Latest odds for all the runners for the Grand National including best bets and expert advice. 50/1 winner tipped last year. Don\. Definitly Red is currently the favourite to win the Randox Health Grand National handicap in 20 minutes. Betting on the Grand National is quick and easy on Paddy Power. Bet £/€10 get The latest prices for the greatest steeplechase in the World. Aintree will.