Sebastian Fundora has one loss against one opponent on his boxing record. For a list of Fundora's best fights, refer to "Best fights of Sebastian Fundora".
On April 8, 2023 Sebastian Fundora met Brian Mendoza in a super-welterweight (WBC) world-title defense fight. Fundora was 25 years old and with a record of 20-1-1 (13), and Mendoza was 29 years old and with a record of 21-2 (15). Fundora lost the fight via 7th-round KO and lost the title.