Floyd got the unanimous decision against the Filipino superstar.
Judge Dave Moretti had it 10 rounds to two, or 118-110 for Mayweather. Judges Glenn Feldman and Burt Clements each saw it 116-112, giving Mayweather eight of the 12 rounds.
His win means, he has improved his record to 48-0.
“He’s a tough competitor,” Mayweather said after the bout.