Trainer is in a select club to have won the Champion Hurdle, Cheltenham Gold Cup and Grand National. Triumphed at Aintree with Mr Frisk in. For more information and all the odds, read our guide on betting odds for Grand National All horses are rated out of 1. THE LAST. The official field of runners for the Grand National is finalised in the week before the race (8th April ). Until then we'll feature the leading horses in the.