http://www.iaaf.org/competitions/iaaf-world-championships/14th-iaaf-world-championships-4873/results/men/javelin-throw/qualification/summary#resultheaderResults from Javelin Throw Qualification - Men
Qualifying performance 82.50 (Q) or at least 12 best performers (q)
POS Rank Heat BIB ATHLETE COUNTRY RESULTS 1 1 A 440 Tero Pitkämäki FIN 84.39 Q
2 1 B 359 Ihab Abdelrahman El Sayed EGY 83.62 Q NR
3 2 A 839 Andreas Thorkildsen NOR 83.05 Q
4 3 A 1189 Ivan Zaytsev UZB 81.53 q
5 4 A 340 Vítezslav Veselý CZE 81.51 q
6 2 B 441 Antti Ruuskanen FIN 81.36 q
7 3 B 974 Dmitri Tarabin RUS 81.32 q
8 5 A 725 Julius Yego KEN 80.88 q
9 6 A 1020 Kim Amb SWE 80.84 q
10 7 A 841 Stuart Farquhar NZL 80.73 q
11 4 B 1085 Roman Avramenko UKR 80.37 q
12 5 B 408 Risto Mätas EST 80.18 q 13 6 B 1071 Fatih Avan TUR 80.09
14 8 A 545 Bernhard Seifert GER 80.02
15 7 B 758 Vadims Vasilevskis LAT 79.68
16 9 A 320 Guillermo Martínez CUB 79.67
17 8 B 442 Teemu Wirkkala FIN 79.50
18 9 B 850 Víctor Fatecha PAR 79.03 PB
19 10 A 1064 Keshorn Walcott TRI 78.78 20 10 B 1121 Riley Dolezal USA 78.76
21 11 A 975 Aleksey Tovarnov RUS 78.43
22 11 B 678 Yukifumi Murakami JPN 77.75
23 12 B 293 Qinggang Zhao CHN 77.61
24 13 B 531 Lars Hamann GER 77.10
25 12 A 861 Marcin Krukowski POL 76.93
26 13 A 938 Valeriy Iordan RUS 76.92
27 14 A 139 Hamish Peacock AUS 76.33
28 14 B 859 Lukasz Grzeszczuk POL 74.72
29 15 B 1033 Gabriel Wallin SWE 74.66
30 15 A 540 Thomas Röhler GER 74.45
31 16 B 921 John Robert Oosthuizen RSA 74.36
32 16 A 191 Uladzimir Kazlou BLR 72.66
33 17 B 433 Leslie Copeland FIJ 72.30
>>>>>>>>>>>>>>>>>>>>>>
Unfortunately Keshorn Walcott's throw of 78.78 was not the automatic qualifying distance nor was it good enough to place him in the top 12.
Maybe Keshorn has not yet recovered fully from his ankle injury but hopefully he can throw more consistently for the rest of this season and next season sparing any major injuries.