LeBron James has the highest career plus/minus in the playoffs, at +1311.

Interpreted as:

best plus minus by a player this NBA playoffs

NAME	+/-	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
LeBron James	+1311	287	41.3	28.4	9.0	7.2	1.7	1.0	3.6	10.2	20.5	49.7	1.6	4.9	33.2	6.4	8.6	74.1	11,858	8,162	2,583	2,067	483	275	1,034	655
Tim Duncan	+1090	251	37.3	20.6	11.4	3.0	0.7	2.3	2.5	7.9	15.7	50.1	0.0	0.1	14.3	4.8	7.0	68.9	9,370	5,172	2,859	764	168	568	633	701
Draymond Green	+993	157	34.7	11.6	8.9	6.2	1.5	1.4	2.6	4.1	9.2	44.9	1.0	3.3	30.4	2.3	3.2	72.7	5,446	1,825	1,391	974	240	214	411	593
Manu Ginobili	+951	218	27.9	14.0	4.0	3.8	1.3	0.3	2.2	4.4	10.1	43.3	1.5	4.2	35.8	3.8	4.6	81.7	6,075	3,054	874	827	292	61	481	588
Stephen Curry	+945	147	37.4	27.0	5.3	6.2	1.5	0.3	3.3	9.0	19.9	45.3	4.2	10.6	39.7	4.7	5.3	88.9	5,492	3,966	786	912	223	44	489	375
Derek Fisher	+725	259	26.5	8.3	2.2	2.3	1.1	0.1	0.9	2.8	6.7	42.2	1.1	2.8	39.9	1.5	1.9	80.5	6,856	2,146	578	598	272	16	237	645
Kawhi Leonard	+649	139	35.5	21.3	7.8	2.9	1.8	0.7	1.9	7.6	14.8	51.1	1.7	4.2	39.9	4.4	5.3	84.4	4,929	2,958	1,089	399	248	94	263	311
Kevin Durant	+643	170	40.5	29.3	7.8	4.2	1.0	1.2	3.2	9.9	20.8	47.7	2.2	6.1	35.6	7.4	8.5	86.8	6,893	4,985	1,327	709	172	204	550	427
Shaquille O'Neal	+638	180	37.3	24.1	11.7	2.5	0.5	2.2	2.9	9.4	16.8	55.9	0.0	0.0		5.3	10.6	50.3	6,708	4,339	2,098	450	88	395	522	632
Klay Thompson	+615	158	36.9	19.2	4.0	2.2	0.9	0.5	1.7	7.1	16.4	43.6	3.2	7.8	40.5	1.8	2.1	84.5	5,830	3,032	626	351	150	85	274	411
Danny Green	+602	169	25.3	7.9	3.2	1.2	1.0	0.7	0.8	2.8	7.0	40.4	1.9	4.8	38.8	0.4	0.6	74.5	4,271	1,338	541	200	176	125	143	347
Robert Horry	+590	179	25.3	6.4	5.3	2.0	0.9	0.8	1.0	2.2	5.2	41.7	0.9	2.5	34.3	1.2	1.7	72.9	4,522	1,154	946	355	170	150	187	521
Ray Allen	+586	171	35.5	16.1	3.8	2.6	1.0	0.2	1.6	5.4	12.3	44.3	2.3	5.6	40.1	3.0	3.4	88.3	6,064	2,749	648	449	164	41	274	402
Tony Parker	+581	226	34.3	17.9	2.9	5.1	0.9	0.1	2.6	7.1	15.5	46.1	0.5	1.7	30.9	3.1	4.2	73.1	7,758	4,045	666	1,143	198	19	594	429
Chauncey Billups	+578	146	36.4	17.3	3.4	5.7	1.0	0.2	2.2	5.0	12.3	41.1	1.8	5.0	36.6	5.4	6.1	88.0	5,321	2,526	492	831	148	23	322	373
Kobe Bryant	+555	220	39.3	25.6	5.1	4.7	1.4	0.7	2.9	9.2	20.5	44.8	1.3	4.0	33.1	6.0	7.4	81.6	8,641	5,640	1,119	1,040	310	144	647	660
Kyrie Irving	+525	91	37.4	23.2	3.7	4.9	1.4	0.6	2.3	8.5	18.5	46.0	2.4	6.0	39.8	3.8	4.3	88.1	3,400	2,112	338	446	125	53	206	221
Tayshaun Prince	+451	140	35.6	11.4	5.2	2.6	0.8	0.6	1.3	4.4	10.3	42.7	0.7	2.1	34.3	1.9	2.4	77.4	4,977	1,602	732	368	109	86	181	244
Dwyane Wade	+432	177	37.8	22.3	5.2	4.9	1.5	1.0	3.3	8.2	17.3	47.4	0.6	1.7	33.8	5.4	6.9	78.0	6,697	3,954	928	870	273	175	583	467
Richard Hamilton	+415	130	38.8	19.8	3.9	3.6	0.9	0.2	2.7	7.3	16.5	43.9	0.5	1.6	34.0	4.7	5.5	86.0	5,039	2,571	506	467	122	24	348	401
Jayson Tatum	+406	108	38.9	24.1	7.9	4.8	1.1	0.9	2.9	8.1	18.2	44.3	2.3	6.7	34.9	5.6	6.7	83.4	4,202	2,600	857	513	121	97	310	286
Ben Wallace	+368	130	34.8	7.2	11.2	1.3	1.5	1.9	1.0	2.8	5.8	48.2	0.0	0.1	0.0	1.6	3.9	41.8	4,524	939	1,454	173	199	250	136	296
David Robinson	+362	70	30.5	13.5	9.7	1.8	1.2	2.1	1.8	4.6	9.9	46.6	0.0	0.0	0.0	4.3	6.3	68.5	2,137	948	678	124	84	147	127	223
Rasheed Wallace	+325	177	33.0	13.5	6.2	1.5	0.8	1.3	1.3	5.2	11.7	44.4	1.1	3.1	35.2	2.0	2.8	71.7	5,838	2,384	1,099	264	145	225	228	645
Joel Embiid	+324	59	35.3	24.9	10.9	3.1	0.8	1.7	3.7	7.9	17.2	45.9	1.1	3.8	28.9	8.0	9.7	82.8	2,083	1,469	641	182	49	102	218	197