Abstract: An outfield wall assembly for installation above a ground surface about at least a portion of the perimeter of the outfield of a baseball playing field includes a wall structure having two or more panels, each having a main front face, the panels being positioned and disposed so that the main front faces of each of the panels are each positioned and disposed in angled relation to one another. When installed, and supported in an operative upstanding position, the main front faces of each of the panels are positioned and maintained at an upwardly and outwardly angled orientation relative to the playing field.