Iordăchescu competed in the FIDE World Championship in 2000 and 2004. In 2002, he finished third in the Corus Tournament C group in Wijk aan Zee. He tied for 1st–6th places with Reiner Odendahl, Erwin l'Ami, Daniël Stellwagen, Susanto Megaranto and Friso Nijboer at HZ Open in 2005. Iordăchescu won the 2006/07 Reggio Emilia tournament.