ὁ λαγὼς τὸν περὶ τῶν κρεῶν δρόμον τρέχει → save one's bacon, save one's neck, save one's skin
rivalry: P. and V. ἔρις, ἡ, ζῆλος, ὁ, P. φιλονεικία, ἡ; see rivalry.
contest: P. and V. ἀγών, ὁ, ἅμιλλα, ἡ; see contest.