24 October 2015 Santo Domingo, Chile – The U.S. team put forth a great effort on Friday, 23 October, during the 2015 FEI World Endurance Championship for Young Riders and Juniors. Leading the way for the U.S. was Mary Kathryn Clark (Eatonton, Ga.) who finished 21st with a time of 7:32:37. Clark, who rode her…