The 18-year-old began as the favourite in the women’s T33 400 metres event and was able to lower her own world record to claim the gold, after crossing the line in a time of 1min 10:15sec.

Luna Jansen of the Netherlands finished three seconds adrift of the Briton to claim the silver medal in the discipline.

Watson was then able to lower her world record in the T33 100m by finishing in a time of 19.89, with Luna earning her second silver by clocking 21.66.

"I was shocked as I was going for a personal best," said Watson.

"I'm really honoured and surprised and I think it's still sinking in to be honest.

“Once I get back to my hotel room, I'll probably be bouncing around like an eight year-old."

Ukraine’s Leilia Adzhametova lowered the world record in the women’s T13 100m event to earn a surprise victory over South Africa’s Ilse Hayes.

Adzhametova finished the race in a time of 11.82, while Hayes was forced to settle for the silver medal after crossing in 12.16.

The podium was completed by Germany’s Janne Engeleiter, with her time of 13.04 proving enough to secure the bronze medal.

A fourth and final world record fell in the men’s 1,500m T34, with Tunisia’s Walid Ktila taking 11 seconds off the previous mark of Australia’s Rheed McCracken, after ending the event in a time of 3:19.02.

Britain’s Isaac Towers claimed silver in a European record time of 3:21.14.

Although he saw his world record fall, McCracken earned victory over Ktila in the men’s T34 100m after finishing in 15.41, with his Australian rival clocking 15.53.

Switzerland’s Bojan Mitic completed the podium in a time of 15.77.

A total of 380 athletes are taking part in the Grand Prix event, with a total of 50 countries set to be represented.