Geoffrey Siron

Geoffrey Siron is a Belgian former professional player. He won Pro Tour London 2005, where he became the first player to post a perfect record in the top eight of a Pro Tour, winning all of his matches 3–0. This was later matched by Paul Rietzl at Pro Tour Amsterdam 2010, but Siron is still the only player to have done it in a Booster draft top eight. He also finished eighth at Pro Tour Colombus 2004, and finished runner-up in the team portion of the 2004 World Championships in San Francisco.