Tamirat Tola, called into the Ethiopian team as a late replacement, won the men’s marathon title in an Olympic record of 2:06:26 in brutal heat and humidity over a course of hugely demanding hills, with Belgium’s Bashir Abdi earning silver in 2:06:47.Kenya’s Benson Kipruto, fastest in the world this year after winning the Tokyo marathon in 2:02:16, marked his Olympic debut with bronze in 2:07:00 on a day when his 39-year-old compatriot Eliud Kipchoge, seeking a third consecutive title, failed to finish.Britain’s Emile Cairess, making his Olympic debut, finished in fourth place, clocking 2:07:29 after moving past Ethiopia’s Deresa Geleta in the finishing stages, with the latter recording 2:07:31 and finishing a second ahead of Japan’s Akira Akasaki, who set a personal best.In the circumstances it was scarcely creditable that Tola bettered the Olympic mark of 2:06:32 set at the Beijing 2008 Games by the late Kenyan runner Sammy Wanjiru.Huge crowds lined the route in the closing stages, a...