WATCH: Kate Middleton Races Husband Prince William at Olympic Park, But Prince Harry Beats Them Both

LONDON, ENGLAND – FEBRUARY 05: Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge play about before they run a race during a training day for the Heads Together team for the London Marathon at Olympic Park on February 5, 2017 in London, England. (Photo by Danny Martindale/WireImage)

Talk about sibling rivalry. They may not be running a marathon any time soon, but they sure can sprint!
The Duke and Duchess of Cambridge and Prince Harry were out in support today for their Heads Together teams for the London Marathon — and after meeting with and encouraging those running this year, they took off on a little sprint themselves. Taking part in a relay with several other Heads Together team members, the royals threw themselves into the first 100 meter sprint of the relay.

Prince Harry came in first (but, to be fair, he once totally beat Usain Bolt in a race), with William not far behind. Kate definitely held her own — getting off to a faster start than William, though he wound up taking second place away from her in the end!

Whether or not the royal trio planned on participating in training day, they sure seemed to have fun, to the delight of the day’s participants.

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SOURCE: AOL – Logan Sowa