Steventon rider Ami Measor went through to the Horse of the Year Show after winning a qualifier in Py-combe, Sussex.
Riding Diamond Touch II, the 23 year-old won a jump-off against 40 of the 104 riders in her class, and will now compete in the Amateur Classic in Birmingham on October 6.
There are eight qualifying events around the country, and only three riders from each qualifier go through.
Diamond Touch is owned by Jane Dexter, owner of Blewbury Riding Centre.
“I hope to do well, but I was particularly pleased to win as he is a young horse," said Measor.
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