Marc Derfoldy sails out of UNK in the the region. Since March 2025, 20 races across 2 regattas have been recorded for Marc. Marc competes mainly in the Hunter fleet, alongside races in other fleets. Marc's best results include winning the SailingSA events in the multiple fleets fleet, as well as the SailingSA events in the multiple fleets fleet. Marc continues to compete regularly across provincial and national sailing events.