WIN with Cheltenham Racecourse

JACK's been told we're steeds in our time. (And a bunch of old mares...)
Now's your chance to win your way into the races at Cheltenham Racecourse this November.
Three days of the finest jump racing action this side of Christmas, featuring the Paddy Power Gold Cup, the post-racing Final Flight bar with The Chip Shop Boys and the fantastic shopping village.
It's all on from 13th - 15th November.
Jump online to book tickets - or answer the question correctly to enter the draw to win tickets to Friday 13th's racing action.
Question: Which of these is not a famous race horse?