The Tokyo Organizing Committee of the Olympic and Paralympic Games hopes to move forward the start times of the 2020 marathons by one hour to 6 a.m. to avoid the extreme summer heat, sources said Wednesday.In July, the International Olympic Committee approved the organizers' plan to set the start times for the men's and women's marathons at 7 a.m., 30 minutes earlier than initially slated when Tokyo launched its bid to host the July 24-Aug. 9 Games.But after a record heatwave in 2018, with temperatures reaching 41.1 C in Kumagaya near the Japanese capital, concerns have grown that similar c…READ FULL ARTICLE