Hakeem Olajuwon has blocked the most career shots by a player younger than 28, with 1,684 blocks.

Interpreted as:

most block by a player before turning 28 years old

	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	Hakeem Olajuwon H. Olajuwon	1,684	497	36.7	23.3	12.5	2.2	2.0	3.4	9.2	17.9	51.4	0.0	0.1	7.4	4.9	7.1	68.4	55.4	4.3	8.2	3.2	18,232	11,579	6,236	1,096	988	1,587	1,991
2	Dwight Howard D. Howard	1,566	718	36.1	18.2	12.9	1.5	1.0	2.2	6.4	11.2	57.7	0.0	0.1	5.0	5.3	9.3	57.6	59.8	3.6	9.3	3.1	25,892	13,084	9,287	1,080	725	2,221	2,369	+2477
3	Shawn Bradley S. Bradley	1,494	459	28.4	10.6	7.7	0.9	0.7	3.3	4.3	9.8	44.5	0.0	0.1	10.3	1.9	2.8	67.9	48.2	2.6	5.0	1.8	13,025	4,862	3,520	417	332	813	1,606	-193
4	Manute Bol M. Bol	1,491	394	19.9	3.0	4.7	0.3	0.2	3.8	1.2	3.0	41.2	0.1	0.4	20.4	0.5	0.8	56.2	44.6	1.1	3.6	0.7	7,857	1,185	1,852	110	83	290	1,024
5	Josh Smith J. Smith	1,471	695	34.2	15.3	8.0	3.2	1.3	2.1	6.0	12.9	46.3	0.4	1.5	28.2	3.0	4.6	65.2	51.4	2.1	5.9	2.5	23,763	10,643	5,536	2,236	890	1,768	1,965	+62
6	Serge Ibaka S. Ibaka	1,424	603	29.1	12.0	7.3	0.6	0.4	2.4	5.0	9.7	51.6	0.5	1.4	36.9	1.4	1.9	75.7	56.7	2.3	5.0	1.3	17,522	7,227	4,413	384	265	776	1,706	+1796
7	Shaquille O'Neal S. O'Neal	1,396	514	37.6	27.2	12.4	2.6	0.8	2.7	10.9	18.9	57.6	0.0	0.0	5.9	5.4	10.1	53.1	58.1	4.0	8.4	2.9	19,334	13,971	6,372	1,357	394	1,495	1,775	+1668
8	Tim Duncan T. Duncan	1,314	520	38.9	22.8	12.3	3.2	0.8	2.5	8.7	17.1	50.9	0.0	0.2	18.2	5.4	7.7	69.4	55.6	3.3	9.0	3.1	20,253	11,862	6,407	1,660	414	1,603	1,470	+3630
9	Anthony Davis A. Davis	1,305	551	34.4	23.9	10.3	2.3	1.4	2.4	8.9	17.3	51.6	0.5	1.5	31.7	5.6	7.1	79.9	58.8	2.5	7.8	1.9	18,960	13,195	5,676	1,252	761	1,068	1,304	+660
10	Benoit Benjamin B. Benjamin	1,296	506	31.0	13.3	8.6	1.8	0.8	2.6	5.1	10.3	49.7	0.0	0.0	5.6	3.1	4.2	72.3	54.7	2.0	6.6	2.8	15,678	6,739	4,338	899	388	1,396	1,562
11	Myles Turner M. Turner	1,248	560	28.6	13.8	6.8	1.2	0.7	2.2	5.1	10.3	50.1	1.0	2.9	35.1	2.5	3.2	77.2	59.0	1.4	5.4	1.4	16,032	7,734	3,813	688	384	774	1,675	+439
12	Kevin Garnett K. Garnett	1,231	693	38.2	20.0	10.8	4.4	1.4	1.8	8.1	16.6	48.8	0.2	0.7	30.3	3.6	4.7	76.1	53.5	2.8	8.0	2.6	26,462	13,864	7,493	3,059	968	1,780	1,758	+2264
13	Elton Brand E. Brand	1,227	585	38.3	20.3	10.3	2.6	0.9	2.1	7.7	15.3	50.5	0.0	0.0	8.3	4.8	6.5	73.6	55.7	4.0	6.3	2.5	22,389	11,871	6,002	1,531	554	1,471	1,829	-1198
14	Andrei Kirilenko A. Kirilenko	1,213	531	31.3	12.6	5.9	2.9	1.5	2.3	4.1	8.8	47.0	0.5	1.6	30.7	3.9	5.1	76.5	57.3	2.0	4.0	2.1	16,635	6,694	3,147	1,514	775	1,102	1,192	+1293
15	David Robinson D. Robinson	1,208	314	37.8	24.2	12.2	2.7	1.8	3.8	8.6	16.2	53.3	0.0	0.1	14.7	6.9	9.4	73.4	59.4	3.6	8.6	3.0	11,872	7,588	3,831	854	550	950	981
16	Jermaine O'Neal J. O'Neal	1,129	614	27.3	13.8	7.6	1.3	0.5	1.8	5.3	11.4	46.5	0.0	0.1	17.7	3.2	4.6	69.3	51.4	2.1	5.5	1.8	16,768	8,487	4,640	806	303	1,121	1,739	+905
17	Alonzo Mourning A. Mourning	1,122	376	35.6	21.0	10.1	1.5	0.6	3.0	7.3	14.1	52.0	0.1	0.2	26.9	6.3	8.7	72.2	58.5	3.0	7.1	3.3	13,380	7,912	3,790	553	243	1,234	1,379	+601
18	Patrick Ewing P. Ewing	1,103	357	35.2	22.9	9.3	2.0	1.2	3.1	9.0	16.8	53.6	0.0	0.1	4.0	4.8	6.5	74.1	58.1	2.7	6.6	3.4	12,584	8,169	3,315	701	442	1,229	1,407
19	DeAndre Jordan D. Jordan	1,072	592	27.1	8.7	9.6	0.6	0.6	1.8	3.5	5.2	67.0	0.0	0.0	11.1	1.6	3.9	42.1	62.3	3.1	6.6	1.2	16,051	5,122	5,703	344	358	730	1,600	+1386
20	Rudy Gobert R. Gobert	1,019	468	29.5	11.7	11.0	1.4	0.7	2.2	4.3	6.7	64.0	0.0	0.0	0.0	3.1	4.9	62.9	65.8	3.3	7.7	1.6	13,803	5,458	5,125	638	323	761	1,221	+1562
21	Theo Ratliff T. Ratliff	992	390	26.3	8.8	6.0	0.5	0.5	2.5	3.3	6.5	50.8	0.0	0.0	0.0	2.2	3.1	73.1	56.3	2.2	3.9	1.4	10,266	3,446	2,355	207	202	554	1,147	+499
22	Andre Drummond A. Drummond	987	645	30.7	14.5	13.7	1.4	1.4	1.5	6.1	11.4	53.8	0.0	0.2	13.5	2.3	4.8	47.0	53.8	4.7	9.0	2.0	19,830	9,358	8,839	872	898	1,296	2,056	-663
23	Samuel Dalembert S. Dalembert	980	500	26.4	8.1	8.1	0.4	0.5	2.0	3.3	6.3	52.4	0.0	0.0	0.0	1.5	2.2	68.8	55.8	2.6	5.5	1.5	13,215	4,043	4,060	213	250	754	1,592	-83
24	Shawn Kemp S. Kemp	976	636	29.9	16.3	9.6	1.7	1.2	1.5	5.9	11.4	52.0	0.0	0.1	28.6	4.4	6.1	73.0	58.0	3.4	6.1	2.9	18,989	10,362	6,088	1,112	790	1,834	2,424	+509
25	Pau Gasol P. Gasol	919	503	35.4	18.8	8.6	3.1	0.5	1.8	7.0	13.7	51.3	0.0	0.1	22.7	4.8	6.6	73.3	57.0	2.5	6.1	2.5	17,821	9,474	4,307	1,568	261	1,282	1,206	+81