Kate Middleton faced off against her husband Prince William in the inaugural King's Cup charity regatta, and two of their children, Prince George and Princess Charlotte, were there watching with Kate's parents Michael and Carole Middleton.
Comedian John Bishop and adventurer Bear Grylls also competed. William was competed for Child Bereavement UK, while Kate opted to support four charities on behalf of the Royal Foundation. William finished the race third, while Kate finished seventh, or second to last.
On Instagram, the pair said they look forward to competing again next year. "Their Royal Highnesses hope that The King's Cup will become an annual event, bringing greater awareness to the wider benefits of sport, whilst also raising support and funds for the causes that The Duke and Duchess support."
But the fierce competition had to be put on pause so Kate could, er, correct Charlotte who stuck her tongue out at the crowd, instead of waving as she had asked.