Rick Mahorn and Herb Williams were tied for the oldest in 1998-99. They were 40 years old.

	NAME	AGE	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	Rick Mahorn R. Mahorn	40	1998-99	PHI	16	7.9	0.8	1.4	0.1	0.3	0.1	0.3	1.1	27.8	0.0	0.0		0.2	0.5	37.5	30.2	0.4	1.0	0.4	127	13	23	2	5	1	6	22	-34
2	Herb Williams H. Williams	40	1998-99	NYK	6	5.7	1.7	1.0	0.0	0.0	0.3	0.7	1.3	50.0	0.0	0.0		0.3	0.3	100.0	56.3	0.5	0.5	0.3	34	10	6	0	0	2	2	2	0
3	Eddie Johnson E. Johnson	39	1998-99	HOU	3	6.0	4.0	0.7	0.3	0.0	0.0	2.0	4.3	46.2	0.0	0.3	0.0	0.0	0.0		46.2	0.0	0.7	0.7	18	12	2	1	0	0	2	3	-8
4	Danny Schayes D. Schayes	39	1998-99	ORL	19	7.5	1.5	0.7	0.2	0.1	0.1	0.6	1.5	37.9	0.0	0.0		0.3	0.4	75.0	43.1	0.2	0.6	0.4	143	28	14	4	1	2	8	23	+23
5	Dominique Wilkins D. Wilkins	39	1998-99	ORL	27	9.3	5.0	2.6	0.6	0.1	0.0	1.9	4.9	37.9	0.2	0.7	26.3	1.1	1.6	69.0	44.5	1.1	1.5	0.9	252	134	71	16	4	1	23	19	+10
6	Dale Ellis D. Ellis	38	1998-99	SEA	48	25.7	10.3	2.4	0.8	0.5	0.1	3.6	8.2	44.1	2.0	4.5	43.3	1.1	1.5	75.7	58.1	0.5	1.9	0.9	1,232	495	115	38	25	3	45	77	+25
7	Mark West M. West	38	1998-99	ATL	49	10.2	1.2	2.6	0.3	0.1	0.4	0.4	1.2	37.3	0.0	0.0		0.3	0.9	35.6	38.1	1.0	1.6	0.3	499	60	125	13	4	22	17	81	-64
8	Thurl Bailey T. Bailey	37	1998-99	UTA	43	12.6	4.2	2.2	0.6	0.2	0.7	1.8	4.1	44.6	0.0	0.0	0.0	0.6	0.8	73.5	47.6	0.8	1.3	0.6	543	181	94	26	9	28	27	78	+20
9	Antoine Carr A. Carr	37	1998-99	HOU	18	8.4	2.6	1.7	0.5	0.1	0.6	1.2	2.9	40.4	0.0	0.1	0.0	0.3	0.4	71.4	42.7	0.5	1.2	0.5	152	47	31	9	1	10	9	31	-11
10	Terry Cummings T. Cummings	37	1998-99	GSW	50	20.2	9.1	5.1	1.2	0.9	0.2	3.7	8.5	43.9	0.0	0.0	100.0	1.6	2.3	71.1	47.9	1.9	3.2	1.2	1,011	454	255	58	46	10	58	168	-12
11	Derek Harper D. Harper	37	1998-99	LAL	45	24.9	6.9	1.5	4.2	1.0	0.1	2.7	6.5	41.2	1.0	2.6	36.8	0.6	0.7	81.3	50.6	0.3	1.2	1.2	1,120	309	67	187	44	4	52	66	-75
12	Joe Kleine J. Kleine	37	1998-99	PHX	31	12.1	2.2	2.2	0.4	0.3	0.0	1.0	2.4	40.5	0.0	0.1	0.0	0.3	0.4	66.7	42.9	0.9	1.3	0.3	374	68	67	12	8	1	10	46	-62
13	Sam Perkins S. Perkins	37	1998-99	IND	48	16.4	5.0	2.9	0.5	0.3	0.3	1.7	4.2	40.0	0.7	1.9	38.9	0.9	1.3	71.7	52.6	0.8	2.1	0.5	789	238	138	25	15	14	22	74	+21
14	Dennis Rodman D. Rodman	37	1998-99	LAL	23	28.6	2.1	11.2	1.3	0.4	0.5	0.7	2.0	34.8	0.0	0.1	0.0	0.7	1.7	43.6	38.8	2.7	8.5	1.3	657	49	258	30	10	12	31	71	-15
15	Tyrone Corbin T. Corbin	36	1998-99	ATL	47	22.7	7.5	3.1	0.9	0.7	0.1	2.8	7.1	39.1	0.8	2.5	31.9	1.1	1.7	65.0	47.5	0.8	2.3	0.9	1,066	352	145	43	31	7	43	74	+89
16	Patrick Ewing P. Ewing	36	1998-99	NYK	38	34.2	17.3	9.9	1.1	0.8	2.6	6.5	14.9	43.5	0.0	0.1	0.0	4.3	6.1	70.6	49.1	1.9	8.0	2.6	1,300	657	377	43	30	100	99	105	+47
17	Jerome Kersey J. Kersey	36	1998-99	SAS	45	15.5	3.2	2.9	0.9	0.8	0.3	1.5	4.4	34.0	0.1	0.3	21.4	0.1	0.3	42.9	35.2	0.9	2.0	0.7	699	145	130	41	37	14	30	92	+96
18	Hakeem Olajuwon H. Olajuwon	36	1998-99	HOU	50	35.7	18.9	9.6	1.8	1.6	2.5	7.5	14.5	51.4	0.1	0.3	30.8	3.9	5.4	71.7	55.9	2.1	7.4	2.8	1,784	945	478	88	82	123	139	160	+61
19	Detlef Schrempf D. Schrempf	36	1998-99	SEA	50	35.3	15.0	7.4	3.7	0.8	0.5	5.2	11.0	47.2	0.7	1.7	39.5	4.0	4.9	82.3	57.3	1.5	5.9	2.1	1,765	752	370	184	41	26	103	152	+88
20	John Stockton J. Stockton	36	1998-99	UTA	50	28.2	11.1	2.9	7.5	1.6	0.3	4.0	8.2	48.8	0.3	1.0	32.0	2.7	3.4	81.1	57.1	0.6	2.3	2.2	1,410	553	146	374	81	13	110	107	+304
21	Otis Thorpe O. Thorpe	36	1998-99	WAS	49	31.4	11.3	6.8	2.1	0.9	0.4	4.9	9.0	54.5	0.0	0.0	0.0	1.5	2.2	69.8	56.9	2.0	4.9	1.8	1,539	554	334	101	42	19	88	196	-95
22	Hot Rod Williams H. Rod Williams	36	1998-99	DAL	25	16.1	1.2	3.3	0.6	0.5	0.7	0.4	1.3	33.3	0.0	0.0		0.3	0.4	70.0	38.8	1.4	1.9	0.5	403	29	83	15	13	18	13	49	-89
23	Kevin Willis K. Willis	36	1998-99	TOR	42	29.0	12.0	8.3	1.6	0.7	0.7	4.5	10.6	41.8	0.0	0.0	0.0	3.1	3.7	83.9	48.9	2.6	5.7	2.0	1,216	504	350	67	28	28	86	134	-75
24	Charles Barkley C. Barkley	35	1998-99	HOU	42	36.3	16.1	12.3	4.6	1.0	0.3	5.7	12.0	47.8	0.1	0.6	16.0	4.6	6.4	71.9	54.6	4.0	8.3	2.4	1,526	676	516	192	43	13	100	89	+135
25	Joe Dumars J. Dumars	35	1998-99	DET	38	29.4	11.3	1.8	3.5	0.6	0.1	3.8	9.2	41.1	2.3	5.8	40.3	1.3	1.6	83.6	56.8	0.3	1.5	1.4	1,116	428	68	134	23	2	53	51	+99