Oscar Rivas has one loss against one opponent on his boxing record. For a list of Rivas's best fights, refer to "Best fights of Oscar Rivas".
On July 20, 2019 Oscar Rivas fought Dillian Whyte in a heavyweight world-title fight for the WBC title. Rivas was 32 years old and with a record of 26-1 (18), and Whyte was 31 years old and with a record of 25-1 (18). Rivas lost the fight via 12-round unanimous decision.