Kobe Bryant has the most career games by a player younger than 23 in the playoffs, with 66 games.

Interpreted as:

most playoff games by a player under the age of 23

	NAME	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	Kobe Bryant K. Bryant	66	33.6	19.2	4.6	3.9	1.2	1.0	6.9	15.5	44.4	0.8	2.4	31.6	4.6	5.9	78.6	52.9	1.2	3.4	2.5	2,219	1,264	301	258	78	64	162	217	+228
2	Kawhi Leonard K. Leonard	58	32.6	12.6	7.4	1.2	1.6	0.5	4.9	9.3	52.2	1.2	3.0	41.6	1.7	2.4	70.8	61.1	1.7	5.7	1.1	1,890	733	428	68	93	31	65	129	+336
3	Tony Parker T. Parker	53	35.2	16.3	2.7	4.6	1.0	0.1	6.3	14.8	42.8	0.8	2.7	31.7	2.8	3.9	70.5	49.3	0.4	2.3	2.4	1,867	863	143	245	53	5	125	113	+160
4	Andrew Bynum A. Bynum	52	19.6	7.0	5.2	0.4	0.3	1.1	2.8	5.6	50.0	0.0	0.0		1.3	2.1	64.2	53.2	1.9	3.2	0.8	1,018	362	268	22	14	59	42	145	0
5	Jordan Farmar J. Farmar	46	16.0	5.3	1.6	1.5	0.5	0.2	2.0	5.0	39.1	0.7	2.0	33.3	0.7	0.9	81.0	49.3	0.3	1.3	0.9	735	245	75	68	22	8	40	52	-85
6	Jayson Tatum J. Tatum	45	37.1	20.6	7.0	3.4	1.1	0.8	7.0	15.7	44.8	1.8	5.1	35.1	4.7	5.8	81.5	56.3	0.9	6.1	2.4	1,668	925	313	154	50	37	107	112	+136
7	Jaylen Brown J. Brown	44	24.3	12.1	4.0	1.1	0.6	0.3	4.6	9.6	47.6	1.4	4.0	36.0	1.5	2.2	68.4	57.2	0.8	3.2	1.2	1,071	534	175	49	26	14	52	114	-45
8	James Harden J. Harden	43	29.9	13.8	4.8	3.3	1.3	0.4	4.0	8.9	44.5	1.4	4.0	35.9	4.4	5.2	84.4	61.4	0.6	4.3	1.7	1,287	593	208	140	58	16	73	129	+214
9	Serge Ibaka S. Ibaka	43	28.2	9.5	6.5	0.4	0.4	2.9	4.0	7.9	50.4	0.0	0.1	20.0	1.5	2.0	76.7	54.3	2.5	4.0	0.9	1,212	409	278	17	17	123	38	140	+42
10	Tyler Herro T. Herro	40	29.5	14.0	4.5	3.2	0.5	0.2	5.2	12.4	41.5	1.8	5.4	32.3	2.0	2.2	89.8	52.5	0.4	4.1	1.8	1,180	561	178	126	18	9	72	54	-84
11	Richard Jefferson R. Jefferson	40	28.8	10.5	5.5	1.8	0.7	0.3	4.1	8.6	47.2	0.0	0.1	0.0	2.4	3.6	64.8	51.4	1.1	4.4	1.8	1,152	420	219	72	27	13	72	107	+95
12	Moses Moody M. Moody	37	12.4	5.3	1.8	0.7	0.4	0.3	1.8	4.1	43.7	0.9	2.2	43.8	0.8	0.9	82.9	58.9	0.5	1.3	0.2	459	196	65	26	14	10	9	37	-54
13	Cory Joseph C. Joseph	37	7.6	2.9	1.1	0.9	0.2	0.1	1.2	2.5	47.3	0.1	0.4	14.3	0.5	0.8	65.5	51.6	0.2	0.8	0.4	279	107	40	33	9	2	14	22	+69
14	Darryl Dawkins D. Dawkins	37	20.7	9.1	6.4	1.1			3.6	6.9	52.4				1.9	3.0	64.9	55.8			1.6	766	338	237	39			31	122
15	Steven Adams S. Adams	36	24.6	7.0	6.8	0.5	0.3	1.1	2.8	4.3	63.5	0.0	0.0	0.0	1.5	2.7	56.3	63.6	2.3	4.5	0.8	884	252	245	17	10	38	27	103	+17
16	Tyrese Maxey T. Maxey	35	30.4	15.7	3.3	2.5	0.8	0.4	5.7	12.6	45.2	1.8	4.7	38.6	2.5	2.9	86.4	56.8	0.5	2.9	1.0	1,065	551	117	88	27	13	34	66	+15
17	Jonathan Kuminga J. Kuminga	34	11.4	7.0	1.6	0.7	0.3	0.2	2.6	5.2	49.7	0.5	1.3	35.6	1.4	1.9	71.2	58.0	0.4	1.2	0.8	386	239	56	23	9	6	28	29	-107
18	Harrison Barnes H. Barnes	34	32.4	12.3	5.3	1.5	0.6	0.5	4.7	10.6	44.6	1.2	3.4	35.3	1.7	2.2	75.0	53.3	1.5	3.8	1.1	1,100	418	180	50	20	16	39	74	+114
19	Cason Wallace C. Wallace	33	21.6	5.2	2.2	1.8	1.2	0.4	2.0	4.8	41.9	0.9	2.7	32.2	0.2	0.3	63.6	51.6	0.9	1.3	0.6	714	170	74	58	41	12	20	65	+162
20	Clint Capela C. Capela	33	13.8	5.5	4.8	0.6	0.4	1.2	2.1	3.7	57.4	0.0	0.0	0.0	1.2	2.2	56.2	58.7	1.4	3.4	0.4	457	181	158	19	14	39	14	52	-76
21	LeBron James L. James	33	45.4	27.3	8.1	7.1	1.6	0.6	9.5	21.4	44.2	1.3	4.2	30.4	7.1	9.5	74.8	53.4	1.5	6.6	4.0	1,497	901	266	235	52	19	131	84	+22
22	Magic Johnson M. Johnson	33	40.8	17.8	11.1	9.2	2.9	0.4	6.2	12.3	50.6	0.1	0.4	16.7	5.3	6.6	79.9	58.5			3.6	1,347	587	367	302	97	12	120	111
23	Daniel Gibson D. Gibson	31	22.2	8.5	1.6	1.5	0.6	0.2	2.7	6.3	43.8	1.5	3.5	42.6	1.5	1.8	84.2	60.3	0.4	1.2	0.8	687	264	51	48	19	6	24	52	+115
24	Peyton Watson P. Watson	29	10.4	3.0	2.1	0.3	0.4	0.6	1.1	3.0	36.4	0.4	1.1	33.3	0.4	0.8	50.0	44.0	0.6	1.5	0.4	303	86	60	9	11	16	12	32	-150
25	Onyeka Okongwu O. Okongwu	29	14.0	3.8	3.9	0.4	0.4	0.9	1.4	2.5	56.9	0.0	0.1	50.0	0.9	1.4	65.9	61.1	1.8	2.1	0.5	405	110	113	11	11	25	15	65	-39