9 Downloadable computer software for motion tracking, visualization, controlling, reviewing and displaying of data in virtual reality worlds and augmented and mixed reality environments; downloadable computer software for facilitating and enabling fan engagement in the field of sports and entertainment, namely, downloadable computer software for motion tracking, visualization, controlling, reviewing and displaying of data in virtual reality worlds and augmented and mixed reality environments; downloadable computer software for organization of entertainment events in virtual world, namely, downloadable computer software for motion tracking, visualization, controlling, reviewing and displaying of data in virtual reality worlds and augmented and mixed reality environments