High Quality Content by WIKIPEDIA articles! The USTA Waikoloa Challenger is one of the series of Challenger Events on the United States Tennis Association circuit. A week of intense play all located in the beautiful Kohala Tennis Garden in Hawaii, USA, which is listed as one of the "50 Greatest U.S. Tennis Resorts" by Tennis magazine. Past champions and players include Andy Roddick, James Blake, Michael Chang, Dmitry Tursunov, Robby Ginepri, Michael Russell, and Frank Dancevic.