A the region sailor, Sebastien Harinkouck represents UNK in competitive dinghy racing. Since February 2025, 2 races across 1 regattas have been recorded for Sebastien. Sebastien's primary class has been Jaz 30, with additional appearances in other fleets. Sebastien's best results include winning the SailingSA events in the multiple fleets fleet, as well as the SailingSA events in the multiple fleets fleet. Sebastien continues to compete regularly across provincial and national sailing events.