Urbančič represented Yugoslavia at the 1968 and 1972 Summer Olympics in the javelin. She finished 6th and 5th, respectively. She won the bronze medal in javelin at the 1974 European Athletics Championships. Urbančič was named Slovenian Sportswoman of the Year six years in a row, from 1969 to 1974. She continued to throw into Masters athletics age groups, setting the current W55 world record.