British duo Helen Glover and Heather Stanning retained their pairs title at the Rowing World Championships in Aiguebelette.
The pair fought off competition from their New Zealand and USA counterparts after a storming start, to make them reigning Olympic, World and European champions.
After making a good start, they were never under any threat and cruised home in 6 minutes 52.99 seconds to take the win by two lengths.
SIGN UP NOW
Want to become a GMS writer? Sign up now and submit a 250 word test article:
"We have worked very, very hard and it's exciting because we feel there are more improvements to come," Stanning told britishrowing.org.
Glover added: "We wanted to feel the pressure here of defending a title because that is what we will have to do in Rio."
James Foad and Matt Langridge had to settle for silver in the men's equivalent, while Charlotte Taylor and Kat Copeland almost upset defending champions New Zealand in the lightweight doubles, eventually claiming silver.
Copeland said: "The first job was to qualify the boat for Rio this year. I also didn't expect the depth of field here. It's the hardest event I have ever done. So I'm really pleased with what we have done here."
"I didn't look out of the boat. It was all about seeing how well we could do by racing our own race. Today the Kiwis were good enough but now it's game on," Taylor added.
Will Fletcher and Richard Chambers, selected for the first time this season in the men's lightweights, also won silver, while Scott Durant, Alan Sinclair, Tom Ransley and Stewart Innes won bronze in the men's four.