Passage 6.11.5
γεγόνασι δὲ αὐτῷ καὶ Πυθοῖ νῖκαι τρεῖς, αὗται μὲν ἐπὶ πυγμῇ, Νεμείων δὲ ἐννέα καὶ Ἰσθμίων δέκα παγκρατίου τε ἀναμὶξ καὶ πυγμῆς. ἐν Φθίᾳ δὲ τῇ Θεσσαλῶν πυγμῆς μὲν ἢ παγκρατίου παρῆκε τὴν σπουδήν, ἐφρόντιζε δὲ ὅπως καὶ ἐπὶ δρόμῳ ἐμφανὴς ἐν Ἕλλησιν εἴη, καὶ τοὺς ἐσελθόντας ἐς τὸν δόλιχον ἐκράτησεν· ἦν δέ οἱ πρὸς Ἀχιλλέα ἐμοὶ δοκεῖν τὸ φιλοτίμημα, ἐν πατρίδι τοῦ ὠκίστου τῶν καλουμένων ἡρώων ἀνελέσθαι δρόμου νίκην. τοὺς δὲ σύμπαντας στεφάνους τετρακοσίους τε ἔσχε καὶ χιλίους.
He also won three victories in boxing at Pytho, and at Nemea nine victories, as well as ten at the Isthmus, divided between pankration and boxing. In Phthia among the Thessalians, he ceased competing earnestly in boxing or pankration, focusing instead on securing fame throughout Greece as a runner, and there he defeated all entrants in the dolichos race. It seems to me he aspired particularly to compete with Achilles, desiring to win a race victory in the homeland of that hero, who was the swiftest of all those called heroes. His crowns altogether numbered one thousand four hundred.