Shetland ponies and riders
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Shetland Pony Grand National for aspiring jockeys

12 December 2015 Last updated at 12:38 GMT

The annual Shetland Pony Grand National is due to take place in London.

It's a chance for aspiring jockeys, aged between nine and fourteen, take part in a horse riding competition.

BBC reporter, Mike Bushell, tried it out.