Catherine Rinehart admitted a fair amount of luck went into her win in the 2010 $10,000 The Chronicle Of The Horse/USHJA Hunter Derby, held March 5 during the Gulf Coast Magnolia Classic IV in Gulfport, Miss. It was lucky she got the ride on Primera at the beginning of the week, lucky she had an earlier ride in the hunter derby to figure out her plan for the course, and even a little lucky she rode Primera four years ago when he was just a first year green horse so she knew what to expect with him.