Clarke Johnstone and Orient Express. © Rachel Smith/FEI
The only other Kiwi at the show is Mark Todd, who rides NZB Campino in the main class. Todd also has starters in the one and two star events.
A record 266 horses are to start over the three divisions.
Last year's winner, Britain's Emily Baldwin, is back with Drivetime, and Australian duo Clayton and Lucinda Fredericks are also among the 47 starters in the World Cup class.
Overall, there are riders from 14 nations participating: Australia, Belgium, Bulgaria, China, Czech Republic, France, Great-Britain, Italy, Netherlands, New Zealand, Republic of South Africa, Spain, Switzerland, and the USA.