Dez Maarsen wins Skate Jam in Delft, Holland! Posted on September 22, 2013 by Effraim — Leave Comments ↓ Just caught this contest news on Josh Briars facebook. Congratulations to Dez Maarsen winning the flatland contest today at a Skate Jam in Delft, Holland! Sietse Van Berkel and Josh Briars taking second and third place podium spots!