29 September 2019, Schleswig-Holstein, Westerland: Philip K?ster from Germany carries his windsurf equipment into the water. The best windsurfers of the world will meet from 27.09.2019 to 06.10.2019 for the 36th World Cup in front of the North Sea island Sylt. Photo: Frank Molter/dpa

29 September 2019, Schleswig-Holstein, Westerland: Philip K?ster from Germany slips during a jump from the footstraps and falls. The best windsurfers of the world will meet from 27.09.2019 to 06.10.2019 for the 36th World Cup in front of the North Sea island Sylt. Photo: Frank Molter/dpa

29 September 2019, Schleswig-Holstein, Westerland: Alessio Stillrich from Germany surfs a wave. The best windsurfers of the world will meet from 27.09.2019 to 06.10.2019 for the 36th World Cup in front of the North Sea island Sylt. Photo: Frank Molter/dpa

29 September 2019, Schleswig-Holstein, Westerland: Philip K?ster from Germany slips during a jump from the footstraps and falls. The best windsurfers of the world will meet from 27.09.2019 to 06.10.2019 for the 36th World Cup in front of the North Sea island Sylt. Photo: Frank Molter/dpa

29 September 2019, Schleswig-Holstein, Westerland: Philip K?ster from Germany slips during a jump from the footstraps and falls. The best windsurfers of the world will meet from 27.09.2019 to 06.10.2019 for the 36th World Cup in front of the North Sea island Sylt. Photo: Frank Molter/dpa

29 September 2019, Schleswig-Holstein, Westerland: Philip K?ster from Germany in action during a competition. The best windsurfers of the world will meet from 27.09.2019 to 06.10.2019 for the 36th World Cup in front of the North Sea island Sylt. Photo: Frank Molter/dpa

29 September 2019, Schleswig-Holstein, Westerland: Philip K?ster (l) from Germany and Dieter van der Eyken from Belgium are in action during a competition. The best windsurfers of the world will meet from 27.09.2019 to 06.10.2019 for the 36th World Cup in front of the North Sea island Sylt. Photo: Frank Molter/dpa

29 September 2019, Schleswig-Holstein, Westerland: The world ranking second Jaeger Stone from Australia surfs a wave. The best windsurfers of the world will meet from 27.09.2019 to 06.10.2019 for the 36th World Cup in front of the North Sea island Sylt. Photo: Frank Molter/dpa

29 September 2019, Schleswig-Holstein, Westerland: Philip K?ster from Germany carries his windsurf equipment over the beach. The best windsurfers of the world will meet from 27.09.2019 to 06.10.2019 for the 36th World Cup in front of the North Sea island Sylt. Photo: Frank Molter/dpa

28 September 2019, Schleswig-Holstein, Westerland: Four-time World Champion Philip K?ster from Germany surfs a wave. The best windsurfers of the world will meet from 27.09.2019 to 06.10.2019 for the 36th World Cup in front of the North Sea island Sylt. Photo: Frank Molter/dpa

28 September 2019, Schleswig-Holstein, Westerland: The four-time world champion Philip K?ster from Germany walks along the beach with his material. The best windsurfers of the world will meet from 27.09.2019 to 06.10.2019 for the 36th World Cup in front of the North Sea island Sylt. Photo: Frank Molter/dpa

28 September 2019, Schleswig-Holstein, Westerland: Four-time World Champion Philip K?ster from Germany surfs a wave. The best windsurfers of the world will meet from 27.09.2019 to 06.10.2019 for the 36th World Cup in front of the North Sea island Sylt. Photo: Frank Molter/dpa

28 September 2019, Schleswig-Holstein, Westerland: Rolf K?ster (l) congratulates his son Philip K?ster from Germany after a competition. The best windsurfers of the world will meet from 27.09.2019 to 06.10.2019 for the 36th World Cup in front of the North Sea island Sylt. Photo: Frank Molter/dpa

28 September 2019, Schleswig-Holstein, Westerland: Four-time World Champion Philip K?ster from Germany jumps during a competition. The best windsurfers of the world will meet from 27.09.2019 to 06.10.2019 for the 36th World Cup in front of the North Sea island Sylt. Photo: Frank Molter/dpa

28 September 2019, Schleswig-Holstein, Westerland: Four-time World Champion Philip K?ster from Germany surfs a wave. The best windsurfers of the world will meet from 27.09.2019 to 06.10.2019 for the 36th World Cup in front of the North Sea island Sylt. Photo: Frank Molter/dpa

28 September 2019, Schleswig-Holstein, Westerland: Four-time World Champion Philip K?ster from Germany jumps during a competition. The best windsurfers of the world will meet from 27.09.2019 to 06.10.2019 for the 36th World Cup in front of the North Sea island Sylt. Photo: Frank Molter/dpa

28 September 2019, Schleswig-Holstein, Westerland: Arthur Arutkin from France jumps during a competition. The best windsurfers of the world meet from 27.09.2019 to 06.10.2019 for the 36th Worldcup in front of the North Sea island Sylt. Photo: Frank Molter/dpa

28 September 2019, Schleswig-Holstein, Westerland: A participant carries his material on the beach of Westerland. The best windsurfers of the world meet from 27.09.2019 to 06.10.2019 for the 36th Worldcup in front of the North Sea island Sylt. Photo: Frank Molter/dpa

28 September 2019, Schleswig-Holstein, Westerland: Lina Erpenstein from Germany (Kiel) surfs on a wave. The best windsurfers of the world meet from 27.09.2019 to 06.10.2019 for the 36th Worldcup in front of the North Sea island Sylt. Photo: Frank Molter/dpa

28 September 2019, Schleswig-Holstein, Westerland: Arthur Arutkin from France surfs in front of a wave wall. The best windsurfers of the world meet from 27.09.2019 to 06.10.2019 for the 36th Worldcup in front of the North Sea island Sylt. Photo: Frank Molter/dpa

28 September 2019, Schleswig-Holstein, Westerland: Maciek Rutowski from Poland jumps during a competition. The best windsurfers of the world meet from 27.09.2019 to 06.10.2019 for the 36th Worldcup in front of the North Sea island Sylt. Photo: Frank Molter/dpa

28 September 2019, Schleswig-Holstein, Westerland: Ross Williams from Great Britain surfs on a wave. The best windsurfers of the world meet from 27.09.2019 to 06.10.2019 for the 36th Worldcup in front of the North Sea island Sylt. Photo: Frank Molter/dpa

28 September 2019, Schleswig-Holstein, Westerland: Henri Kolberg from Schuby in Schleswig-Holstein (Germany) jumps during a competition. The best windsurfers of the world meet from 27.09.2019 to 06.10.2019 for the 36th Worldcup in front of the North Sea island Sylt. Photo: Frank Molter/dpa

28 September 2019, Schleswig-Holstein, Westerland: Leon Jamaer from Kiel (Germany) surfs on a wave. The best windsurfers of the world meet from 27.09.2019 to 06.10.2019 for the 36th Worldcup in front of the North Sea island Sylt. Photo: Frank Molter/dpa

28 September 2019, Schleswig-Holstein, Westerland: Lina Erpenstein from Kiel surfs during a race. The best windsurfers of the world meet from 27.09.2019 to 06.10.2019 for the 36th Worldcup in front of the North Sea island Sylt. Photo: Frank Molter/dpa

28 September 2019, Schleswig-Holstein, Westerland: Arthur Arutkin from France jumps during a competition. The best windsurfers of the world meet from 27.09.2019 to 06.10.2019 for the 36th Worldcup in front of the North Sea island Sylt. Photo: Frank Molter/dpa

28 September 2019, Schleswig-Holstein, Westerland: Spectators stand on the beach of Westerland. The best windsurfers of the world meet from 27.09.2019 to 06.10.2019 for the 36th Worldcup in front of the North Sea island Sylt. Photo: Frank Molter/dpa