Tiger Roll wins back-to-back Grand Nationals to emulate Red Rum

(CNN)Tiger Roll may have been the pre-race favorite at the Grand National but not since 2005 had the favorite won what is arguably the world’s most famous jump race. Not since Red Rum in 1973 and 1974 had the same horse won Grand Nationals in back-to-back years and who is to say Tiger Roll can’t make more history next year? READ: Wimbledon of hunt racing The 4-1 favorite ridden by Irishman Davy Russell chased down 66-1 outsider Magic of Light with less than two of the 30 fences remaining and ultimately cruised home by roughly three lengths to cap the 4.25-mile race in Liverpool. Visit CNN.com/Sport for more news, features and video The rally was watched by an estimated global …