8	23.0	46.8	2.3	5.8	3.8	4.2	92.6	518	360	54	55	24	8	35	39	+6
Jamal Murray	38.7	21.4	NBA Finals	5	42.3	6.2	10.0	1.0	0.0	3.4	8.2	18.2	45.1	2.4	6.2	2.6	2.8	92.9	211	107	31	50	5	0	17	9	+55
Reggie Miller	37.5	24.3	NBA Finals	6	42.0	2.7	3.7	0.8	0.3	1.3	7.2	17.3	41.3	2.5	6.7	7.5	7.7	97.8	252	146	16	22	5	2	8	8	+23
Andrew Toney	37.5	24.4	NBA Finals	10	37.4	2.5	7.0	1.2	0.1	3.7	9.4	19.2	49.0	0.3	0.8	5.3	6.2	85.5	374	244	25	70	12	1	37	34
Michael Jordan	36.8	33.6	NBA Finals	35	43.0	6.0	6.0	1.8	0.7	2.8	12.5	26.0	48.1	1.2	3.3	7.4	9.1	80.6	1,506	1,176	211	209	62	23	99	103	+45
Chauncey Billups	35.2	20.7	NBA Finals	12	39.4	4.3	5.8	1.1	0.1	1.8	6.3	13.6	46.0	1.6	4.5	6.6	7.2	91.9	473	248	51	70	13	1	22	28	+60
Jason Terry	34.8	20.0	NBA Finals	12	36.3	2.1	3.3	1.6	0.0	1.9	7.7	15.8	48.4	2.0	5.8	2.7	3.6	74.4	436	240	25	40	19	0	23	21	+11
Kobe Bryant	31.4	25.3	NBA Finals	37	42.7	5.7	5.1	1.8	0.9	3.3	9.0	21.8	41.2	1.3	4.1	6.0	7.1	84.8	1,581	937	211	187	65	33	123	118	+36
Dwyane Wade	31.1	23.9	NBA Finals	29	38.8	5.7	4.3	1.8	1.0	2.9	8.7	18.2	47.6	0.5	1.6	6.0	8.1	74.8	1,125	693	166	125	53	30	85	75	-51
Allen Iverson	28.2	35.6	NBA Finals	5	47.4	5.6	3.8	1.8	0.2	2.4	13.2	32.4	40.7	2.2	7.8	7.0	9.6	72.9	237	178	28	19	9	1	12	12	-25
Devin Booker	26.8	28.2	NBA Finals	6	40.2	3.5	4.0	0.8	0.3	3.2	10.8	23.8	45.5	1.8	6.8	4.7	5.3	87.5	241	169	21	24	5	2	19	23	+12
Allan Houston	16.7	21.6	NBA Finals	5	44.4	3.2	3.4	0.4	0.0	2.6	8.2	19.2	42.7	0.4	2.4	4.8	5.2	92.3	222	108	16	17	2	0	13	9	-4
Clyde Drexler	15.6	24.5	NBA Finals	15	40.3	8.3	6.0	1.4	0.5	2.7	8.4	18.1	46.3	0.5	3.0	7.2	8.7	82.4	604	367	124	90	21	8	41	61
Russell Westbrook	13.6	27.0	NBA Finals	5	42.3	6.4	6.6	1.0	0.4	2.2	10.4	24.0	43.3	0.6	4.4	5.6	6.8	82.4	211	135	32	33	5	2	11	12	-17