Gregory Alan Best ( born July 23 , 1964 in Lynchburg , VA ) is an equestrian competitor and coach , best known for winning two silver medals for the US in the 1988 Summer Olympic Games in Seoul , South Korea riding the famous Gem Twist .
Gregory Alan Best ( born July 23 , 1964 in Lynchburg , VA ) is an equestrian competitor and coach in the sport of show jumping . 
 Best known for winning two silver medals for the United States in the 1988 Summer Olympic Games in Seoul , South Korea riding the famous Gem Twist .