The Grand National sees £300million spent on the single main event in the UK alone and attracts over 500 million global viewers.
The most anticipated event in racing's calendar for many, the famous race has appeal outside of normal racing circles, with many usually non-interested punters choosing a horse as a tradition.
First held in 1839, with the aptly named 'Lottery' winning, Saturday will see the 174th iteration of the race held in front of thousands of spectators at Aintree. Though the public and bookies have their favourites, the Grand National is no stranger to having an outsider win.