Every thoroughbred racehorse can trace their pedigree back to just three Arab stallions, with the first stallion, the Byerley Turk, actually surviving war at the Battle of the Boyne in 1690.

So how from such a relatively small gene pool can you distinguish who is going to make a champion racehorse?

Join Hannah Quinn Mulligan on her quest to find the perfect racehorse, where she'll meet Grand National trainers and risk taking punters, not to mention some very, very expensive racehorses. Show less