Jeff Schultz had the highest plus/minus by a defenseman in 2009-10, at +50.

	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	Jeff Schultz J. Schultz	+50	2009-10	WSH	73	3	20	23	32	0	0	0	0	0	0	43	7.0	0	0		66	129	13	42	19:52
2	Mike Green M. Green	+39	2009-10	WSH	75	19	57	76	54	10	25	0	1	4	1	205	9.3	0	0		133	105	44	73	25:29
3	Christian Ehrhoff C. Ehrhoff	+36	2009-10	VAN	80	14	30	44	42	6	17	0	0	3	2	181	7.7	0	0		54	82	30	54	22:47
4	Mark Fistric M. Fistric	+27	2009-10	DAL	67	1	9	10	69	0	0	0	1	0	0	46	2.2	0	0		171	79	9	21	14:56
5	Tom Poti T. Poti	+26	2009-10	WSH	70	4	20	24	42	2	4	0	0	0	0	69	5.8	0	0		19	121	35	53	21:24
6	Brian Rafalski B. Rafalski	+23	2009-10	DET	78	8	34	42	26	5	14	0	0	1	1	134	6.0	0	0		39	101	24	72	24:14
7	Nicklas Lidstrom N. Lidstrom	+22	2009-10	DET	82	9	40	49	24	5	15	0	3	1	0	194	4.6	0	0		56	82	36	53	25:26
8	Chris Pronger C. Pronger	+22	2009-10	PHI	82	10	45	55	79	5	21	0	1	2	0	175	5.7	0	0		104	189	40	58	25:56
9	Duncan Keith D. Keith	+21	2009-10	CHI	82	14	55	69	51	3	13	1	4	1	0	213	6.6	0	0		46	143	45	59	26:36
10	Marc-Edouard Vlasic M. Vlasic	+21	2009-10	SJS	64	3	13	16	33	1	1	0	0	0	0	74	4.1	0	0		52	104	13	27	22:05
11	Drew Doughty D. Doughty	+20	2009-10	LAK	82	16	43	59	54	9	22	0	0	5	1	142	11.3	0	0		157	76	20	73	24:59
12	Brent Seabrook B. Seabrook	+20	2009-10	CHI	78	4	26	30	59	0	6	0	2	2	2	129	3.1	0	0		208	153	24	43	23:13
13	Matt Carle M. Carle	+19	2009-10	PHI	80	6	29	35	16	2	12	0	0	1	0	137	4.4	0	0		35	137	34	64	23:23
14	Zdeno Chara Z. Chara	+19	2009-10	BOS	80	7	37	44	87	4	12	0	1	1	0	242	2.9	1	2	50.0	151	104	27	65	25:22
15	Brian Campbell B. Campbell	+18	2009-10	CHI	68	7	31	38	18	3	8	0	1	2	0	131	5.3	0	0		37	79	23	38	23:13
16	Mark Giordano M. Giordano	+17	2009-10	CGY	82	11	19	30	81	5	9	0	0	1	0	111	9.9	0	0		153	126	33	47	20:50
17	John Erskine J. Erskine	+16	2009-10	WSH	50	1	5	6	66	0	0	0	0	0	0	50	2.0	0	0		109	80	11	37	15:59
18	Rob Scuderi R. Scuderi	+16	2009-10	LAK	73	0	11	11	21	0	0	0	0	0	0	38	0.0	0	0		69	109	23	33	19:16
19	Keith Yandle K. Yandle	+16	2009-10	PHX	82	12	29	41	45	5	11	0	0	2	0	145	8.3	0	0		36	82	23	37	20:14
20	Cody Franson C. Franson	+15	2009-10	NSH	61	6	15	21	16	1	5	0	0	3	1	90	6.7	0	0		55	53	19	22	14:12
21	Shane O'Brien S. O'Brien	+15	2009-10	VAN	65	2	6	8	79	0	0	0	1	0	0	37	5.4	0	0		112	52	10	24	17:01
22	Rob Blake R. Blake	+14	2009-10	SJS	70	7	23	30	60	4	4	0	1	1	0	182	3.8	0	0		68	114	19	51	21:21
23	Sami Lepisto S. Lepisto	+14	2009-10	PHX	66	1	10	11	60	0	0	0	0	1	0	68	1.5	1	1	100.0	62	62	21	20	18:14
24	Sean O'Donnell S. O'Donnell	+14	2009-10	LAK	78	3	12	15	70	0	0	0	0	1	0	44	6.8	0	1	0.0	88	98	19	57	18:44
25	Sami Salo S. Salo	+14	2009-10	VAN	68	9	19	28	18	6	7	0	2	3	1	119	7.6	0	0		43	60	16	29	20:41