The international ice-sailing competitions, the Cup of Baikal and the Asian Cup, took place on Irkutsk's Lake Baikal on Thursday. Over 100 participants from Russia, the US, Germany, the Czech Republic, Holland, Poland participated on the frozen lake. Reportedly, the smooth surface of Baikal was covered with puddles creating lumps and bumps. Some of the competitors had their sailboats racing... Еще on metal skates at speeds of up to 100 kilometers per hour (62mph). According to the competition's chief judge, 62 adults from 12 countries participated while a further 26 children from Russia and Poland also took part. «In international rules, the most important principle is to avoid collisions and to observe security,» the judge added.