IAAF World U18 Championships
Council decided to discontinue the World U18 Championships after the next edition in Nairobi (KEN). The IAAF will work with Area Associations to find a more appropriate competition structure for assisting the career development of U18 age group athletes.
Source:
https://www.iaaf.org/download/download?filename=d6a4b33e-a9cc-467b-9ed6-b7f061af8e10.pdf&urlSlug=competitions-update-20-aug-2016http://www.milesplit.com/articles/187920/iaaf-will-no-longer-contest-world-u18-youth-championshipsThe IAAF will no longer hold a world championship for U-18 athletes, as announced by IAAF president Seb Coe at a press conference in Rio yesterday.
The last edition of the event will be held in Nairobi, Kenya next July 12-17, 2017. This will be the tenth annual and final world championships for youth athletes. The U20 championships will continue.
https://twitter.com/AthleticsWeekly/status/767123824089456640