Third-seeded Nozomi Okuhara won her first round match in badminton's Bitburger Open against Grace Gabriel in the German town of Saarbrucken on Wednesday.
The Japanese player was too good for her Nigerian opponent winning 21-10, 21-15 in 23 minutes.
In other women's first round matches, Taiwan’s Hsu Ya Ching had to work hard to get past Yelyzaveta Zharka of Ukraine 21-15, 15-21, 21-15 in 38 minutes and Kirsty Gilmour of Scotland had little trouble beating Denmark’s Anna Thea Madsen 21-8, 21-19.
Japanese fourth seed Akane Yamaguchi was pushed to three games by Pai Yu Po of Taiwan before winning 21-18, 13-21, 21-11. Kristina Gavnholt of the Czech Republic was a comfortable winner against Ireland’s Chloe Magee, winning 21-16, 21-12.
Natalia Koch Rohde of Denmark won in straight games against Indonesia's Lindaweni Fanetri 21-10, 22-20 in 37 minutes. Thai seventh seed Busanan Ongbumrungphan beat Sabrina Jaquet of Switzerland 21-17, 21-17 and Russia's Ksenia Polikarpova got past Linda Zetchiri of Bulgaria 22-20, 21-18.
Denmark's Line Kjaersfeldt took 47 minutes to get past Fontaine Mica Chapman of England 19-21, 21-17, 22-20 while eighth seed Porntip Buranaprasertsuk of Thailand cruised past Belgian Lianne Tan 21-13, 21-12.
Mauritian Kate Foo Kune beat Sashina Vignes Waran of France 21-18, 17-21, 21-9 in 34 minutes and Malaysia's Jing Yi Tee got past America's Rong Schafer 13-21, 21-15, 21-11.
Hometown girl Olga Konon got past Russia's Natalia Perminova in straight games, winning 21-18, 21-15.