Used to play what we called "strikeout"
Small backyard, with a large wooden fence separating the neighbors yard.
Batter would stand in front of the fence where home plate was, and pitcher would stand back, probably about the distance of a little league pitching mat.
Catch is, we would use a Tennis Ball.
That way we could pitch as hard and fast as we liked, making it difficult to hit, but wouldn't hurt that much if the batter got hit with it.
The field was very small, the bases weren't that far apart, and right behind the small outfield was many Orange trees, where if you hit it, was an instant Home Run.