Darius Johnson-Odom has the lowest career PER when playing 20+ minutes, with an -18.4 rating.

Interpreted as:

lowest per by a player minimum 20 minutes

	NAME	PER	MIN	GP	MPG	PPG	RPG	APG	SPG	BPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TPG	PTS	REB	AST	STL	BLK	TOV	PF	+/-
1	Darius Johnson-Odom D. Johnson-Odom	-18.4	21	7	3.0	0.0	0.9	0.3	0.1	0.0	0.0	1.6	0.0	0.0	0.6	0.0	0.0	0.3	0.0	0.0	0.1	0.7	0.3	0	6	2	1	0	2	3	-11
2	Mike Novak M. Novak	-14.7	24	5	4.8	0.2	0.4	0.4			0.0	1.4	0.0				0.2	0.4	50.0	6.3				1	2	2				9
3	Ernest Brown E. Brown	-9.7	21	3	7.0	1.0	2.0	0.0	0.0	0.3	0.3	2.0	16.7	0.0	0.0		0.3	1.3	25.0	19.3	0.3	1.7	1.0	3	6	0	0	1	3	4	-22
4	Luther Green L. Green	-9.4	32	5	6.4	0.6	0.6	0.0			0.0	2.2	0.0				0.6	1.8	33.3	10.0				3	3	0				3
5	Patricio Garino P. Garino	-9.3	43	5	8.6	0.0	1.4	0.0	0.0	0.0	0.0	1.4	0.0	0.0	1.0	0.0	0.0	0.0		0.0	0.2	1.2	0.6	0	7	0	0	0	3	4	-14
6	George King G. King	-8.9	25	5	5.0	0.2	1.2	0.0	0.0	0.0	0.0	1.0	0.0	0.0	0.8	0.0	0.2	0.4	50.0	8.5	0.0	1.2	0.2	1	6	0	0	0	1	4	-36
7	Sun Yue S. Yue	-8.6	28	10	2.8	0.6	0.0	0.2	0.1	0.1	0.3	1.1	27.3	0.0	0.6	0.0	0.0	0.0		27.3	0.0	0.0	0.3	6	0	2	1	1	3	10	-47
8	Don Asmonga D. Asmonga	-7.6	46	7	6.6	0.7	0.1	0.7			0.3	2.1	13.3				0.1	0.1	100.0	16.2				5	1	5				12
9	Rolando Ferreira R. Ferreira	-7.6	34	12	2.8	0.8	1.1	0.1	0.0	0.1	0.1	1.5	5.6	0.0	0.0		0.6	0.7	87.5	20.9	0.3	0.8	0.5	9	13	1	0	1	6	7
10	Ray Corley R. Corley	-6.9	65	8	8.1	1.4	0.6	0.6			0.4	3.0	12.5				0.6	0.8	83.3	20.6				11	5	5				18
11	Kleggie Hermsen K. Hermsen	-6.2	62	10	6.2	1.1	1.9	0.4			0.4	3.1	12.9				0.3	0.5	60.0	16.6				11	19	4				18
12	Kirk Penney K. Penney	-6	30	6	5.0	0.8	0.3	0.3	0.2	0.0	0.3	1.5	22.2	0.2	0.7	25.0	0.0	0.0		27.8	0.0	0.3	0.8	5	2	2	1	0	5	1	-2
13	Pete Darcey P. Darcey	-5.8	90	12	7.5	0.9	0.8	0.2			0.3	1.5	16.7				0.4	0.8	55.6	25.0				11	10	2				29
14	Sharife Cooper S. Cooper	-5.5	39	13	3.0	0.5	0.4	0.4	0.0	0.0	0.2	1.1	21.4	0.1	0.5	16.7	0.0	0.0		25.0	0.0	0.4	0.4	7	5	5	0	0	5	1	-35
15	Isaac Walthour I. Walthour	-5.4	30	4	7.5	0.5	0.3	0.5			0.3	1.5	16.7				0.0	0.0		16.7				2	1	2				6
16	Charles Cooke C. Cooke	-5.2	38	13	2.9	0.5	0.2	0.1	0.1	0.0	0.2	1.1	14.3	0.1	0.6	12.5	0.1	0.2	50.0	20.2	0.0	0.2	0.1	6	2	1	1	0	1	0	-9
17	Andre Dawkins A. Dawkins	-5.1	22	4	5.5	0.8	0.5	0.3	0.0	0.0	0.3	1.5	16.7	0.3	1.5	16.7	0.0	0.0		25.0	0.0	0.5	0.3	3	2	1	0	0	1	3	-4
18	Luis Montero L. Montero	-4.9	50	14	3.6	1.0	0.4	0.1	0.0	0.0	0.4	1.4	25.0	0.1	0.6	11.1	0.2	0.3	75.0	32.2	0.0	0.4	0.4	14	6	1	0	0	6	1	-44
19	Keith Appling K. Appling	-4.9	27	5	5.4	1.2	0.2	0.2	0.2	0.0	0.4	1.6	25.0	0.0	0.6	0.0	0.4	0.4	100.0	33.8	0.0	0.2	0.6	6	1	1	1	0	3	5	+14
20	James Phelan J. Phelan	-4.8	33	4	8.3	0.8	1.3	0.5			0.0	1.5	0.0				0.8	1.5	50.0	17.4				3	5	2				9
21	Troy Bell T. Bell	-4.5	34	6	5.7	1.8	0.7	0.7	0.2	0.0	0.7	3.0	22.2	0.0	0.7	0.0	0.5	0.5	100.0	28.5	0.5	0.2	1.0	11	4	4	1	0	6	6	+7
22	Kevin Murphy K. Murphy	-4.5	52	17	3.1	0.9	0.2	0.1	0.1	0.0	0.4	1.6	25.0	0.1	0.3	20.0	0.0	0.0		26.8	0.0	0.2	0.2	15	4	2	1	0	3	4	-45
23	James Scott J. Scott	-4.1	32	8	4.0	0.1	0.8	0.4	0.3	0.0	0.0	1.0	0.0	0.0	0.5	0.0	0.1	0.3	50.0	5.6	0.1	0.6	0.3	1	6	3	2	0	2	5	-12
24	Andrew Levane A. Levane	-4.1	68	7	9.7	1.1	1.3	1.3			0.4	3.4	12.5				0.3	0.4	66.7	15.8				8	9	9				15
25	Dennis Boyd D. Boyd	-4	40	5	8.0	1.2	0.4	1.4	0.0	0.0	0.6	2.4	25.0				0.0	0.0		25.0	0.0	0.4	1.2	6	2	7	0	0	6	5