How One For Arthur won the Grand National. One For . For the fourth year in succession all horses came back safe and sound. On that. The Last Samuri heads the final field of 40 runners in Saturday's Randox Health Grand National at Aintree. Sportsmail's Sam Turner analyses. 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. One of two contenders, alongside Bishops Road, for the trainer having her first runners in the race. One thing to be said from the course: Sometimes this race throws up fairy tales and this is one of. When it comes to racing betting, we have all the markets covered for daily races with the latest free bets and horse racing offers, as well as ante post betting or the Classics and big festivals. While the big Aintree meeting has been dubbed the 'Tanned National' in honour of starasgame racegoers, this one wants to swerve the sun. Grand National Cheltenham Festival Fantasy Royal Ascot More.