Passage 6.15.1
Ἀρχίππῳ δὲ Μιτυληναίῳ τοὺς ἐς τὴν πυγμὴν ἐσελθόντας κρατήσαντι ἄνδρας ἄλλο τοιόνδε προσποιοῦσιν οἱ Μιτυληναῖοι ἐς δόξαν, ὡς καὶ τὸν ἐν Ὀλυμπίᾳ καὶ Πυθοῖ καὶ Νεμέᾳ καὶ Ἰσθμῷ λάβοι στέφανον ἡλικίαν οὐ πρόσω γεγονὼς ἐτῶν εἴκοσι. τὸν δὲ παῖδα σταδιοδρόμον Ξένωνα Καλλιτέλους ἐν Λεπρέου τοῦ ἐν τῇ Τριφυλίᾳ Πυριλάμπης Μεσσήνιος, Κλεινόμαχον δὲ Ἠλεῖον ὅστις ὁ ποιήσας ἐστὶν οὐκ ἴσμεν· ἀνηγορεύθη δὲ ὁ Κλεινόμαχος ἐπὶ νίκῃ πεντάθλου.
The people of Mytilene attribute another considerable honor to Archippos of Mytilene, who won victories in boxing, claiming proudly that he gained crowns at Olympia, Pytho, Nemea, and the Isthmus while he had not yet reached the age of twenty. Xenon, son of Kallitelos, a youth who won the footrace, was depicted at Lepreum in Triphylia by Pyrilampes the Messenian, and Kleinomachos of Elis by an artist whose identity we do not know; Kleinomachos, however, was proclaimed victor in the pentathlon.