Bondoc Ionescu-Crum was born in the Bulgarian commune Bregovo to Romanian parents. When he was a little child, his family settled in Brașov where he attended the Andrei Șaguna College. In 1934, at the Inter-school Competitions that took place on the Câmpia Libertății from Blaj, he won five races and set a new national record in the long jump, jumping 7.03 meters. He won the title of vice-champion of the same event at the Balkan Games in Istanbul the following year. Ionescu-Crum competed in the men's long jump at the 1936 Summer Olympics. He was also a footballer, playing as a defender for Sportul Studențesc București and Venus București, winning the Divizia A title with Venus in the 1938–39 season, playing 7 games in the campaign. He fought for the Romanian Armed Forces in World War II being injured and having achievements for which he was decorated. After World War II, Ionescu-Crum became a football manager, coaching Universitatea Craiova, Tractorul Brașov and Hidromecanica Brașov. He received post-mortem the Honorary Citizen of Brașov title, also having a street in the city named after him.