Pausanias:

Next to those that I have enumerated stands Glaucus of Carystus. Legend has it that he was by birth from Anthedon in Boeotia, being descended from Glaucus the sea-deity. This Carystian was a son of Demylus, and they say that to begin with he worked as a farmer. The ploughshare one day fell out of the plough, and he fitted it into its place, using his hand as a hammer;

Demylus happened to be a spectator of his son's performance, and thereupon brought him to Olympia to box. There Glaucus, inexperienced in boxing, was wounded by his antagonists, and when he was boxing with the last of them he was thought to be fainting from the number of his wounds. Then they say that his father called out to him, "Son, the plough touch." So he dealt his opponent a more violent blow which forthwith brought him the victory.

He is said to have won other crowns besides, two at Pytho, eight at the Nemean and eight at the Isthmian games. The statue of Glaucus was set up by his son, while Glaucias of Aegina made it. The statue represents a figure sparring, as Glaucus was the best exponent of the art of all his contemporaries. When he died the Carystians, they say, buried him in the island still called the island of Glaucus.