Amby Burfoot ‘68 believes that every race he runs is a gift, perhaps even more so at the age of 75. Burfoot, a former Boston Marathon champion, Wesleyan cross country star, and editor-in-chief of “Runner’s World” magazine, finished his 59th straight Manchester Road Race on Thanksgiving, setting a new race record. “The race was great. I ran every step with an old friend and Manchester resident, Steve Gates, who was running his 52nd in a row. We finished hand in hand,” Burfoot said in an e-mail after the race. His time was good enough to win the 75 to 79…