Athletes in the marathon and race walk events at the Tokyo Olympics were contending for medals but also with an obstacle largely beyond their control -- heat wave.While some thrived in hot and humid conditions in Sapporo, 830 kilometers to the north of the capital, many underperformed or were too exhausted to cross the finish line, including some pre-race favorites.Olympic organizers announced in October 2019 the marathon and race walk events were moving to the cooler climes of Sapporo, the largest city on Japan's northern island of Hokkaido, to protect athletes from Tokyo's heat.Considerin…READ FULL ARTICLE