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Marko Racic (born April 25, 1920) is a Slovenian athlete who participated in the 1948 Summer Olympics in London, England. Representing Yugoslavia, he advanced to the semi-finals of the men's 400 metre competition, but did not make it beyond the opening round of the men's 4 x 400 metres relay. A local and state sprinting record holder, Racic competed internationally for many years and made appearances at the 1946 and 1950 European Athletics Championships prior to taking up personal training and coaching in 1953. He has served as an international athletics judge and an amateur sports administrator who was on committees for several international sporting events in Yugoslavia, including the 1984 Winter Olympics. Since June 2013, he has been the oldest living Slovenian Olympic competitor.