It was the third stage of the event, which began in Jersey on Sunday.
Competitors had sailed 26.5 nautical miles from Carteret in tricky conditions.
After the start, the competitors set off upwind to pass the clearance buoy before sailing under 15 to 20 knots of crosswind to the south of Sark.
One boat had to abandon before the start following the breakage of its mullet during a jibe.
Jérôme Desvaux, long-time participant, said: “These were ideal conditions for our boat. The last leg was complicated to maneuver to hold the spinnaker but we managed and arrived in the leading group.”
The young Granvillais from Pied d’Alouette, who came second in corrected time during this event, also distinguished themselves.
Benoît Charon, their skipper, was delighted with the progress of his team.
“We are starting to have routines of preparing for a regatta, preparing the boat, watching the weather, doing a little sailing… They are interested everything, it’s really nice.
“Today we decided to take a bit of a daring start and we did it, and it went well. I have more and more confidence in them, I think they have confidence in me. We make a good team, with a great atmosphere on board.“
One of the youngsters taking part, Noam, celebrated his 16th birthday.
For many other sailors, it was their first time in Guernsey.
All 380 participants in the event were welcomed by Deputy Chris Blin, Overseas Aid and Development Commission President, at an awards ceremony and the crews’ dinner which took place at Candie Garden.
The competitors left this morning on a stage to Diélette.
