Organizers of the Tokyo Olympics and swimming's international governing body plan to alter the course for the open water races at next year's postponed Summer Games due to predicted changes in the tide level, sources familiar with the matter said Tuesday.Following the one-year postponement of the games due to the coronavirus pandemic, the meteorological outlook for the amended race dates shows significantly different tidal conditions around the course at Odaiba Marine Park in Tokyo.Related coverage:IOC should pay half of extra cost for delayed Tokyo Games: economistREAD FULL ARTICLE