In 2009 he won two World Cup stages in Budapest and Warsaw. He was eliminated early in the individual event of the European Championships in Plovdiv, but took the silver medal with Romania. At the World Championships in Antalya he made his way to the final, where he was defeated by Germany's Nicolas Limbach and took the silver medal. He was noted for his “fighting spirit and his intelligence” as well as his technical progress. In the team event Romania created an upset by beating favourites Germany, France and Hungary to meet Italy in the final. Dumitrescu entered for the last bout on 40–34 for Italy and beat Aldo Montano 11–4 to win Romania their first World gold medal in sabre. Dumitrescu finished the 2008–09 season number two in FIE rankings. For this performance he was granted the title of master emeritus in sport.