Kelsey Plum has the highest plus/minus in a season, at +555 in 2023.

Interpreted as:

highest single season plus minus by a player

	NAME	+/-	SEASON	TM	GP	MPG	PPG	RPG	APG	SPG	BPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TPG	MIN	PTS	REB	AST	STL	BLK	TOV	PF
1	Kelsey Plum K. Plum	+555	2023	LVA	39	32.4	18.7	2.4	4.5	1.1	0.0	6.4	13.4	47.5	2.4	6.3	38.9	3.5	3.8	91.2	61.8	0.2	2.2	2.1	1,265	728	95	177	43	0	82	94
2	Jackie Young J. Young	+512	2023	LVA	40	31.5	17.6	4.0	3.8	1.3	0.1	6.2	11.9	52.3	2.2	5.0	44.9	2.9	3.4	86.7	65.7	0.7	3.4	1.8	1,259	704	160	151	52	5	70	80
3	A'ja Wilson A. Wilson	+487	2023	LVA	40	30.7	22.8	9.5	1.6	1.4	2.2	8.4	15.0	55.7	0.2	0.7	31.0	5.8	7.2	81.2	62.7	2.1	7.5	1.6	1,228	912	380	64	56	89	62	85
4	Chelsea Gray C. Gray	+437	2023	LVA	40	32.2	15.3	4.0	7.3	1.4	0.6	5.6	11.5	49.0	1.6	3.8	42.1	2.4	2.7	89.7	60.3	0.3	3.7	2.5	1,288	610	158	291	57	25	101	73
5	Sheryl Swoopes S. Swoopes	+399	2000	HOU	31	35.2	20.7	6.3	3.8	2.8	1.1	7.9	15.6	50.6	1.1	2.9	37.4	3.8	4.7	82.1	58.7	1.3	5.0	2.6	1,091	643	195	119	87	33	82	67
6	Diana Taurasi D. Taurasi	+387	2014	PHX	33	31.0	16.2	3.8	5.6	0.7	0.3	5.2	11.4	45.4	1.9	5.2	36.5	4.0	4.6	87.4	60.4	0.3	3.5	2.6	1,024	536	125	185	22	10	87	99
7	Tina Thompson T. Thompson	+374	2000	HOU	32	34.0	16.9	7.7	1.5	1.5	0.8	6.0	12.7	46.9	1.7	4.1	41.7	3.2	3.8	83.7	58.6	2.1	5.5	2.6	1,087	540	245	48	47	25	84	88
8	Elena Delle Donne E. Delle Donne	+371	2019	WAS	31	28.7	19.5	8.3	2.2	0.6	1.3	7.1	13.8	51.5	1.7	3.9	43.0	3.7	3.8	97.4	63.3	1.5	6.7	1.0	891	606	256	68	18	40	30	32
9	Maya Moore M. Moore	+367	2017	MIN	34	31.3	17.3	5.0	3.5	1.9	0.4	6.1	13.8	44.2	1.9	4.6	41.1	3.2	3.7	85.8	56.1	1.5	3.5	1.8	1,063	588	171	119	64	14	61	80
10	Janeth Arcain J. Arcain	+367	2000	HOU	32	30.5	8.4	3.7	1.9	1.3	0.1	3.4	7.3	46.8	0.3	1.4	20.0	1.3	1.5	83.7	52.6	1.1	2.6	1.7	977	268	119	60	42	3	53	66
11	Cynthia Cooper C. Cooper	+364	2000	HOU	31	35.0	17.7	2.7	5.0	1.3	0.2	5.8	12.6	45.9	1.4	3.9	35.5	4.7	5.4	87.5	59.0	0.5	2.2	3.2	1,086	550	85	156	39	6	99	61
12	Maya Moore M. Moore	+357	2016	MIN	34	29.7	19.3	5.1	4.2	1.6	0.7	6.6	14.6	44.8	1.9	4.7	40.4	4.3	4.9	86.8	57.4	1.3	3.9	2.3	1,009	656	175	142	53	25	79	88
13	Breanna Stewart B. Stewart	+356	2023	NYL	40	34.1	23.0	9.3	3.8	1.5	1.6	7.9	17.0	46.5	2.1	5.8	35.5	5.1	6.0	85.1	58.5	1.6	7.7	1.5	1,365	919	371	150	58	63	58	75
14	Brittney Griner B. Griner	+354	2014	PHX	34	30.9	15.6	8.0	1.6	0.6	3.8	6.4	11.1	57.8	0.0	0.0		2.7	3.4	80.2	61.7	1.8	6.1	1.9	1,051	531	271	56	22	129	65	109
15	Candice Dupree C. Dupree	+350	2014	PHX	34	31.4	14.5	7.6	2.4	0.9	0.5	6.2	11.6	53.3	0.0	0.0		2.1	2.5	84.9	57.1	1.2	6.4	1.4	1,068	493	257	80	29	18	48	47
16	Maya Moore M. Moore	+350	2012	MIN	34	29.7	16.4	6.0	3.6	1.5	0.6	5.9	12.6	46.5	2.1	5.5	38.8	2.6	2.9	87.9	59.2	2.1	3.9	1.8	1,011	558	205	124	50	22	62	86
17	Cynthia Cooper C. Cooper	+345	1998	HOU	30	35.0	22.7	3.7	4.4	1.6	0.4	6.8	15.2	44.6	2.1	5.3	40.0	7.0	8.2	85.4	60.4	0.8	2.8	3.2	1,051	680	110	131	48	11	95	65
18	Napheesa Collier N. Collier	+343	2025	MIN	33	32.3	22.9	7.3	3.2	1.6	1.5	8.3	15.7	53.1	1.5	3.8	40.3	4.7	5.2	90.6	63.6	1.9	5.4	2.1	1,065	755	241	105	54	50	70	78
19	Maya Moore M. Moore	+341	2013	MIN	34	31.4	18.5	6.2	3.0	1.7	1.0	6.9	13.5	50.9	2.1	4.7	45.3	2.6	3.0	88.2	62.4	1.7	4.4	1.7	1,068	628	210	101	59	33	57	97
20	Naz Hillmon N. Hillmon	+335	2025	ATL	44	25.5	8.6	6.2	2.4	0.5	0.4	3.2	6.8	46.3	1.2	3.8	32.1	1.1	1.3	83.1	58.3	1.6	4.6	1.1	1,122	380	271	105	21	19	50	74
21	Jonquel Jones J. Jones	+335	2021	CON	27	31.7	19.4	11.2	2.8	1.3	1.3	7.1	13.8	51.5	1.6	4.3	36.2	3.6	4.5	80.2	61.4	2.5	8.7	2.9	856	523	303	75	34	34	78	84
22	Ariel Atkins A. Atkins	+335	2019	WAS	33	24.3	10.3	2.8	1.9	1.5	0.5	3.7	9.0	41.6	1.5	4.3	35.7	1.3	1.6	81.1	53.2	0.7	2.1	1.0	803	340	93	64	48	18	34	73
23	Sylvia Fowles S. Fowles	+332	2017	MIN	34	30.8	18.9	10.4	1.5	1.3	2.0	7.5	11.4	65.5	0.0	0.0		4.0	5.2	76.8	69.1	3.6	6.8	2.4	1,048	644	354	52	44	67	83	93
24	Courtney Vandersloot C. Vandersloot	+326	2023	NYL	39	30.4	10.5	3.5	8.1	1.3	0.6	4.1	9.3	44.2	0.9	3.2	29.4	1.3	1.7	76.1	52.1	0.5	3.0	2.7	1,187	410	136	314	51	23	104	78
25	Jonquel Jones J. Jones	+326	2023	NYL	40	25.0	11.3	8.4	1.8	0.6	1.3	4.4	8.4	52.7	0.8	2.3	35.2	1.7	2.0	86.3	61.3	2.6	5.8	2.1	1,001	453	336	73	23	51	83	113