Day three at the Spanish Para Badminton International produced a number of upsets ©Getty Images

Thailand’s Mongkhon Bunsun produced one of the early shocks at the Spanish Para Badminton International - the final Tokyo 2020 Paralympics qualification event - in Cartagena.

On day three, Bunsun defeated France’s third seed in the men’s singles SL3 category, Mathieu Thomas, in a gruelling three-game affair by a score of 15-21, 21-12, 21-17 in Group D.

There was another upset in the WH1 women’s singles as Israel’s third seed Nina Gorodetzky was beaten 21-8, 21-10 by Belgium’s Man-Kei To, who is unseeded.

And in a third turn-up, unseeded Russian player Tatiana Gureeva earned a hard-fought 24-26, 21-12, 21-19 win over third seed Amnouy Wetwithan of Thailand in their WH2 women’s singles match.

The event will run until Sunday (May 16) and features men’s and women’s singles, men’s and women’s doubles and mixed doubles.

A total of 157 players from 36 countries have arrived in the maritime enclave town for the competition at the Palacio de los Deportes de Cartagena.

Meanwhile Britain’s top seed in the SL3 class Daniel Bethell, maintained his winning momentum with a 21-4, 21-8 win over Pedro Pablo de Vinatea of Peru in Group A.

Bethell’s compatriot Krysten Coombs, second seed in the men’s singles SH6 section was victorious in Group B as he defeated France’s Charles Noakes 21-9. 21-19.         

Britain’s top seed in the men’s SH6 category, Jack Shephard, had a 21-18, 21-7 win over Miles Krajewski of the United States.

Norway’s Helle Sagøy, top seed in the women’s singles SL4 category, won her Group A match against Khadija Khamuka of Uganda 21-8, 21-2.

Another women’s top seed, Germany’s Valeska Knoblauch, was victorious in her WH1 Group A match against Austria’s Henriett Koosz 21-14, 21-10.

In the W2 category, women’s top seed Emine Seckin of Turkey had another win in Group A, this time 21-5, 21-3 against Russia’s Liliia Prokofeva.

Norway’s Cathrine Rosengren, top seed in the SU5 women’s singles, recorded a handsome Group A victory over Turkey’s Zehra Baglar 21-8, 21-8.