The Tregarthen crew were victorious on Friday when the swap crew beat the Islander by three seconds.
The Emporer came in third.
In the Ladies race on Wednesday the defending champions won rowing in a mainland gig St Elvin. They just beat the Men a Vaur girls in the Emporer.
Bad conditions meant a reduced field and fewer crews rowed. None of the novice crews rowed at all.
With the good weather over the last couple of days crews are hoping it continues over the World Championships next weekend.