Sunday's feature in San Juan Capistrano saw just two clear rounds with the Portuguese rider edging Shawn Casady and Captain Jack.
Results from hunter/jumper and dressage competitions will be tabulated once shows are up and running again.
TV station RTL is set to broadcast video of the controversial practice, but has refused to give the German equestrian federation a copy.
Europe loses its second major Nations Cup fixture as a result of uncertainty over the re-opening of Irish society.
The performance horse Letty Boo commanded $94,000 and will be heading to Illinois while another top-selling mare will be staying in Calgary.
Ben Maher wins the main event on the final day at a show which includes some Canadian representation with Lexi Ray and Julia Tops.
The 1.60m Grand Prix at Hubside in Saint-Tropez ‒ the first outdoor CSI5* in Europe this year ‒ saw a big win for the Swiss rider.
The Canadian steered Chacco Kid to 4th place in the Du Grand Chesall during the Hubside Spring Tour in St. Tropez.
Team Canada personnel had no idea that ‘coca’ tea translated as cocaine when picking it from the breakfast buffet in their Pan Am Games hotel.
The eye-catching 7-year-old mare sold for 75,000 euros while four horses were scooped up for Canadian owners.