The modern racing yacht is awash with onboard instruments and electronics giving enormous amounts of data. But few people fully understand how to get the most out of all the information at their fingertips, let alone make it useful for the team to enable them to win races. Mastering Data to Win takes the reader through the process: from understanding the concepts, ensuring accuracy, using the data to win races and then post-race analysis to find performance gains. By mastering your instruments you can make the right calls every time and know for certain when to tack, which shift to look out for and how the tide can work with or against you. With colour diagrams throughout, this instructional guide turns information into excellence. Accessible to those new to racing, it also has a depth of information that will transform the performance of even professional sailors. AUTHORS: Mark Chisnell is the author of 18 books as well as being a professional sailor and navigator. He has worked for 7 America's Cup teams and won 3 Sailing World Championships and the Admiral's Cup. He currently works at INEOS Britannia preparing for the next America's Cup. Gilberto Pastorella is an applied mathematician, business and data consultant for multinational companies as well as being a professional sailor and navigator. He sails in the Swan 50 and ORC circuits and is a data analyst for a TP52 team.