TENNIS Guy den Ouden has qualified for the semi-finals of the ITF tournament in Heraklion. After his victory over the Pole Szymon Kielan (7-5, 6-0), the Maarssen native was too strong for the Ukrainian Vladyslav Orlov in three sets in the quarter-finals. The set scores were 6-4, 1-6, 6-1. Leersummer Sidane Pontjodikomo was eliminated in the second round. He lost 7-5 and 6-4 to fellow countryman Niels Visker. (Friday November 3)