New Zealand equestrian Jock Paget leads the field after the dressage at the Burghley three-day event in England.
The Badminton winner scored 36.7 penalty points on Clifton Promise, including their first 10 at four star level, as he looks to to do the Badminton-Burghley double. Paget's also fifth equal on his other horse Clifton Lush.
Ingrid Klimke of Germany is second and another New Zealander, last year's winner Andrew Nicholson, is third on Nereo with 41.3 points.
Nicholson is also seventh on his other horse Avebury and 18th equal on Calico Joe, level with compatriot Sir Mark Todd on his best mount, Oloa.