A the region sailor, Sietse Veenstra represents UNK in competitive dinghy racing. Sietse's competitive record on SailingSA begins in January 2025. Since then 1 races across 1 regattas have been completed. Sietse competes mainly in the Hobie Tiger fleet, alongside races in other fleets. Notable results include victory at the SailingSA events in the multiple fleets fleet and strong finishes at the SailingSA events. Sietse continues to compete regularly across provincial and national sailing events.