I am in the @salixsorbus camp with this.
Please note the “and”, I take this to read that each sports field needs to be distinct from the others so several football pitches that are the same size etc are not distinct from each other so sticking a number on the end does not make it so.
If they where to also have a 5 a side pitch that would be distinct.
I commented on another post and I believe it is correct here, a tenpin bowling alley would be 1 waypoint even if the lanes crossed in to a 2nd cell.