5 players were tied for losing the most games in the 1983 playoffs, with 7 losses. The first three are Kareem Abdul-Jabbar, Michael Cooper and Magic Johnson.

most all-time loss in 1983 playoffs by a player

NAME	L	SEASON	TM	GP	MPG	PPG	RPG	APG	SPG	BPG	TPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	MIN	PTS	REB	AST	STL	BLK	TOV	PF
Kareem Abdul-Jabbar	7	1982-83	LAL	15	39.2	27.1	7.7	2.8	1.1	3.7	3.3	10.9	19.1	56.8	0.0	0.1	0.0	5.3	7.1	75.5	588	406	115	42	17	55	50	61
Michael Cooper	7	1982-83	LAL	15	30.2	9.4	3.9	2.9	1.7	0.4	1.3	3.5	7.6	46.5	0.1	0.5	14.3	2.3	2.7	82.9	453	141	59	44	26	6	19	54
Magic Johnson	7	1982-83	LAL	15	42.9	17.9	8.5	12.8	2.3	0.8	4.3	6.7	13.7	48.5	0.0	0.7	0.0	4.5	5.4	84.0	643	268	128	192	34	12	64	49
Kurt Rambis	7	1982-83	LAL	15	25.1	7.5	6.0	1.3	0.9	1.1	1.5	3.0	5.3	57.0	0.0	0.0		1.5	2.3	65.7	377	113	90	19	13	16	23	51
Jamaal Wilkes	7	1982-83	LAL	15	39.3	19.9	6.0	3.4	1.3	0.7	2.2	9.1	18.2	49.8	0.0	0.1	0.0	1.8	2.9	61.4	589	299	90	51	20	11	33	51
Norm Nixon	6	1982-83	LAL	14	38.4	19.0	3.4	6.4	1.3	0.1	2.4	8.1	16.9	47.7	0.2	0.5	42.9	2.6	3.6	74.0	538	266	48	90	18	1	34	40
Danny Ainge	5	1982-83	BOS	7	28.7	9.4	2.0	3.6	0.7	0.1	0.9	4.0	10.3	38.9	0.3	0.7	40.0	1.1	1.6	72.7	201	66	14	25	5	1	6	24
Nate Archibald	5	1982-83	BOS	7	23.0	9.6	1.4	6.3	0.3	0.0	1.6	3.1	9.7	32.4	0.1	0.9	16.7	3.1	4.1	75.9	161	67	10	44	2	0	11	12
Gene Banks	5	1982-83	SAS	11	36.2	15.9	6.9	4.5	1.0	0.1	1.9	6.9	13.6	50.7	0.0	0.0		2.1	3.2	65.7	398	175	76	50	11	1	21	25
Quinn Buckner	5	1982-83	BOS	7	14.0	4.6	1.4	0.3	0.1	0.0	0.7	2.3	5.3	43.2	0.0	0.3	0.0	0.0	0.3	0.0	98	32	10	2	1	0	5	18
Mike Dunleavy	5	1982-83	SAS	11	15.8	5.5	1.2	4.5	0.8	0.1	1.3	2.0	5.9	33.8	0.7	2.7	26.7	0.8	1.2	69.2	174	61	13	49	9	1	14	22
T.R. Dunn	5	1982-83	DEN	8	37.5	5.1	9.8	2.5	1.5	0.4	1.8	2.3	5.1	43.9	0.0	0.0		0.6	1.0	62.5	300	41	78	20	12	3	14	21
Mike Evans	5	1982-83	DEN	8	22.9	10.8	2.4	4.8	0.6	0.0	2.8	4.5	9.3	48.6	0.4	1.3	30.0	1.4	2.1	64.7	183	86	19	38	5	0	22	20
George Gervin	5	1982-83	SAS	11	39.7	25.2	6.7	3.4	1.1	0.4	4.2	9.8	18.9	51.9	0.0	0.2	0.0	5.5	6.3	88.4	437	277	74	37	12	4	46	39
Artis Gilmore	5	1982-83	SAS	11	36.5	16.7	12.9	1.6	0.8	3.1	2.5	6.9	12.0	57.6	0.0	0.0		2.9	4.2	69.6	401	184	142	18	9	34	27	46
Bill Hanzlik	5	1982-83	DEN	8	19.6	6.8	3.1	2.6	0.8	0.6	1.4	2.5	6.3	40.0	0.0	0.3	0.0	1.8	2.1	82.4	157	54	25	21	6	5	11	26
Gerald Henderson	5	1982-83	BOS	7	26.7	10.9	2.0	4.4	1.6	0.1	2.0	5.0	12.1	41.2	0.0	0.4	0.0	0.9	1.0	85.7	187	76	14	31	11	1	14	25
Dan Issel	5	1982-83	DEN	8	28.4	20.4	7.3	3.1	1.1	0.6	1.3	8.6	17.0	50.7	0.0	0.1	0.0	3.1	3.6	86.2	227	163	58	25	9	5	10	18
Edgar Jones	5	1982-83	SAS	11	17.5	6.8	4.8	1.5	0.5	1.3	1.6	2.5	5.6	45.2	0.0	0.2	0.0	1.7	3.0	57.6	193	75	53	17	6	14	18	44
Mark Landsberger	5	1982-83	LAL	11	12.8	2.4	4.0	0.3	0.0	0.2	0.5	1.1	2.5	42.9	0.0	0.1	0.0	0.2	0.4	50.0	141	26	44	3	0	2	6	24
Cedric Maxwell	5	1982-83	BOS	7	35.1	12.9	7.3	3.3	0.6	0.6	2.7	4.1	7.9	52.7	0.0	0.0		4.6	5.4	84.2	246	90	51	23	4	4	19	18
Kevin McHale	5	1982-83	BOS	7	25.3	11.1	6.0	0.7	0.4	1.0	1.4	4.9	8.9	54.8	0.0	0.1	0.0	1.4	2.6	55.6	177	78	42	5	3	7	10	16
Billy McKinney	5	1982-83	DEN	8	14.1	7.8	1.6	2.3	0.3	0.0	0.9	3.3	5.8	56.5	0.0	0.0		1.3	2.3	55.6	113	62	13	18	2	0	7	15
Mike Mitchell	5	1982-83	SAS	11	38.4	20.9	9.5	1.1	0.6	1.7	2.3	9.3	18.2	51.0	0.1	0.2	50.0	2.3	3.0	75.8	422	230	105	12	7	19	25	34
Johnny Moore	5	1982-83	SAS	11	37.6	22.5	4.3	14.6	2.5	0.3	2.5	9.5	17.9	53.3	0.8	1.5	52.9	2.5	3.2	80.0	414	247	47	161	28	3	28	41