The Canadian piloted Her Game Ball BG to victory; "It's a strange sport. You do get better with age." she commented on her recent successes.
Canadian owners celebrated podium places by their horses, with Ariel Grange's Farrel first and the Rein Family LLC's Nikka third.
Canada's Erynn Ballard placed 4th riding Dior in the $117,000 class at WEC-Ocala ahead of Sunday's $200,000 Grand Prix.
The Canadian and her stallion made a return to the winner's circle in the Grand Prix Special; Gallagher and Come Back de Massa 2nd in 4* Freestyle.
The Olympic champion rode the mare Just Be Gentle to win Thursday's feature event at World Equestrian Center – Ocala.
The Canadian swept the Grand Prix division at World Equestrian Center – Ocala January CDI3* Show riding her Come Back de Massa.
The WEC Grand Arena was the scene for a contest between 12 nations; Canadian Tiffany Foster placed sixth riding Electrique.
The 17-year-old from Burlington rode her own Toucare KDW Z to one of just two double-clear rounds to win the 1.45m event on Sunday.
The pair won the $200,000 UF Health Grand Prix CSI4* in a three-horse jumpoff – the US rider's third international victory in two weeks.
The Canadian rode the 10-year-old Belgian Warmblood owned by his mom Lesley Martin to the win in their first FEI week together at WEC-Ocala.