 On 27 March 2010 at Hamburg, Germany Gamboa dominated Argentinian boxer Jonathan Victor Barros in twelve rounds to retain the WBA featherweight title with a unanimous decision.On 11 September 2010, Gamboa fought "The" "Ring" No.3 ranked featherweight Orlando Salido to unify the WBA and IBF featherweight titles with the result being Gamboa winning by unanimous decision.