The Canadian rode Battlecry during week 2 of the Wellington International Spring Series; Lebanese rider Jad Dana won the class aboard Itchcock des Dames.
The US rider dominated the competition over three rounds with two extraordinary mares to claim the title in Fort Worth.
Week 2 of the Wellington International Spring Series features tracks designed by Canadian Meghan Rawlins; the $120,000 Grand Prix is Sunday.
The British rider and her marvellous horse brought down the house, scoring a personal best 88.330% in the Freestyle to nail down the title.
The US rider dominated the competition once again in the second round, this time aboard the good mare Greya.
A landmark ruling found that while the equestrian coach committed multiple violations, the original punishment was disproportionate.
The British rider and her Olympic partner topped the Grand Prix with a score of 76.761%; all 16 entries qualify for Saturday's Freestyle.
The American piloted Toulayna to a speedy opening round; another good mare, Greya, will take over for the remainder of the competition.
This year, Major League Show Jumping brings its team format to the popular show jumping feature at the Defender Kentucky Three-Day Event.
The new partnership will extend through 2029, providing high-quality joint care management to Canadian equine athletes.