She competed under the British flag at the World Equestrian Games in Rome 1998 and Aachen in 2006 and the European Championships in Arnheim 1998.
[1] She is the daughter of Nancy and James Pflueger, a Kauai landowner, auto dealer, philanthropist and self-made millionaire.
[2] On February 1, 1997, Sandy Pflueger married British Olympian and coach of the American Eventing team, Captain Mark Phillips, whose first wife was Princess Anne, the daughter of Queen Elizabeth II.
Pflueger was the co-owner of Hawaii's Ka Loko Dam, which collapsed after heavy rain on March 14, 2006, killing seven people.
Unlicensed grading operations had been carried out, with the knowledge of the local authorities, who failed to enforce a stop-work order.