US Patent 11332948 Arena apparatus and methods of using and constructing same

An arena apparatus for staging a sport with at least one athlete is provided. The arena apparatus includes a floor having a perimeter; and at least one wall at the perimeter and extending upwardly and outwardly from the floor at an angle greater than or equal to fifteen degrees measured from an axis perpendicular to the floor, wherein the angle of the wall prevents the athlete from standing on the wall.