Juan Francisco Estrada of Mexico claimed the WBA and WBO flyweight titles with a split decision victory over Brian Viloria in Macao.
Estrada was ahead on two of the judges' scorecards and the only mystery was how the third man at ringside scored the bout in favour of the outgoing champion.
Viloria did have the better of the early exchanges, 22-year-old Estrada weathering the early storm as the Hawaiian looked to get on top with heavy shots to the body in the third and big right hands in the fifth and sixth.
But the tide began to turn as the fight entered the second half with Viloria tiring visibly, the older man by 10 years receiving a stern warning in the 10th for a low blow.
Viloria was pinned in his own corner in the final round and the general feeling was that the challenger had done more than enough, with two judges giving him the verdict 117-111 and 116-111, with the other giving it to Viloria 115-113.
Estrada's record moves to 23-2 while Viloria slips to 32-4.
"Now the cameras will turn on me, before this fight I considered myself a nobody in boxing," said Estrada. "Now I am starting my career and I feel very happy about it."