In line with the YCM's sporting policy and featuring the Melges 20 class from 2013 thanks to the efforts of Valentin Zavadnikov, then later the J/70 class, the Monaco Sportsboat Winter Series are a one-design winter programme of training and regattas taking place monthly between December and March. The format has proven hugely popular, with more than 350 yachtsmen and women coming from all over Europe to set up their winter training base in the Principality, as they prepare for the biggest races of the coming season.