Sailing from TSC, Klaas de Rooy competes in the Western Cape dinghy circuit. Klaas's competitive record on SailingSA begins in December 2023. Since then 7 races across 1 regattas have been completed. Klaas competes mainly in the Hobie 16 fleet, alongside races in other fleets. Highlights include winning the 2023 TSC Classic in the Hobie 16 fleet, along with the 2023 TSC Classic in the Hobie 16 fleet. Klaas remains active in regional dinghy racing.