“The Nippon league uses a smaller baseball, strike zone, and playing field. The Japanese baseball is wound more tightly and is harder than an American baseball. The strike zone is narrower “inside” than away from the batter. Five Nippon league teams have fields whose small dimensions would violate the American Official…

Most mapping systems don’t just use the raw data. They will use something like a map matcher (https://en.wikipedia.org/wiki/Map_match…) to “snap” your raw gps data to something more expected. Map matchers are used 100% of the time for driving apps which is why you are always on a road. I’m not sure what sort of system…