Isiah Thomas had the most turnovers in 1989-90 with 322 turnovers.

Interpreted as:

most turnovers by a player NBA 89-90 season

	NAME	TOV	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	PF
1	Isiah Thomas I. Thomas	322	1989-90	DET	81	37.0	18.4	3.8	9.4	1.7	0.2	7.1	16.3	43.8	0.5	1.7	30.9	3.6	4.7	77.5	50.1	0.9	2.9	4.0	2,993	1,492	308	765	139	19	206
2	Hakeem Olajuwon H. Olajuwon	316	1989-90	HOU	82	38.1	24.3	14.0	2.9	2.1	4.6	9.8	19.6	50.1	0.0	0.1	16.7	4.7	6.5	71.3	54.1	3.6	10.4	3.9	3,124	1,995	1,149	234	174	376	314
3	Karl Malone K. Malone	304	1989-90	UTA	82	38.1	31.0	11.1	2.8	1.5	0.6	11.1	19.8	56.2	0.2	0.5	37.2	8.5	11.1	76.2	62.6	2.8	8.3	3.7	3,122	2,540	911	226	121	50	259
4	Magic Johnson M. Johnson	289	1989-90	LAL	79	37.2	22.3	6.6	11.5	1.7	0.4	6.9	14.4	48.0	1.3	3.5	38.4	7.2	8.1	89.0	62.2	1.6	5.0	3.7	2,937	1,765	522	907	132	34	167
5	Patrick Ewing P. Ewing	278	1989-90	NYK	82	38.6	28.6	10.9	2.2	1.0	4.0	11.2	20.4	55.1	0.0	0.0	25.0	6.1	7.9	77.5	59.9	2.9	8.0	3.4	3,165	2,347	893	182	78	327	325
6	Scottie Pippen S. Pippen	278	1989-90	CHI	82	38.4	16.5	6.7	5.4	2.6	1.2	6.9	14.0	48.9	0.3	1.4	25.0	2.4	3.6	67.5	52.8	1.8	4.8	3.4	3,148	1,351	547	444	211	101	298
7	John Stockton J. Stockton	272	1989-90	UTA	78	37.4	17.2	2.6	14.5	2.7	0.2	6.1	11.8	51.4	0.6	1.4	41.6	4.5	5.5	81.9	60.7	0.7	1.9	3.5	2,915	1,345	206	1,134	207	18	233
8	Kevin Johnson K. Johnson	263	1989-90	PHX	74	37.6	22.5	3.6	11.4	1.3	0.2	7.8	15.7	49.9	0.1	0.6	19.5	6.8	8.1	83.8	58.5	0.6	3.1	3.6	2,782	1,665	270	846	95	14	143
9	Tim Hardaway T. Hardaway	260	1989-90	GSW	79	33.7	14.7	3.9	8.7	2.1	0.2	5.9	12.5	47.1	0.3	1.1	27.4	2.7	3.5	76.4	52.5	0.7	3.2	3.3	2,663	1,162	310	689	165	12	232
10	David Robinson D. Robinson	257	1989-90	SAS	82	36.6	24.3	12.0	2.0	1.7	3.9	8.4	15.9	53.1	0.0	0.0	0.0	7.5	10.2	73.2	59.7	3.7	8.3	3.1	3,002	1,993	983	164	138	319	259
11	Tony Campbell T. Campbell	251	1989-90	MIN	82	38.6	23.2	5.5	2.6	1.4	0.4	8.8	19.3	45.7	0.1	0.7	16.7	5.5	6.9	78.7	52.0	2.5	3.0	3.1	3,164	1,903	451	213	111	31	260
12	Bernard King B. King	248	1989-90	WAS	82	32.8	22.4	4.9	4.6	0.6	0.1	8.7	17.8	48.7	0.0	0.3	13.0	5.0	6.3	80.3	54.5	1.6	3.4	3.0	2,687	1,837	404	376	51	7	230
13	Michael Jordan M. Jordan	247	1989-90	CHI	82	39.0	33.6	6.9	6.3	2.8	0.7	12.6	24.0	52.6	1.1	3.0	37.6	7.2	8.5	84.8	60.6	1.7	5.1	3.0	3,197	2,753	565	519	227	54	241
14	Sherman Douglas S. Douglas	246	1989-90	MIA	81	30.5	14.3	2.5	7.6	1.8	0.1	5.7	11.6	49.4	0.1	0.4	16.1	2.8	4.0	68.7	53.4	0.9	1.7	3.0	2,470	1,155	206	619	145	10	187
15	Terry Porter T. Porter	245	1989-90	POR	80	34.8	17.6	3.4	9.1	1.9	0.1	5.6	12.1	46.2	1.1	3.0	37.4	5.3	5.9	89.2	59.7	0.7	2.7	3.1	2,781	1,406	272	726	151	4	150
16	Charles Barkley C. Barkley	243	1989-90	PHI	79	39.1	25.2	11.5	3.9	1.9	0.6	8.9	14.9	60.0	0.3	1.2	21.7	7.1	9.4	74.9	66.1	4.6	6.9	3.1	3,085	1,989	909	307	148	50	250
17	Larry Bird L. Bird	243	1989-90	BOS	75	39.3	24.3	9.5	7.5	1.4	0.8	9.6	20.2	47.3	0.9	2.6	33.3	4.3	4.6	93.0	54.6	1.2	8.3	3.2	2,944	1,820	712	562	106	61	173
18	Chris Mullin C. Mullin	239	1989-90	GSW	78	36.3	25.1	5.9	4.1	1.6	0.6	8.7	16.3	53.6	1.1	3.0	37.2	6.5	7.3	88.9	64.3	1.7	4.3	3.1	2,830	1,956	463	319	123	45	142
19	Rony Seikaly R. Seikaly	236	1989-90	MIA	74	32.6	16.6	10.4	1.1	1.1	1.7	6.6	13.1	50.2	0.0	0.0	0.0	3.5	5.8	59.4	53.0	3.4	6.9	3.2	2,409	1,228	766	78	78	124	258
20	Moses Malone M. Malone	232	1989-90	ATL	81	33.8	18.9	10.0	1.6	0.6	1.0	6.4	13.3	48.0	0.0	0.1	11.1	6.1	7.8	78.1	56.4	4.5	5.5	2.9	2,735	1,528	812	130	47	84	158
21	Otis Thorpe O. Thorpe	229	1989-90	HOU	82	35.9	17.1	9.0	3.2	0.8	0.3	6.7	12.2	54.8	0.0	0.1	0.0	3.7	5.4	68.8	58.7	3.1	5.8	2.8	2,947	1,401	734	261	66	24	270
22	Reggie Theus R. Theus	226	1989-90	ORL	76	30.9	18.9	2.9	5.4	0.8	0.2	6.8	15.5	43.9	0.3	1.4	24.8	5.0	5.8	85.3	52.4	1.0	1.9	3.0	2,350	1,438	221	407	60	12	194
23	Reggie Miller R. Miller	222	1989-90	IND	82	38.9	24.6	3.6	3.8	1.3	0.2	8.1	15.7	51.4	1.8	4.4	41.4	6.6	7.6	86.8	64.5	1.2	2.4	2.7	3,192	2,016	295	311	110	18	175
24	Tom Chambers T. Chambers	218	1989-90	PHX	81	37.6	27.2	7.0	2.3	1.1	0.6	10.0	20.0	50.1	0.3	1.1	27.9	6.9	8.0	86.1	57.9	1.5	5.6	2.7	3,046	2,201	571	190	88	47	260
25	Alvin Robertson A. Robertson	217	1989-90	MIL	81	32.1	14.2	6.9	5.5	2.6	0.2	5.9	11.7	50.3	0.0	0.3	15.4	2.4	3.3	74.1	54.2	2.8	4.1	2.7	2,599	1,153	559	445	207	17	280