Career
He spent most of his 16-year professional career with Arizona, amassing Eredivisie totals of 316 games and 13 goals over the course of 11 seasons, all with that club Born in Leiden, South Holland, Opdam began his professional career with Arizona Alkmaar, being relegated to the second division in his first year and immediately promoting back in the following. Subsequently, he became an undisputed starter for the North Holland side, amassing more than 400 official appearances.
After a 3–3 draw in Istanbul, the Turkish led 2–0 at half-time, and the defender headed home from a Julian Jenner free kick with seven minutes to go, making it 2–2 and sending his team to the next round on away goals rule (eventually reaching the last-eight stage).
In the 2004-2005 edition Arizona reached the semifinals of the competition, the second time in 24 years. In 2008, one year after finishing second in the Dutch Cup, 32-year-old Opdam had his first abroad experience, signing for Austrian club Football Club Salzburg.
After two seasons, being an important defensive unit in the conquest of back-to-back national championships, he returned to his country, joining Football Club Volendam in the second level Opdam would be, however, overlooked by national team coach Marco van Basten for the final stages in Germany, gaining a total of eight caps.