Georges St-Pierre has two losses against two opponents on his MMA record. For a list of St-Pierre's best fights, refer to "Best fights of Georges St-Pierre".
On April 7, 2007 Georges St-Pierre met Matt Serra in a welterweight (UFC Championship) title defense fight. St-Pierre was 25 years old and with a record of 13-2 (10), and Serra was 32 years old and with a record of 11-4 (6). St-Pierre lost the fight via 1st-round TKO and lost the title.
On October 22, 2004 Georges St-Pierre fought Matt Hughes in a welterweight title fight for the UFC Championship title. St-Pierre was 23 years old and with a record of 7-1 (6), and Hughes was 31 years old and with a record of 36-4 (28). St-Pierre lost the fight via 1st-round submission.