Belinda won Sunday's Future Challenge FEI Prix St. Georges riding Quincy, while Camille was 3rd riding MSJ Fürst Zonik.
Quincy
Fellow Canadian Brittany Fraser-Beaulieu rounded out the top three on Jill Irving’s Leeghwater in this class for up-and-coming equine talent.
The pair finished just a half-point ahead of runners-up Ashley Arnold and Light My Fire, with Sloane Betker and Crack third.
The German rider got the show in Riyadh off to a great start with this win and a 2nd place finish aboard Bingo Ste Hermelle in a 1.45m class.