Charlotte Dujardin and Imhotep scored a whopping 89.465% in the Grand Prix Freestyle ahead of Charlotte Fry and Everdale's 85+.
It was a rough start to the week for Charlotte Dujardin, whose horse and baby girl were both sick, but she led her team to the win.
Riesenbeck, Germany, is the site of this important championship which will determine the last three Olympic team places from Group A/B.
Five days of jumping, dressage, and driving competition drew to a close on Sunday with a win for Martin Fuchs in the Rolex Grand Prix.
The London crowd was delighted as the pair sparkled in the 4th leg of the FEI Dressage World Cup 2021/2022 Western European League.
Charlotte Dujardin, reunited with her Tokyo Olympic mount Gio, set a new personal best score of 82.553%, while Fuchs takes the Santa Stakes.
The German captured her third gold medal of the week on home soil riding Dalera, over Cathrine Dufour (DEN) and Charlotte Dujardin (GBR).
There were tears and cheers as the German ruled the ring with high scores, an Olympic GPS record and an unbeatable Freestyle.
Two great rides on Sunday from Dorothee Schneider with Showtime and Isabell Werth with Bella Rose secured the pole position.
Charlotte Dujardin has chosen a horse with limited ring experience for her dressage title defence in Tokyo.