Ronnie exits the back of the coffee shop and is ambushed by General Eiling's soldiers in episode 1x14 "Fallout".
Barry loses control of his new speed powers after leaving the police station in pilot episode.
Barry waits for the right moment and then swaps himself out with his past self in episode #217 "Flash Back".
Barry catches up with Zoom only for Zoom to be killed by his own time double in episode #223 "The Race of His Life".
Savitar drops the Earth-3 Flash in an alley and prepares to kill him before getting pulled away by the stone in episode #309 "The Present".