‘One Time’ used a cautious approach despite dropping the 40 year-old Italian in the very first round, boxing beautifully to a shut-out win on all three cards 120-107. The crowd booed the lack of action from knockout artist Thurman, who may have been guilty of playing it too safe in controlling the fight from start to finish.
Also on the bil, former world champion Abner Mares shared five manic rounds with hardened Jose Ramirez before retiring the Mexican on his stool before the sixth session began.
Mares, 29, dropped the dogged Ramirez in the first, third and fifth rounds to eventually take the stoppage win and move to 28-1-1 in a highly entertaining match-up.
Earlier, Jermall Charlo set-up a world title chance against IBF light-middleweight champion Cornelius Bundrage in 2015 with a dominant win over Lenny Bottai.
The 24 year-old established his superiority from the off, catching Bottai at will to take the first two rounds comfortably, until a huge shot in the third round ended the bout.
Bottai attempted to get to his feet, but was clearly out of it, and referee Jay Nady rightly waved the fight off just seconds before the corner threw in the towel.