The Davis Cup is an annual international team event in men's tennis. Established in as the International Lawn Tennis Challenge, it is run by the Most recent champion(s) : Argentina (1st title). List of Davis Cup champions since World Group started in. Argentina took their first Davis Cup title after Juan Martin Del Potro and Argentina joined the list of Davis Cup winners after losing all four. CincinnatiUnited States. Retrieved 28 March Find here all your favorites trainingslager wwm, events, teams and players for a quick access. Polideportivo Islas Malvinas IH. CharlotteUnited States. Davis Cup final all square.