Brazil's Yunidis Castillo picked up her third gold medal at the Paralympic Athletics World Championships in Christchurch, adding the women's T46 400 metres title to the 100 and 200.
Nikol Rodomakina of Russia finished second and Great Britain's Sally Brown third.
Tunisia's Abderrahim Zhiou won the men's 5000 metres T12, having earlier won the 1500 metres and still has to race in the 800 metres .
Ilse Hayes, of South Africa, also picked up her second gold medal with a leap of 5.80 metres in the F13 long jump.
Another four world records in the opening session and so far 39 world records and 107 Championship records have been set over the five days.