Leonz Eder started his career as a teacher at Primary School in Zug and later at St. Gallen University as the Head of Sports department. In his young years he was active as an athlete of regional level in Artistic Gymnastics, Handball and Volleyball. Leonz entered the sports movement first as a National Coach in Athletics, then since 1983 he was involved in the Swiss University Sports movement first as Member of the Board and since 1998 as Managing Director of the Swiss University Sports Federation. As part of the Swiss NUSF he was a member of the Organising Committees of numerous FISU World University Championships in different sports. He still serves as Chairman of the Swiss University Sports Foundation. Since 1991 he was involved in FISU as Member and Chair of different Committees and Working groups and he served as a Member of the FISU Executive Committee since 2003 (Vice President 2011-15, 1st Vice President since 2015-23). In January 2021 he became FISU Acting President and had to stand for the development of the University sports movement in the challenging time of COVID-19 pandemic and rapidly changing political situation worldwide. He proved to show adaptability and force to help FISU overcome met challenges with 2 successfully organised FISU World University Games in 2023 (USA and China). He was elected President at the FISU General Assembly on 18 November 2023 in Geneva.