A the region sailor, Willem Van Biljon represents in competitive dinghy racing. Since April 2026, 2 races across 1 regattas have been recorded for Willem. Willem competes mainly in the various classes fleet, alongside races in other fleets. Highlights include winning the SailingSA events in the multiple fleets fleet, along with the SailingSA events in the multiple fleets fleet. Willem remains active in regional dinghy racing.