Decathlon

Decathlon is a combined event in athletics consisting of ten track and field events, competed by male athletes at the IAAF World Championships.

The first World Champion was Great Britain's Daley Thompson in 1983, then in 1987, Torsten Voss.

The record for Decathlon titles is held jointly by Dan O'Brien and Tomáš Dvořák who have three titles apiece.

Its female equivalent is heptathlon.

Champions

 * 1983: Daley Thompson
 * 1987: Torsten Voss
 * 1991: Dan O'Brien
 * 1993: Dan O'Brien
 * 1995: Dan O'Brien
 * 1997: Tomáš Dvořák
 * 1999: Tomáš Dvořák
 * 2001: Tomáš Dvořák
 * 2003: Tom Pappas
 * 2005: Bryan Clay
 * 2007: Roman Šebrle
 * 2009: Trey Hardee
 * 2011: Trey Hardee
 * 2013: Ashton Eaton
 * 2015: Ashton Eaton