Tibor Csík started playing sports for the Jászberényi Lehel in 1944. He started boxing at featherweight before competing as a welterweight. He was a representative of the so-called fighting style. He won the national championship in 1946 and 1948, the former with the colors of Szolnok MÁV and the latter as a competitor of Magyar Pamut SC. He also won three Hungarian national team championship titles.
Csík achieved his biggest success when he became Olympic champion in bantamweight in London in 1948. At the 1949 European Championship, however, he was eliminated in the first round. In his last international competition, he finished first in the welterweight at the 1949 World College Championship in Budapest. After the end of his sports career he moved away from boxing and worked at the Hazai Pamutszövőgyár in Újpest. He also took up arms during the 1956 revolution. To escape Soviet tanks and reprisals he emigrated in December, first to Western Europe and then to Australia. He had no real professional or language skills, so he lived in great poverty, working odd jobs as a dock worker and cleaner and on welfare.