Representing France, Guillaume is active in the Age of Empires II scene. Guillaume has played a total of 17 matches in Age of Empires II. Guillaume focuses mainly on unranked matches.

Guillaume has chosen to skip ranked play, focusing on other game modes. Among all available civilizations, Guillaume picks Mongols most frequently at 52.9%. Playing the flank role, Guillaume achieves a 33.3% win rate over 3 matches.