What kind of nerve entrapment is assoicated with overpronation?

Perhaps two: Might experience issues with the radial nerve, or median nerve (pronator syndrome). Likely both would occur after a cumulative and repetitive sequence.

Posterior Tibial nerve: Over pronation of the foot/ankle has been found to be linked to tarsal tunnel syndrome. This movement of the ankle is thought to irritate the posterior tibial nerve along the inside of the ankle. Symptoms may include burning or tingling along the sole of the foot.