33 players are tied for the most games with 40+ points in a game 3, with 1 game. The first three are Donovan Mitchell, Khris Middleton and Joel Embiid.

Interpreted as:

most 40 or more point games by a player in game 3

	NAME	GP	PTS	DATE	TM		OPP	MIN	REB	AST	STL	BLK	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TOV	PF	+/-
1	Donovan Mitchell D. Mitchell	1	43	5/9/2025	CLE	@	IND	37	9	5	1	0	14	29	48.3	5	13	38.5	10	14	71.4	61.1	5	4	2	4	+35
2	Khris Middleton K. Middleton	1	42	4/26/2024	MIL	@	IND	41	10	5	0	0	16	29	55.2	4	9	44.4	6	6	100.0	66.4	3	7	3	5	+2
3	Joel Embiid J. Embiid	1	50	4/25/2024	PHI	vs	NYK	41	8	4	0	1	13	19	68.4	5	7	71.4	19	21	90.5	88.5	1	7	3	3	+16
4	Devin Booker D. Booker	1	47	5/5/2023	PHX	vs	DEN	42	6	9	3	1	20	25	80.0	5	8	62.5	2	2	100.0	90.8	0	6	3	5	+7
5	Ja Morant J. Morant	1	45	4/22/2023	MEM	@	LAL	42	9	13	0	0	13	26	50.0	6	10	60.0	13	14	92.9	70.0	3	6	3	2	+3
6	Devin Booker D. Booker	1	45	4/20/2023	PHX	@	LAC	45	6	3	3	2	18	29	62.1	3	7	42.9	6	7	85.7	70.1	1	5	0	2	+3
7	Norman Powell N. Powell	1	42	4/20/2023	LAC	vs	PHX	41	5	3	0	1	15	23	65.2	7	12	58.3	5	7	71.4	80.5	0	5	4	3	0
8	Luka Dončić L. Dončić	1	40	5/22/2022	DAL	vs	GSW	40	11	3	1	2	11	23	47.8	4	9	44.4	14	17	82.4	65.6	0	11	3	3	-19
9	Jaylen Brown J. Brown	1	40	5/21/2022	BOS	vs	MIA	42	9	1	1	1	14	20	70.0	3	9	33.3	9	12	75.0	79.1	2	7	7	2	-6
10	Giannis Antetokounmpo G. Antetokounmpo	1	42	5/7/2022	MIL	vs	BOS	39	12	8	2	2	16	30	53.3	1	6	16.7	9	12	75.0	59.5	2	10	3	4	-2
11	Giannis Antetokounmpo G. Antetokounmpo	1	41	7/11/2021	MIL	vs	PHX	38	13	6	1	0	14	23	60.9	0	2	0.0	13	17	76.5	67.3	4	9	1	3	+20
12	James Harden J. Harden	1	41	5/28/2021	BKN	@	BOS	39	7	10	1	0	11	18	61.1	7	12	58.3	12	13	92.3	86.4	1	6	2	1	+13
13	Jayson Tatum J. Tatum	1	50	5/28/2021	BOS	vs	BKN	41	6	7	2	1	16	30	53.3	5	11	45.5	13	15	86.7	68.3	0	6	1	3	+1
14	Luka Dončić L. Dončić	1	44	5/28/2021	DAL	vs	LAC	39	9	9	1	0	15	28	53.6	7	13	53.8	7	13	53.8	65.2	2	7	5	2	+3
15	Jimmy Butler III J. Butler III	1	40	10/4/2020	MIA	vs	LAL	45	11	13	2	2	14	20	70.0	0	0		12	14	85.7	76.5	1	10	5	0	+20
16	Stephen Curry S. Curry	1	47	6/5/2019	GSW	vs	TOR	43	8	7	2	0	14	31	45.2	6	14	42.9	13	14	92.9	63.2	2	6	3	1	-8
17	Kevin Durant K. Durant	1	46	5/4/2019	GSW	@	HOU	50	3	6	0	0	14	31	45.2	6	10	60.0	12	12	100.0	63.4	0	3	0	1	-6
18	James Harden J. Harden	1	41	5/4/2019	HOU	vs	GSW	45	9	6	1	0	14	32	43.8	5	13	38.5	8	8	100.0	57.7	2	7	3	4	-4
19	CJ McCollum	1	41	5/3/2019	POR	vs	DEN	60	8	4	4	1	16	39	41.0	4	11	36.4	5	6	83.3	49.2	2	6	1	4	+6
20	Kevin Durant K. Durant	1	43	6/6/2018	GSW	@	CLE	43	13	7	1	1	15	23	65.2	6	9	66.7	7	7	100.0	82.4	1	12	3	3	+15
21	James Harden J. Harden	1	43	5/5/2017	HOU	vs	SAS	40	2	5	3	0	14	28	50.0	5	13	38.5	10	11	90.9	65.5	1	1	5	4	-14
22	James Harden J. Harden	1	44	4/21/2017	HOU	@	OKC	38	6	6	0	1	11	21	52.4	4	12	33.3	18	18	100.0	76.1	1	5	7	5	+1
23	Gordon Hayward G. Hayward	1	40	4/21/2017	UTA	vs	LAC	42	9	4	0	2	13	21	61.9	4	8	50.0	10	11	90.9	77.4	0	9	5	4	-5
24	LeBron James L. James	1	41	4/20/2017	CLE	@	IND	45	13	12	1	2	14	27	51.9	6	12	50.0	7	14	50.0	61.8	1	12	3	4	+13
25	Damian Lillard D. Lillard	1	40	5/7/2016	POR	vs	GSW	42	5	10	0	0	14	27	51.9	8	13	61.5	4	4	100.0	69.5	3	2	3	2	+7