Wayne Gretzky has the highest plus/minus in a single NHL playoff run, at +27 in 1984-85.

Interpreted as:

highest plus minus by a player in one playoff run

	NAME	+/-	SEASON	TM	GP	G	A	P	PIM	PPG	PPA	SHG	SHA	GWG	OTG	S	S%	FOW	FO	FOW%	HIT	BKS	TKA	GVA	TOI/GP
1	Wayne Gretzky W. Gretzky	+27	1984-85	EDM	18	17	30	47	4	4	3	2	3	3	0	67	25.4
2	Bobby Orr B. Orr	+24	1969-70	BOS	14	9	11	20	14	3	4	1	3	2	1	78	11.5
3	Paul Coffey P. Coffey	+23	1984-85	EDM	18	12	25	37	44	3	7	1	1	4	0	67	17.9
4	Jari Kurri J. Kurri	+23	1984-85	EDM	18	19	12	31	6	1	3	2	1	2	0	91	20.9
5	Charlie Huddy C. Huddy	+21	1984-85	EDM	18	3	17	20	17	1	6	0	1	0	0	49	6.1
6	Andre Dupont A. Dupont	+21	1979-80	PHI	19	0	4	4	50	0	0	0	1	0	0	12	0.0
7	Larry Robinson L. Robinson	+21	1977-78	MTL	15	4	17	21	6	2	6	0	0	0	0	41	9.8
8	Serge Savard S. Savard	+21	1977-78	MTL	15	1	7	8	8	0	3	0	0	0	0	22	4.5
9	Dallas Smith D. Smith	+21	1971-72	BOS	15	0	4	4	22	0	0	0	0	0	0	18	0.0
10	Nathan Horton N. Horton	+20	2012-13	BOS	22	7	12	19	14	2	2	0	0	3	0	38	18.4	1	2	50.0	25	6	14	15	18:29
11	Wayne Gretzky W. Gretzky	+20	1982-83	EDM	16	12	26	38	4	2	6	3	5	3	0	76	15.8
12	Denis Potvin D. Potvin	+20	1982-83	NYI	20	8	12	20	22	4	8	0	0	1	0	68	11.8
13	Ken Morrow K. Morrow	+20	1980-81	NYI	18	3	4	7	8	0	0	0	1	1	1	18	16.7
14	Guy Lafleur G. Lafleur	+20	1976-77	MTL	14	9	17	26	6	1	5	0	0	2	0	57	15.8
15	Bobby Orr B. Orr	+20	1971-72	BOS	15	5	19	24	19	3	7	0	2	1	0	61	8.2
16	Brian Leetch B. Leetch	+19	1993-94	NYR	23	11	23	34	6	4	10	0	0	4	0	88	12.5
17	Chris Chelios C. Chelios	+19	1991-92	CHI	18	6	15	21	37	3	3	0	0	1	0	54	11.1
18	Bob Bourne B. Bourne	+19	1982-83	NYI	20	8	20	28	14	0	5	1	0	2	0	49	16.3
19	Don Awrey D. Awrey	+19	1969-70	BOS	14	0	5	5	32	0	0	0	1	0	0	16	0.0
20	Ryan McDonagh R. McDonagh	+18	2020-21	TBL	23	0	8	8	14	0	0	0	1	0	0	23	0.0	0	0		53	46	12	21	22:50
21	Randy Gregg R. Gregg	+18	1984-85	EDM	17	0	6	6	12	0	0	0	0	0	0	17	0.0
22	Paul Coffey P. Coffey	+18	1983-84	EDM	19	8	14	22	21	2	5	0	0	1	0	66	12.1
23	Wayne Gretzky W. Gretzky	+18	1983-84	EDM	19	13	22	35	12	2	6	1	1	3	0	87	14.9
24	Charlie Huddy C. Huddy	+18	1983-84	EDM	12	1	9	10	8	0	1	0	1	0	0	35	2.9
25	Ken Morrow K. Morrow	+18	1982-83	NYI	19	5	7	12	18	0	0	0	0	0	0	42	11.9