Dr. Dan Marks on Kristine Matlack's Whackerjack over the third fence in the Maryland Hunt Cup.
"The Hunt Cup was only Danny’s third race ride ever," said Matlack.
Dr. Marks founded the veterinary practice that is now Dr. Kevin Keane's Sports Medicine Associates of Chester County
Dr. Marks is currently doing a study on the conformation of elite jumpers and dressage horses.