Who wins the Randox Health Grand National at Aintree on Saturday? Andy Stephens puts the 40 runners under the microscope plus has. How One For Arthur won the Grand National to tire and a pack of five horses, with One For Arthur on their outside, started to close him down. Grand National Runners full list with latest odds and best bets for the Grand National. 50/1 winner recommended last year! Grand National Tips · Winner Predictor · Grand National Free Bets · Definitly Red.