(Γλαῦκος), of Carystus, the son of Demylos, was one of the most celebrated Grecian athletes. He was a περιοδονίκης, having gained one Olympic, two Pythian, eight Nemean, and eight Isthmian victories in boxing. It is said that while stilt a boy, he refixed a ploughshare which had dropped out of its place by the allows of his fist, without the help of a hammer. His state at Olympia was made by GLAUCIAS of Aegina. (Müller, Aeginet. 3.4. p. 103; Krause, Olymp. p. 292.)
[P.S].A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890