A Western Cape sailor, Michael Hartnack represents ZVYC in competitive dinghy racing. Since September 2024, 71 races across 10 regattas have been recorded for Michael. Michael's primary class has been Optimist A, with additional appearances in Optimist B. Notable results include victory at the 2025 W. Cape Championships - Dinghy Classes in the Optimist B fleet and strong finishes at the 2025 HYC Cape Classic Optimist B. Michael remains active in regional dinghy racing.