11TRI Srebrno Jezero Triathlon 2026

11TRI Srebrno Jezero Triathlon 2026 is an official amateur triathlon event in Veliko Gradište, Serbia on 6 June 2026. The official Serbian Triathlon Federation event page links to the official 11TRI event page and registration, and the official 11TRI race information confirms Srebrno Jezero as venue plus open Olympic and sprint races, relay options, youth formats, age-group categories, and online registration for regular participants.