 On 18 July 2008, stepping down to featherweight, Gamboa scored a first-round technical knockout (TKO) victory over Al Seeger to win the vacant WBO-NABO featherweight title at Buffalo Bill's Star Arena.A left hook to the body set up a right hand that landed across Seeger's face, causing him to collapse backwards flat onto the canvas.The referee stepped over Seeger without bothering to count, officially stopping the bout.