The World Athletics U20 Championships is a biennial world championships for the sport of athletics organised by the World Athletics, contested by athletes in the under-20 athletics age category (19 years old or younger on 31 December in the year of the competition.[1][2]
The competition was launched as the IAAF World Junior Championships in Athletics in 1986 and renamed to IAAF World U20 Championships in November 2015. The current name was adapted with the name change of the sports governing body in 2019.
Anneisha McLaughlin-Whilby is the most successful athlete at the championships, having won one gold and four silver in individual and relay sprinting events between 2000 and 2004. Chris Nelloms, Davidson Ezinwa and Dexter Lee share the position of most successful male athlete, at four medals each.[3]
WJC14
was invoked but never defined (see the help page).