Andrew Nicholson chases history, and Jock Paget redemption when the four star Burghley horse trial starts in Lincolnshire tomorrow night.
In the champion Nicholson's case, he will be aiming for a third successive victory on the same horse, his 14-year-old grey gelding Avebury, a feat not achieved at the prestigious event.
If Nicholson, the world's second-ranked rider, wins, it would also be his fifth title at Burghley, matching countryman Mark Todd's feat.
For New Zealand team mate Paget, last year's Burghley is an event he'd rather expunge from his memory.
He won on Clifton Promise, before the horse failed a doping test for an illegal substance called Reserpine, which until then he probably thought was a window cleaner. Now he knows far more about it than he'd want.