IAAF Warld Championships in Athletics
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|No. o teams||200 (2007), 202 (2009), 204 (2011)|
|Last winners leets|
SBS Two (Australie)|
NBC Universal (Unitit States)
The Warld Championships in Athletics is an event organized bi the Internaitional Association o Athletics Federations (IAAF). Oreeginally, it wis organised every fower years, but this chynged in 1991, an it haes syne been organised biennially.