Ὀλύμπια νικᾶν
From LSJ
κοινὴ γὰρ ἡ τύχη καὶ τὸ μέλλον ἀόρατον → fortune is common to all, the future is unknown | fortune is common to all and the future unknown | fate is common to all and the future unknown
be an Olympian, be victor in the Olympian games, win in the Olympian games