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Show jumper Katherine “Katie” Dinan won her first five-star grand prix last fall with Brego R’N B. It was the 2023 Longines FEI Jumping World Cup™ CSI5*-W at the Washington International Horse Show in Upper Marlboro, Maryland.
Of the 24 horses and riders in the grand prix, eight went clear and returned to the eight-fence jump-off (see course below). In the shortened course, Dinan and Brego, a 17-year-old Dutch Warmblood gelding, jumped
