LeBron James had his most points in a game against the Celtics on February 15, 2006, with 43 points.

Interpreted as:

lebron career high points in a regular-season game against celtics

	NAME	PTS	DATE	TM		OPP	MIN	REB	AST	STL	BLK	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TOV	PF	+/-
1	LeBron James L. James	43	2/15/2006	CLE	@	BOS	54	12	11	2	4	16	32	50.0	0	5	0.0	11	15	73.3	55.7	1	11	2	5	+5
2	LeBron James L. James	42	4/4/2010	CLE	@	BOS	45	7	9	1	1	14	31	45.2	0	9	0.0	14	22	63.6	51.6	1	6	3	0	-1
3	LeBron James L. James	41	1/28/2023	LAL	@	BOS	44	9	8	0	0	15	30	50.0	6	12	50.0	5	6	83.3	62.8	1	8	2	2	+1
4	LeBron James L. James	41	11/14/2014	CLE	@	BOS	41	4	7	0	1	16	27	59.3	3	8	37.5	6	9	66.7	66.2	0	4	3	4	+10
5	LeBron James L. James	38	10/27/2009	CLE	vs	BOS	45	4	8	2	4	12	22	54.5	4	9	44.4	10	13	76.9	68.5	0	4	5	4	0
6	LeBron James L. James	38	1/9/2009	CLE	vs	BOS	36	7	6	4	3	13	25	52.0	3	7	42.9	9	9	100.0	65.6	1	6	3	2	+20
7	LeBron James L. James	38	11/27/2007	CLE	vs	BOS	46	4	13	2	2	11	25	44.0	2	8	25.0	14	15	93.3	60.1	0	4	3	2	+14
8	LeBron James L. James	38	11/11/2006	CLE	vs	BOS	44	8	5	3	0	9	17	52.9	1	4	25.0	19	23	82.6	70.1	1	7	2	4	+6
9	LeBron James L. James	37	3/18/2013	MIA	@	BOS	42	7	12	2	2	16	29	55.2	1	4	25.0	4	6	66.7	58.5	1	6	5	3	+13
10	LeBron James L. James	37	12/13/2003	CLE	vs	BOS	45	3	4	0	0	10	20	50.0	1	5	20.0	16	18	88.9	66.3	1	2	2	2	-2
11	LeBron James L. James	36	4/5/2017	CLE	@	BOS	39	10	6	1	2	14	22	63.6	1	4	25.0	7	7	100.0	71.8	2	8	3	3	+32
12	LeBron James L. James	36	4/10/2012	MIA	vs	BOS	41	7	7	1	1	11	23	47.8	1	3	33.3	13	14	92.9	61.7	5	2	2	3	-6
13	LeBron James L. James	36	2/25/2010	CLE	@	BOS	36	7	9	0	0	11	23	47.8	3	6	50.0	11	15	73.3	60.8	1	6	2	2	+9
14	LeBron James L. James	36	3/24/2006	CLE	vs	BOS	45	7	8	2	3	13	26	50.0	4	8	50.0	6	8	75.0	61.0	3	4	0	2	+8
15	LeBron James L. James	36	11/22/2005	CLE	vs	BOS	41	5	4	2	2	13	20	65.0	1	3	33.3	9	11	81.8	72.5	0	5	1	4	+14
16	LeBron James L. James	35	11/11/2010	MIA	vs	BOS	44	10	9	3	0	9	21	42.9	0	5	0.0	17	22	77.3	57.0	0	10	4	3	0
17	LeBron James L. James	34	1/27/2013	MIA	@	BOS	52	16	7	3	1	14	31	45.2	3	6	50.0	3	5	60.0	51.2	4	12	3	3	-2
18	LeBron James L. James	33	12/13/2022	LAL	vs	BOS	43	9	9	2	1	14	25	56.0	3	11	27.3	2	4	50.0	61.7	0	9	4	4	+10
19	LeBron James L. James	33	2/5/2008	CLE	vs	BOS	42	9	12	5	2	11	21	52.4	4	8	50.0	7	10	70.0	65.0	1	8	7	5	+12
20	LeBron James L. James	32	1/3/2007	CLE	@	BOS	45	6	4	3	1	11	20	55.0	2	3	66.7	8	10	80.0	65.6	1	5	3	0	+3
21	LeBron James L. James	32	4/19/2005	CLE	vs	BOS	47	8	6	5	0	13	27	48.1	2	3	66.7	4	5	80.0	54.8	1	7	3	3	+13
22	LeBron James L. James	31	10/26/2010	MIA	@	BOS	43	4	3	1	2	10	21	47.6	3	6	50.0	8	12	66.7	59.0	0	4	8	1	+1
23	LeBron James L. James	31	12/18/2004	CLE	vs	BOS	40	5	4	3	1	12	25	48.0	3	5	60.0	4	8	50.0	54.3	1	4	4	6	-1
24	LeBron James L. James	30	12/7/2021	LAL	vs	BOS	36	4	5	0	0	13	19	68.4	2	5	40.0	2	2	100.0	75.5	2	2	3	2	+18
25	LeBron James L. James	30	3/9/2019	LAL	vs	BOS	28	10	12	0	0	13	23	56.5	1	5	20.0	3	7	42.9	57.5	2	8	3	0	+11