Thai boxer Wanheng Menayothin grabbed his 51st straight victory on Wednesday in a long but lopsided bout against a fighter from the Philippines, defending his WBC title and surpassing the undefeated record of boxing legend Floyd Mayweather Jr.

The 105-pound minimumweight champion, nicknamed the “dwarf giant” for his compact build and heavy hitting style, won on points after a bruising 12 rounds against Pedro Taduran in the Thai city of Nakhon Sawan .

Wanheng, 32, shot to unlikely fighting fame in May when he dispatched Panamanian Leroy Estrada, equalling “Money” Mayweather’s win streak.

Wanheng’s record-busting quest has generated buzz in Thailand and in boxing media outlets. But it has also been shrugged off because of the two very different careers of the famous, flashy American and the softly spoken Thai.

Wanheng has fought undistinguished rivals on home turf while Mayweather defeated some of the sport’s all-time greats including Manny Pacquiao and Oscar De La Hoya.

Wanheng’s latest win brings him level with Mexican flyweight Ricardo Lopez, who retired with 51 wins, one draw and no losses.