Ifko and longtime partner 'Monty' were the best of 12 in the jumpoff; fellow Canuck Susan Horn and Chacca Keeps II place 4th.
“I sold my two main grand prix horses earlier in the circuit, so he had to really step up," said Saïd of his winning mount.
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.
AGDF 8 closed out with some great Canadian performances; Freestyle winner Olivia LaGoy-Weltz (USA) punches ticket to World Cup Final.
The US rider scores another personal best of 77.319%; Canada's Diane Creech and Chrevi’s Christo snag 3rd place with 71.277%.
The US rider took the $50,000 CaptiveOne Advisors 1.50m National Grand Prix; top Canadian was Tiffany Foster and Windsor Grey, 4th.
The USA’s Olivia LaGoy-Weltz and Rassing’s Lonoir won the class at AGDF week 8 on a day which also featured the Palm Beach Dressage Derby.
The pair notched their second personal best score of the season with a 74.478%, almost four points higher than the second-place finisher.
Many international riders in the field of 30 used the night class as a prep for the upcoming $150,000 Nations Cup on Friday.