The team made the journey in 2 hours and 36 minutes at an average speed of 44.6 knots, or 82 kilometres per hour.
A crew of five took to the water in the 75 foot, all gold, Thunderchild II yesterday to break the Cork to Fastnet Lighthouse and back record for the over 50 foot class.
Safehaven Marine say they will be submitting the time to powerboating authority UIM for official verification.
