New Zealand Olympian and the world number one eventer Andrew Nicholson is chasing a huge payday.
Nicholson's sitting in second place on Quimbo and third spot on Calico Joe, at the end of the dressage phase at the Kentucky Three Day event.
The 51-year-old is chasing the $412,000 Grand Slam prize for the rider who wins Burghley, Badminton and Kentucky in succession.
With Burghley already in the bag, Nicholson needs victory at Kentucky followed by Badminton next weekend.
This morning Nicholson posted a 38-penalty point test to trail arch-rival, and the 2012 Kentucky winner, William Fox-Pitt of Great Britain, who leads aboard the stallion Chilli Morning after a 33.3 penalty point test.
The cross country course begins tomorrow.