A KwaZulu-Natal sailor, Mark Flack represents HMYC in competitive dinghy racing. Mark's competitive record on SailingSA begins in January 2025. Since then 35 races across 5 regattas have been completed. Mark's primary class has been Mirror, with additional appearances in other fleets. Highlights include winning the 2025 Hmyc Grand Slam Multihull Final in the Mirror fleet, along with the 2025 Hmyc Grand Slam Multihull Final in the Mirror fleet. Mark remains an active competitor in the Western Cape sailing circuit.