Build and Runes
Pay attention to Renekton’s fury bar, as he will most likely play aggressive when it turns red.
Most Renekton players will try to turn back to you so that he can use his dash twice when being chased. Deny this by stepping a bit back.
Be careful when going in to CS, this will allow him to easily Q for free poke. Try and bait it out so you can CS more easily.
If you are really low vs a Renekton and his flash is up, be VERY careful. He can “e” flash for an easy kill.