The $75,000 Rosenbaum PLLC Grand Prix saw 32 entries contest a course set by Eric Hasbrouck, with eight advancing to the jump-off.
A horse in Tent #17 on the grounds of Palm Beach International Equestrian Center has had a nasal swab test positive and is under quarantine.
Tiffany Foster and Northern Light are top Canadians, placing 9th, as the final week of the Winter Equestrian Festival gets underway.
The mare VDL High Five fetched half a million dollars from an undisclosed buyer as a dozen promising athletes went under the hammer.
Darragh Kenny, the top-ranked Irishman in the world at #9, produced his winning round on a horse he had only been riding for two weeks.
Sunday's feature class at WEF 8 saw another big win for the German rider; Mario Deslauriers' former mount Amsterdam is 3rd with new rider.
The US rider took the $50,000 CaptiveOne Advisors 1.50m National Grand Prix; top Canadian was Tiffany Foster and Windsor Grey, 4th.
Many international riders in the field of 30 used the night class as a prep for the upcoming $150,000 Nations Cup on Friday.
Bertram Allen (IRL) is brilliant aboard Pacino Amiro to take the win in the feature class of week 7 of the Winter Equestrian Festival.
Week seven at WEF kicked off with a Wednesday win for McLain Ward aboard a horse he says is never ridden between shows, just turned out.