which player leads the league in per requiring at least 15 games played and playing less than 20 minutes a game and is under the age of 24 this season

I don't have anything for this season, but Isaiah Stewart had a PER of 14.7 when playing 15+ games and playing <20.0 minutes per game in 2024-25.

	NAME	PER	GP	MPG	AGE	SEASON	TM	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	Isaiah Stewart I. Stewart	14.7	72	19.9	23	2024-25	DET	6.0	5.5	1.7	0.4	1.4	2.4	4.4	55.9	0.2	0.7	32.1	0.9	1.2	75.9	61.6	1.8	3.7	0.9	1,434	435	399	123	28	101	68	183	+9
2	Day'Ron Sharpe D. Sharpe	19.8	50	18.1	23	2024-25	BKN	7.9	6.6	1.8	0.8	0.8	3.3	6.3	52.1	0.2	0.9	24.4	1.1	1.5	75.7	56.8	3.0	3.6	1.3	907	397	330	91	41	42	63	113	+64
3	JT Thor	10	20	12.5	22	2024-25	TOT	3.6	2.4	0.3	0.4	0.5	1.3	3.0	42.4	0.3	1.1	28.6	0.8	1.1	68.2	51.7	1.0	1.4	0.5	249	71	48	6	8	9	9	17	-96
4	Jaden Springer J. Springer	10.7	43	8.5	22	2024-25	TOT	2.5	1.3	0.8	0.6	0.1	0.8	2.1	38.9	0.3	1.1	25.0	0.6	0.9	71.1	51.1	0.4	1.0	0.4	365	109	58	33	24	4	16	42	-32
5	Dalen Terry D. Terry	9.6	73	13.5	22	2024-25	CHI	4.5	1.7	1.3	0.6	0.2	1.6	3.7	44.8	0.5	1.4	35.6	0.7	0.9	71.0	54.6	0.5	1.2	0.7	987	326	124	97	44	15	53	114	-172
6	Patrick Baldwin Jr. P. Baldwin Jr.	16.3	24	4.5	22	2024-25	TOT	2.2	1.0	0.1	0.1	0.1	0.8	1.5	54.3	0.5	1.0	56.5	0.1	0.2	50.0	72.1	0.2	0.8	0.2	107	53	25	3	3	2	5	7	+29
7	Ryan Rollins R. Rollins	14	56	14.6	22	2024-25	MIL	6.2	1.9	1.9	0.8	0.3	2.4	4.8	48.7	0.9	2.1	40.8	0.6	0.8	80.0	60.0	0.4	1.6	0.9	820	349	108	104	42	17	53	88	+83
8	Gui Santos G. Santos	11.7	56	13.6	22	2024-25	GSW	4.1	3.1	1.4	0.4	0.2	1.5	3.2	45.8	0.6	1.8	33.0	0.5	0.8	69.0	57.5	1.3	1.8	0.8	762	227	172	80	25	10	42	91	+165
9	Johnny Davis J. Davis	10.2	34	7.1	22	2024-25	WAS	2.4	1.1	0.3	0.4	0.2	0.9	2.3	41.0	0.2	0.9	24.1	0.3	0.4	60.0	47.3	0.3	0.8	0.2	242	80	38	11	15	6	7	18	-26
10	Josh Minott J. Minott	15.5	46	6.0	22	2024-25	MIN	2.6	1.0	0.4	0.3	0.3	1.0	2.0	48.9	0.3	0.9	32.6	0.4	0.4	89.5	60.5	0.3	0.8	0.2	276	119	47	18	15	12	11	34	-16
11	Wendell Moore Jr. W. Moore Jr.	11	36	13.9	23	2024-25	TOT	4.2	2.6	1.2	0.6	0.1	1.6	3.5	46.8	0.4	1.1	34.1	0.5	0.6	81.8	55.3	0.8	1.8	0.8	499	150	95	42	20	5	27	31	-134
12	David Roddy D. Roddy	11.9	33	12.4	23	2024-25	TOT	4.6	2.5	1.1	0.4	0.3	1.7	3.8	45.6	0.6	1.8	31.1	0.6	0.8	76.9	56.1	0.4	2.2	0.7	410	153	84	35	14	9	22	20	-76
13	TyTy Washington Jr. T. Washington Jr.	6.4	16	7.4	23	2024-25	PHX	2.2	0.8	1.0	0.2	0.0	0.9	2.8	31.1	0.3	1.3	19.0	0.2	0.4	50.0	36.7	0.3	0.6	0.2	118	35	13	16	3	0	3	4	+2
14	JD Davison	6.4	16	5.8	22	2024-25	BOS	2.1	0.8	0.8	0.3	0.1	0.8	2.1	35.3	0.3	1.1	22.2	0.3	0.4	71.4	44.5	0.1	0.7	0.8	93	33	13	13	5	1	13	2	-28
15	Blake Wesley B. Wesley	9.9	58	11.8	21	2024-25	SAS	3.7	1.1	2.0	0.6	0.1	1.4	3.2	43.5	0.3	1.0	29.3	0.7	1.1	62.3	51.0	0.3	0.8	0.9	683	217	61	114	37	6	54	46	-9
16	Dominick Barlow D. Barlow	14.7	35	10.7	21	2024-25	ATL	4.2	2.4	0.5	0.3	0.5	1.7	3.2	53.1	0.2	0.8	25.9	0.6	0.9	63.6	58.0	1.0	1.4	0.1	375	148	85	19	9	16	5	47	-2
17	Malaki Branham M. Branham	12	47	9.1	21	2024-25	SAS	5.0	1.1	0.8	0.2	0.0	1.9	4.0	45.8	0.7	1.8	40.5	0.6	0.7	81.8	57.5	0.1	0.9	0.7	427	235	51	38	11	2	34	29	-33
18	Moussa Diabaté M. Diabaté	16.6	71	17.5	23	2024-25	CHA	5.7	6.2	0.8	0.6	0.6	2.4	3.9	59.6	0.0	0.1	0.0	1.0	1.6	59.5	60.9	2.6	3.5	0.9	1,241	403	438	56	46	40	61	109	-123
19	Johnny Juzang J. Juzang	11.8	64	19.8	23	2024-25	UTA	8.9	2.9	1.1	0.6	0.1	3.2	7.4	42.9	1.8	4.9	37.6	0.7	0.8	84.9	57.3	0.7	2.2	0.6	1,270	571	184	68	39	8	36	126	-357
20	Jaden Hardy J. Hardy	10.4	57	15.9	22	2024-25	DAL	8.7	1.6	1.4	0.5	0.1	3.2	7.3	43.5	1.3	3.5	38.6	1.1	1.5	69.8	54.9	0.2	1.4	1.4	907	496	89	81	28	5	82	90	-65
21	Jaylin Williams J. Williams	16.5	47	16.7	22	2024-25	OKC	5.9	5.6	2.6	0.5	0.6	2.1	4.7	43.9	1.3	3.3	39.9	0.5	0.6	76.7	59.4	1.0	4.6	0.7	784	278	262	120	22	29	35	79	+302
22	Ousmane Dieng O. Dieng	11.5	37	10.9	21	2024-25	OKC	3.8	2.2	0.8	0.5	0.2	1.5	3.4	43.2	0.6	1.9	32.4	0.3	0.4	68.8	53.8	0.5	1.7	0.5	405	142	81	31	17	7	18	33	+45
23	Jabari Walker J. Walker	15	60	12.5	22	2024-25	POR	5.2	3.5	0.6	0.6	0.1	2.0	3.8	51.5	0.5	1.2	38.9	0.8	1.2	69.0	60.1	1.0	2.5	0.6	749	313	211	37	33	6	34	87	+15
24	Caleb Houstan C. Houstan	9.4	58	13.6	22	2024-25	ORL	4.1	1.3	0.6	0.4	0.1	1.4	3.3	42.1	1.1	2.8	40.0	0.3	0.3	88.2	60.5	0.3	1.0	0.2	788	239	75	35	22	6	13	62	-66
25	Cam Whitmore C. Whitmore	15.5	51	16.2	20	2024-25	HOU	9.4	3.0	1.0	0.6	0.3	3.5	7.9	44.4	1.3	3.6	35.5	1.1	1.4	75.0	54.9	0.7	2.3	0.9	827	477	151	49	31	13	46	44	-1