The German was astride a relatively new ride, Coolio 42, on an afternoon which saw a surprising elimination for Kevin Staut.
Madrid
The handsome Andalusian stallion and his Spanish rider thrilled the home audience and improved on their third-place finish in the Grand Prix.
Sanne Thijssen, 23, became the third-youngest rider to ever win a prestigious Longines Global Champions Tour Grand Prix.
The German rider topped the third leg of the Western European League aboard her mare who "almost tries to be too perfect!”
Daniel Deusser booked his ticket to the Longines FEI Jumping World Cup Final in Gothenburg next April when posting his second win of the season in Madrid.