most blocks before turning 20 by powerforward

Josh Smith has blocked the most career shots by a player younger than 20, with 176 blocks.

Interpreted as:

most blocks by a player before turning 20 years old by powerforward

	NAME	BLK	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	TOV	PF	+/-
1	Josh Smith J. Smith	176	90	27.2	9.5	5.9	1.6	0.8	2.0	3.6	8.2	44.1	0.0	0.3	14.8	2.2	3.2	69.8	49.5	1.9	4.0	1.8	2,447	851	531	143	71	164	198	-466
2	Dwight Howard D. Howard	163	100	33.3	12.4	10.6	1.0	0.9	1.6	4.5	8.8	51.1	0.0	0.0	0.0	3.5	5.3	65.2	55.9	3.5	7.1	2.0	3,327	1,243	1,061	100	94	203	297	-216
3	Andrew Bynum A. Bynum	150	128	16.7	5.6	4.4	0.8	0.1	1.2	2.2	4.1	53.3	0.0	0.0	0.0	1.2	1.9	62.7	56.3	1.4	3.1	1.0	2,132	711	564	103	16	132	305	-159
4	Eddie Griffin E. Griffin	134	73	26.0	8.8	5.7	0.7	0.2	1.8	3.3	9.1	36.6	1.2	3.7	33.0	0.9	1.2	74.4	45.6	1.6	4.1	0.6	1,896	642	416	53	17	47	117	-161
5	Kevin Garnett K. Garnett	131	80	28.7	10.4	6.3	1.8	1.1	1.6	4.5	9.2	49.1	0.1	0.4	28.6	1.3	1.9	70.5	52.2	2.2	4.1	1.4	2,293	835	501	145	86	110	189
6	Tracy McGrady T. McGrady	127	113	20.2	8.0	4.8	1.9	0.9	1.1	3.1	6.9	44.3	0.2	0.7	28.9	1.7	2.4	72.0	50.4	2.0	2.8	1.3	2,285	909	547	211	101	146	180	-258
7	Darius Miles D. Miles	125	81	26.3	9.4	5.9	1.2	0.6	1.5	3.9	7.8	50.5	0.0	0.2	5.3	1.5	2.9	52.1	51.8	1.6	4.3	1.8	2,133	761	477	99	51	147	191	+30
8	Bismack Biyombo B. Biyombo	115	63	23.1	5.2	5.8	0.4	0.3	1.8	2.0	4.4	46.4	0.0	0.0		1.1	2.3	48.3	48.0	1.8	4.0	1.1	1,455	327	368	27	20	71	145	-462
9	Alex Sarr A. Sarr	101	67	27.1	13.0	6.5	2.4	0.7	1.5	4.9	12.4	39.4	1.6	5.1	30.8	1.7	2.5	67.9	48.2	1.9	4.6	1.7	1,814	869	435	161	44	114	146	-547
10	Andre Drummond A. Drummond	95	60	20.7	7.9	7.6	0.5	1.0	1.6	3.5	5.7	60.8	0.0	0.0	50.0	1.0	2.7	37.1	57.8	2.8	4.8	1.0	1,243	476	457	30	59	57	144	-51
11	Tyson Chandler T. Chandler	93	71	19.6	6.1	4.8	0.8	0.4	1.3	2.1	4.3	49.7	0.0	0.0		1.9	3.1	60.4	54.3	1.6	3.2	1.4	1,389	436	343	54	28	99	179	-212
12	Victor Wembanyama V. Wembanyama	91	29	29.4	18.9	10.2	2.9	1.2	3.1	7.0	15.8	44.4	1.4	4.9	29.4	3.4	4.3	78.4	53.3	2.1	8.0	3.2	853	548	295	84	35	92	64	-188
13	Jarrett Allen J. Allen	88	72	20.0	8.2	5.4	0.7	0.4	1.2	3.3	5.5	58.9	0.1	0.2	33.3	1.6	2.0	77.6	63.6	2.0	3.4	1.1	1,441	587	388	49	28	82	147	-145
14	Anthony Davis A. Davis	87	49	28.0	12.9	7.8	0.9	1.1	1.8	5.2	10.3	50.8	0.0	0.1	0.0	2.4	3.3	72.5	54.6	2.4	5.4	1.4	1,372	630	384	45	54	69	112	-108
15	Isaiah Stewart I. Stewart	86	68	21.4	7.9	6.7	0.9	0.6	1.3	3.3	6.0	55.3	0.3	0.9	33.3	0.9	1.4	69.6	59.7	2.3	4.3	1.0	1,455	537	453	59	39	67	184	-60
16	Chris Bosh C. Bosh	86	63	32.9	11.2	7.3	1.0	0.7	1.4	4.2	9.3	45.7	0.0	0.1	37.5	2.7	3.9	68.4	50.9	2.6	4.7	1.4	2,074	704	461	65	46	86	176	-139
17	Jermaine O'Neal J. O'Neal	84	105	12.1	4.3	3.1	0.2	0.2	0.8	1.7	3.7	47.1	0.0	0.0	0.0	0.9	1.6	55.1	49.6	1.1	2.0	0.8	1,266	454	325	25	17	82	147	+40
18	LeBron James L. James	83	108	39.9	21.9	5.9	6.2	1.9	0.8	8.2	18.8	43.5	0.8	2.7	30.8	4.6	6.1	75.6	50.8	1.3	4.6	3.4	4,307	2,362	634	673	202	367	202	-11
19	Jaren Jackson Jr. J. Jackson Jr.	82	58	26.1	13.8	4.7	1.1	0.9	1.4	5.1	10.2	50.6	0.9	2.4	35.9	2.6	3.4	76.6	59.1	1.3	3.4	1.7	1,515	798	272	64	52	98	220	-103
20	Kevin Durant K. Durant	75	80	34.6	20.3	4.4	2.4	1.0	0.9	7.3	17.1	43.0	0.7	2.6	28.8	4.9	5.6	87.3	51.9	0.9	3.5	2.9	2,768	1,624	348	192	78	232	122	-651
21	Jabari Smith Jr. J. Smith Jr.	74	79	31.0	12.8	7.2	1.3	0.5	0.9	4.6	11.3	40.8	1.5	4.9	30.7	2.1	2.6	78.6	51.4	1.5	5.7	1.3	2,450	1,010	569	101	43	104	227	-555
22	Anthony Randolph A. Randolph	74	63	17.9	7.9	5.8	0.8	0.7	1.2	3.2	6.8	46.2	0.0	0.1	0.0	1.6	2.2	71.6	50.6	2.0	3.7	1.3	1,129	499	363	49	42	80	141	-94
23	Giannis Antetokounmpo G. Antetokounmpo	73	98	25.1	7.9	4.7	2.0	0.7	0.7	2.7	6.2	43.3	0.4	1.3	32.8	2.0	2.9	69.6	52.3	1.1	3.7	1.6	2,460	770	463	194	73	156	225	-183
24	Marquese Chriss M. Chriss	70	82	21.3	9.2	4.2	0.7	0.8	0.9	3.5	7.7	44.9	0.9	2.7	32.1	1.4	2.2	62.4	52.9	1.2	3.1	1.3	1,743	753	348	60	67	108	263	-380
25	Myles Turner M. Turner	70	48	22.8	10.5	5.3	0.5	0.4	1.5	4.5	8.9	50.2	0.1	0.3	21.4	1.5	2.1	70.6	53.4	1.2	4.1	1.0	1,096	505	253	26	18	46	125	-51