Based on seedings, Japan’s Kenta Nishimoto, seeded sixth, and Chinese Taipei player Choi Tien Chen, second, would have expected to progress.

But playing on a home court Gemke and Antonsen got the better of their higher ranked opponents at the Odense Sports Park.

Seventh seed Gemke ousted Nishimoto with a 21-14, 21-17 victory while third seed Antonsen beat Tien Chen 21-17, 21-15.

The women’s singles final will see reigning Olympic champion Carolina Marin of Spain face Japan’s second seed Nozomi Okuhara.

After coming from a game down to beat Beiwen Zhang of the United States in the quarter-finals, Marin made sure she was not involved in another tussle.

The third seed saw off unseeded German Yvonne Li 21-17, 21-11 to set up a meeting with Okuhara who was equally impressive in her semi-final.

Okuhara lost 17 games on her way to a 21-10, 21-7 victory over fourth seed Michelle Li of Canada.

Denmark’s hopes of another chance of gold were dashed by the English pairing of Marcus Ellis and Chris Langridge who defeated Danish duo Joel Eipe and Rasmus KJÆR 21-18, 21-18 in the semi-finals of the men’s doubles.

Ellis and Langridge now face Russians Vladimir Ivanov and Ivan Sozonov who overcame Ben Lane and Sean Vendy of England in three games, winning 21-15, 18-21, 21-14.

There will be an all-Japanese final in the women’s doubles after top seeds Yuki Fukushima and Sayaka Hirota and Mayu Matsumoto and Wakana Nagahara, the second seeds triumphed in their respective last-four games.

Fukushima and Hirota beat Christine Busch and Amalie Schulz of Denmark 21-18, 21-6 while Matsumoto and Nagahara triumphed 21-17, 21-8 against Bulgarians Gabriela and Stefani Stoeva.

In the mixed doubles, third seeds Chris and Gabby Adcock of England downed French duo Julien Maio and Lea Palermo 21-12, 22-20 to move into the final where they will take on Mark Lamsfuss and Isabel Herttrich.

The German fourth seeds saw off Ellis and Lauren Smith 21-18, 21-18.