The Duchess of Cambridge has left her prince in her wake - taking the helm and whitewashing the duke on Auckland's Waitemata Harbour.
The royals were generous with those who waited for them in pouring rain at the Viaduct Basin before they set out, but they gave each other no quarter on the water this afternoon.
It was the duchess who came out on top in both races.
Catherine raced with Team New Zealand skipper Dean Barker and Prince William with team manager Grant Dalton, as part of their tour of New Zealand.
Upon their return to the Viaduct a clearly delighted Catherine, who the was victor, only reluctantly left her boat after a long conversation with Barker.
In fact, her husband had to arrive to get her. He walked around to her boat, met her there, and they briefly held hands in celebration.
Unexpectedly, the couple only raced twice and then took a cruise past the Maritime Museum, startling the people who were there.
Earlier on the water, the put on a spectacular demonstration of tacking and cornering with a good wind as they battled each other on rival America's Cup boats.
The rain stopped and the sun came out over the harbour for the racing.
A large contingent of boats followed, but police boats surrounded the yachts for protection.
William and Catherine were both in the thick of it, taking turns at the wheel.
Earlier, when Catherine heard she would be sailing with Barker, she grinned and gave a double-fist pump.