Great Britain rider Natasha Baker won gold in the Paralympic Grade II individual equestrian event.
Riding Cabral on her Paralympic debut, Baker set a Grade II record of 76.857%.
Defending champion Britta Napel of Germany finished second with a score of 76.048%, with team-mate Angelika Trabert in third with 76.000%.
"We kind of stepped it up a gear today - he just felt amazing. His warm-up was the best he has ever done. He is such a responsive horse," said Baker.
"Considering I have got no use of my legs, he really does have to try hard. He is a super horse."