Thanks to its unique atmosphere, the enthusiasm of the spectators and its professional organization, Weltklasse Zürich attracts a world-class field of athletes year after year. The redevelopment of the time-honored Letzigrund stadium in 2007 marked a new chapter in the long history of Weltklasse Zürich. At the same venue where Armin Hary became the first person to run 100 meters in 10 seconds in 1960, the reconstruction will mean that athletes will once again find the ideal conditions for new top sporting achievements. UBS supports this major sporting event since 29 years as its main sponsor.