Queen Elizabeth's horses have won nearly £7 million in prize money over the last 30 years.
The 91-year-old monarch's equines have won 451 races from 2,815 runs, raking in more than £6.7 million in cash, according to figures from MyRacing.com.
Last year was a record-breaking one for the royal as her speedy four-legged friends scooped winnings of more than £557,000.
But it's not known whether the queen has won or lost money because she has run 24 horses this year and it costs around £25,000 to £30,000 a year to keep a horse in training.
Elizabeth's first success came in 1949 when her horse Monaveen won at Fontwell Park, West Sussex, south east England.
While she doesn't have a bet on the horses, she is said to reading the Racing Post newspaper on a daily basis while tucking into her breakfast.
What's more, the monarch attends the Royal Ascot race meeting on an annual basis and in 2013 she was named Owner of the Year at the Racehorse Owners Association Awards.
It came after her horse Estimate won the Gold Cup at Royal Ascot, the first time a reigning sovereign had won the prize in the race's 207-year history.
Rachel Hood, president of the ROA, said at the time: "British racing has been incredibly fortunate to benefit from Her Majesty The Queen's lifelong support and the remarkable success of Estimate in the Ascot Gold Cup was a very special occasion for the entire sport.
"On behalf of all racehorse owners, the Racehorse Owners Association is honoured and delighted to present the 2013 racehorse owner of the year to the queen."
The prize was collected on Elizabeth's behalf by her racing manager John Warren and his daughter Susannah.
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