Riding Hello Chadora Lady, Brash secured his first Longines Global Champions Tour Grand Prix win since 2021.
The victory came aboard Hello Jefferson in a starting field of 37, edging Germany's Daniel Deusser and Killer Queen VDM.
There was no change at the top as emotions ran high on the second day of the hotly-contested Jumping Championship in Herning.
Top ponies were in the spotlight in a pair of Mini Stakes, while Scott Brash and Hello Mr President ruled the Christmas Tree Stakes.
The grand finale of the CSI5* was the perfect tune-up prior to the Olympics for Brash (GBR) against a tough international field.
Ben Maher and Scott Brash claim victory in the two CSI5* events of the day; Canada's Mario Deslauriers 8th in Manama Rose Show Stakes.
The Scottish rider won the Hubside Jumping de Grimaud feature for the second time - this time aboard Hello Jefferson - ahead of Edward Levy and Jos Verlooy.
Olympia, The London International Horse Show, concluded in spectacular fashion with the world’s top show jumpers in the Turkish Airlines Olympia Grand Prix.
The 2019 Rolex Grand Prix at the Concours Hippique International de Genève was won by Rolex Testimonee Martin Fuchs from Switzerland riding Clooney 51.
Scott Brash has announced that his longtime partner Hello Sanctos (Quasimodo van de Molendreef x Nabab de Reve) is being retired.