First Global Series for Combined Events. Before 1998, combined events athletes mainly competed in isolated major championships (Olympics, World Championships, European Championships, etc. ) or at individual meetings. The Challenge created a
After its debut year, the 1999 Challenge showed that the concept of a season-long ranking system for combined events was sustainable, gaining credibility among athletes and organizers.
By its fourth year, the Challenge had begun to establish itself as an important platform not just for stars, but also for rising athletes to measure themselves across multiple competitions, creating more depth in decathlon and heptathlon.
Integration with the Olympics. Performances from the Sydney Games counted toward the Challenge. This linked the sport’s most prestigious event directly with the series, boosting its legitimacy and visibility.