Athletes from Australia, Argentina, Brazil, Canada, Israel, Romania, Spain and many other countries will compete or observe in preparation for next year's Endurance World Championship at the 2010 Games.
Kentucky Cup Endurance will feature both a 75-mile (120km) race and a 100-mile (160km) race. Both races comprise a series of loops through the Kentucky Horse Park and surrounding properties, frequently returning to the Kentucky Horse Park for required veterinary inspections.
Current World Champion Maria Alvarez Ponton of Spain, and the mother-daughter team of Valerie Kanavy and Danielle McGunigal of the United States will also compete. Kanavy is a two-time world champion (1994 and 1998) and also placed second to her daughter in the 1996 World Championships.
The team from the United Arab Emirates will be led by HH Sheikh Mohammed bin Rashid Al Maktoum. His son, HE Sheikh Majid bin Mohammed Al Maktoum, will also ride for the UAE.
The Australian starters in the 160km race are Matthew Sample and Penny, Peter and Alexandra Toft, and Simone Krahnen takes part in the 120km ride.