7 players are tied for losing the most games with the Celtics this season, with 4 losses. The first three are Jaylen Brown, Derrick White and Chris Boucher.

Interpreted as:

most losses by a player for the celtics this regular season

	NAME	L	SEASON	TM	GP	MPG	PPG	RPG	APG	SPG	BPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TPG	MIN	PTS	REB	AST	STL	BLK	TOV	PF	+/-
1	Jaylen Brown J. Brown	4	2025-26	BOS	7	31.0	25.4	4.7	4.3	0.6	0.4	9.4	17.6	53.7	2.7	5.9	46.3	3.9	5.1	75.0	64.1	0.4	4.3	4.0	217	178	33	30	4	3	28	28	-22
2	Derrick White D. White	4	2025-26	BOS	7	32.3	15.0	3.6	4.0	1.4	1.0	5.1	16.7	30.8	2.4	9.7	25.0	2.3	2.6	88.9	42.0	0.7	2.9	1.0	226	105	25	28	10	7	7	13	+9
3	Chris Boucher C. Boucher	4	2025-26	BOS	5	11.2	2.0	1.8	0.4	0.6	1.0	0.8	3.2	25.0	0.0	1.6	0.0	0.4	0.4	100.0	29.6	0.2	1.6	0.2	56	10	9	2	3	5	1	9	-18
4	Anfernee Simons A. Simons	4	2025-26	BOS	7	26.6	13.7	2.4	1.4	0.7	0.3	5.0	12.1	41.2	2.7	6.9	39.6	1.0	1.3	77.8	54.0	0.6	1.9	1.1	186	96	17	10	5	2	8	15	+1
5	Payton Pritchard P. Pritchard	4	2025-26	BOS	7	32.7	14.6	4.1	5.6	1.3	0.0	5.6	13.6	41.1	1.3	7.1	18.0	2.1	2.7	78.9	49.3	1.3	2.9	1.1	229	102	29	39	9	0	8	12	+17
6	Neemias Queta N. Queta	4	2025-26	BOS	7	22.3	8.3	7.6	1.3	0.7	1.6	3.4	5.4	63.2	0.0	0.3	0.0	1.4	2.0	71.4	65.7	2.9	4.7	1.1	156	58	53	9	5	11	8	22	+37
7	Sam Hauser S. Hauser	4	2025-26	BOS	7	23.1	10.4	3.3	1.3	0.4	0.3	3.4	8.0	42.9	3.3	7.3	45.1	0.3	0.3	100.0	64.2	0.9	2.4	1.0	162	73	23	9	3	2	7	10	+12
8	Xavier Tillman X. Tillman	3	2025-26	BOS	6	9.0	3.3	2.5	0.5	0.3	0.2	1.5	2.8	52.9	0.3	1.2	28.6	0.0	0.0		58.8	1.0	1.5	0.2	54	20	15	3	2	1	1	7	-7
9	Luka Garza L. Garza	3	2025-26	BOS	6	14.3	6.2	3.8	0.8	0.2	0.5	2.2	4.2	52.0	0.7	1.8	36.4	1.2	1.5	77.8	63.9	2.2	1.7	0.7	86	37	23	5	1	3	4	18	-9
10	Josh Minott J. Minott	3	2025-26	BOS	6	21.8	8.3	6.8	1.7	1.5	0.5	2.8	6.7	42.5	1.0	3.3	30.0	1.7	2.2	76.9	54.7	2.5	4.3	0.5	131	50	41	10	9	3	3	14	+9
11	Baylor Scheierman B. Scheierman	3	2025-26	BOS	6	9.8	3.3	2.8	0.3	0.5	0.0	1.2	1.8	63.6	0.8	1.5	55.6	0.2	0.2	100.0	87.4	0.5	2.3	0.0	59	20	17	2	3	0	0	4	+9
12	Hugo González H. González	3	2025-26	BOS	5	15.2	3.6	2.2	0.8	1.2	0.2	1.6	4.2	38.1	0.4	1.4	28.6	0.0	0.0		42.9	0.8	1.4	0.4	76	18	11	4	6	1	2	14	+1
13	Jordan Walsh J. Walsh	2	2025-26	BOS	4	6.0	2.5	1.0	0.3	0.0	0.0	1.0	2.5	40.0	0.5	1.3	40.0	0.0	0.0		50.0	0.8	0.3	0.0	24	10	4	1	0	0	0	3	-8
14	Amari Williams A. Williams	2	2025-26	BOS	2	3.5	1.0	1.0	0.5	0.5	0.0	0.5	1.0	50.0	0.0	0.0		0.0	0.0		50.0	0.5	0.5	0.0	7	2	2	1	1	0	0	1	+9
15	Ron Harper Jr. R. Harper Jr.	1	2025-26	BOS	2	5.5	1.0	1.5	1.5	0.0	0.0	0.5	2.5	20.0	0.0	2.0	0.0	0.0	0.0		20.0	0.5	1.0	0.0	11	2	3	3	0	0	0	1	+5