The 2013 IAUM World Championships were the 24th edition of the International Association for Ultra-Multievents World Championships.
[1] They were held at the Yeovil Olympiads Athletics Club track in Yeovil, Somerset, from 24-25 August 2013.
[2] It was the fourth time that Great Britain had hosted the World Championships.
The event was made up of two different combined events competitions, an icosathlon for men and a tetradecathlon for women.
[2]