Rising Impact

Both are about a young golf prodigy getting trained by a veteran in golf. Both come from a remote area and play to improve their game. Both are extremely talented and can adapt their game in unique situations. 

Both golf-themed shows with stakes that rapidly escalate into life or death golf duels 

Both Anime have a pretty similar start. City lady finds a young but really strong boy who lives in the mountains/woods with his grandfather. After learning from the lady about a mysterious ball the boy decides to follow her in order to grow even stronger.