borislav ivkov (november 12, 1933 – february 14, 2022) was a serbian chess grandmaster. he was a world championship candidate in 1965. he played in four more interzonal tournaments, in 1967, 1970, 1973, and 1979. ivkov was born in belgrade, then-yugoslavia. he was a three-time yugoslav champion (1958, 1963, 1972) and was the first world junior champion in 1951.