Windsurfer Dorian Van Rijsselberghe claimed the first sailing medal of the Rio Olympics on Sunday after building up an unassailable lead in the preliminary rounds.

Van Rijsselberghe, the defending champion, was watched by the Dutch royal family on board a boat and was greeted so affectionately that one TV commentator mistook queen Maxima for his wife.

Oeps! De commentator van NBC ziet koningin Maxima aan voor de vrouw van Dorian van Rijsselberghe. #TeamNL #Rio2016 pic.twitter.com/NhDfqt4f7P

— NOS Sport (@NOSsport) August 15, 2016

In other events on the ninth day of the games, Sifan Hassan qualified for the final of the 1,500m and the Dutch men’s hockey team beat Australia 4-0 to make it to the semi-finals. They will now meet Belgium.

On Monday afternoon, the Dutch women’s volleyball team will meet South Korea in an effort to win a semi-final place. Dafne Schippers will be in action again in the 200m qualifiers and sailor Marit Bouwmeester has hopes of a medal in the laser radial class.

After nine days of competition, the Netherlands is 12th in the medals’ table, with four gold, two silver and three bronze.