Between the 2009-10 and 2018-19 seasons, Nick Leddy had the lowest plus/minus in a season, at -42 in 2017-18.

Interpreted as:

worst single season plus minus by a player 2010s

	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	Nick Leddy N. Leddy	-42	2017-18	NYI	80	10	32	42	20	4	10	0	0	1	1	153	6.5	0	0		95	104	21	57	22:25
2	Rasmus Ristolainen R. Ristolainen	-41	2018-19	BUF	78	5	38	43	38	1	16	0	0	2	1	182	2.7	0	0		235	121	23	44	24:38
3	Alexander Edler A. Edler	-39	2013-14	VAN	63	7	15	22	50	4	8	0	0	0	0	178	3.9	2	3	66.7	112	136	28	34	23:17
4	Steve Ott S. Ott	-38	2013-14	TOT	82	9	14	23	92	6	2	0	0	1	0	127	7.1	494	917	53.9	246	35	15	28	18:14
5	Nail Yakupov N. Yakupov	-35	2014-15	EDM	81	14	19	33	18	5	5	0	0	1	0	191	7.3	0	1	0.0	97	28	34	55	15:27
6	Alex Ovechkin A. Ovechkin	-35	2013-14	WSH	78	51	28	79	48	24	15	0	1	10	3	386	13.2	2	3	66.7	204	22	32	48	20:33
7	Chris Phillips C. Phillips	-35	2010-11	OTT	82	1	8	9	32	0	1	0	0	0	0	81	1.2	0	0		116	152	26	54	21:31
8	Patrick O'Sullivan P. O'Sullivan	-35	2009-10	EDM	73	11	23	34	32	3	9	1	0	3	0	191	5.8	71	195	36.4	32	52	29	45	17:31
9	Drew Doughty D. Doughty	-34	2018-19	LAK	82	8	37	45	44	7	17	0	1	1	1	154	5.2	0	0		168	120	23	105	26:36
10	Kyle Okposo K. Okposo	-34	2017-18	BUF	76	15	29	44	40	6	15	0	0	2	0	161	9.3	23	50	46.0	70	34	24	28	17:02
11	Tyson Barrie T. Barrie	-34	2016-17	COL	74	7	31	38	18	1	9	0	0	2	0	182	3.8	0	0		32	75	22	51	23:18
12	Matt Duchene M. Duchene	-34	2016-17	COL	77	18	23	41	12	3	6	1	0	3	1	160	11.3	687	1,098	62.6	42	41	60	46	18:18
13	Tyler Bozak T. Bozak	-34	2014-15	TOR	82	23	26	49	44	12	6	2	0	3	0	154	14.9	944	1,775	53.2	83	46	68	23	19:09
14	Phil Kessel P. Kessel	-34	2014-15	TOR	82	25	36	61	30	8	17	0	0	4	1	280	8.9	2	5	40.0	18	13	34	64	18:48
15	Milan Jurcina M. Jurcina	-34	2011-12	NYI	65	3	8	11	30	2	1	0	0	0	0	127	2.4	0	0		173	116	26	25	18:47
16	Mikkel Boedker M. Boedker	-33	2015-16	TOT	80	17	34	51	12	3	16	0	0	5	3	166	10.2	1	3	33.3	51	31	38	32	18:32
17	Teddy Purcell T. Purcell	-33	2014-15	EDM	82	12	22	34	24	5	7	0	0	0	0	146	8.2	4	7	57.1	24	19	46	35	17:10
18	James van Riemsdyk J. van Riemsdyk	-33	2014-15	TOR	82	27	29	56	43	9	10	1	0	4	1	248	10.9	21	54	38.9	83	29	46	27	19:05
19	Nail Yakupov N. Yakupov	-33	2013-14	EDM	63	11	13	24	36	4	2	0	0	1	0	122	9.0	0	0		64	23	18	32	14:19
20	Zack Smith Z. Smith	-32	2017-18	OTT	68	5	14	19	54	0	3	0	1	1	0	124	4.0	297	620	47.9	90	29	27	29	16:43
21	Rasmus Ristolainen R. Ristolainen	-32	2014-15	BUF	78	8	12	20	26	4	5	0	0	0	0	121	6.6	1	1	100.0	118	136	9	35	20:37
22	Alex Galchenyuk A. Galchenyuk	-31	2017-18	MTL	82	19	32	51	22	9	15	0	0	2	0	213	8.9	49	109	45.0	33	37	29	56	16:14
23	Alex Goligoski A. Goligoski	-31	2017-18	ARI	78	12	23	35	26	3	8	0	0	3	1	119	10.1	0	0		114	154	16	66	23:17
24	Damon Severson D. Severson	-31	2016-17	NJD	80	3	28	31	58	0	13	0	0	1	0	125	2.4	0	0		79	73	24	54	20:21
25	David Booth D. Booth	-31	2010-11	FLA	82	23	17	40	26	8	2	0	0	3	0	280	8.2	24	48	50.0	129	25	28	24	18:54