The fight took place at the T-Mobile Arena in Las Vegas and lasted all the planned 12 rounds.
According to their results, the judges sided with Alvarez - 116:112, 115:113 (two).
For Saul, this victory was the 58th in his career.
Also on his track record are two draws and two defeats (58-2-2).
Gennady suffered a second defeat (43-2-1).
Earlier, Russian boxer Dmitry Bivol and Mexican Gilberto Ramirez had their first battle of views before a face-to-face fight.