KTAR.com Drone Racing League bringing first live US race to Chase Field KTAR.com
Partnering with The Drone Racing League, Arizona Diamondbacks Events & Entertainment is bringing the first official live U.S.-based DRL race to Phoenix.
http://www.dronestagr.am/blog/ktar-com-drone-racing-league-bringing-first-live-us-race-to-chase-field-ktar-com/