WILD cards Katie Swan and Harriet Dart kept the British flag flying at the Fuzion 100 Ilkley Trophy on a day of carnage for the seeds in the women's singles.

World No 206 Swan caused one of the upsets by defeating third seed Luksika Kumkhum of Thailand 4-6, 6-3, 6-4 in the first round.

The 19-year-old from Bristol took 2hr 3min to defeat the world No 92 and book her place in the last 16.

Dart's match against experienced Dutch player Richel Hogenkamp was much closer as far as the rankings were concerned, with Dart at 190 compared to Hogenkamp's 163, but it wasn't much closer on court as the 21-year-old Londoner triumphed 6-3, 6-0.

Now Swan will play Russia's Ekaterina Alexandrova, one of the few seeds to survive.

Next up for Dart is another Russian, Anna Kalinskaya, who put out fifth seed Arantxa Rus (Netherlands) 6-0, 6-4.

Other seeds to bite the dust were No 2 Belinda Bencic (Switzerland), No 6 Nicole Gibbs (United States) and No 8 Sara Sorribes Tormo (Spain).

Bencic retired when trailing 6-2, 2-0 to qualifier Abigail Tere-Apisah (Papua New Guinea), Gibbs was beaten 2-6, 5-3, 6-0 by 2016 winner Evgeniya Rodina (Russia) and American Lauren Davis saw off Tormo 6-0, 7-6 (7-3).