Marcel is a professional navigator and marine electronics specialist with over two decades at the top of the sport. He provides weather forecasting and routing for high-profile campaigns and consults on onboard electronic systems across the full spectrum of offshore racing — from exploration superyachts to record-setting super maxis.

His track record speaks for itself. He has won the Rolex Giraglia twice, once as navigator aboard the Ker46 Lisa R and once with Red Bandit, and set the course record for the Palermo-Montecarlo race aboard the 100-foot maxi Black Jack. He has navigated alongside world-class tacticians including Jesper Banks on the Ker46 Lady Mariposa campaign and competed with him at the 12 Meter World Championship. More than three-quarters of the races he has sailed have finished on the podium.

A trained systems electrician with two postgraduate degrees in Business Information Systems and IT, Marcel brings a rare combination of hands-on technical skill and analytical depth. Two things drive him — sailing and data — and he is at his best when passing that knowledge on. This masterclass distils decades of frontline experience into a practical, no-nonsense framework that works whether you're running a grand prix programme or getting your club racer properly dialled in for the season.