Looking at the results of Boston Billy and Sammy Leilei at Boston they are both 2:08 and change. One has course record I believe. Would they have challenged KK current WR if they ran flat courses. For all those who have faced heartbreak hill. My opinion is that would put these two guys at 2:06 or darned close to the Wrec. Leilei is funny he said that he wanted to break the rec at boston with hills, that was before KK time though when the Wrec was a little less superhuman.