On Route 8, a Wimpod was there on regular playthrough. I encountered it, lowered it below 50% HP (trying to catch it) and he ran away.
I wasn't able to re-spawn straight after, so I just kept going on my journey.
Now that I'm done with the main story line (a week or so later), I came back there, expecting to see another Wimpod. To my great disappointment, nothing was there to be seen.
My question is: Does it re-spawn at any point or day? Or will I have to trade to get it?