The Optimist World Championship 2012 in Santo Domingo began yesterday with the Practice Race and as from today, the 260 participants from 52 nations start racing. The weather is hot and humid, with thunderstorms in the evening. During the day, a seabreeze is mostly filling in. As a prologue to the Championship, a tune-up race was organised last week, and after three races, Irina Pineyrua PER was first ahead of Elisa Yokoyama SIN and Leonardo Lombardi BRA. 113 participants. The ranking liste.