 Rüegg's best finish in the FIBT World Championships was sixth in the four-man event at Calgary in 2005.In addition he won a bronze medal at the 2003 Bobsleigh European Championship in the two-man event, with Beat Hefti as his brakeman.He is the son of Tony Rüegg, nephew of Max Rüegg and cousin of Reto and Ivo Rüegg, all of whom competed as bobsledders.