The pair speeded to victory in 64.87 seconds, leaving behind Sweden's Henrik von Eckermann and the 10-year-old Belgian Warmblood mare Hermes de Mariposa (by Canturo). Von Eckermann stopped the timer in 65.30 seconds.
Ireland's Shane Breen continued in a third spot with Laith (by Lord Z) under the saddle.
The top five was completed by Darragh Kenny (C'est Beau, by Calido I) and Doron Kuipers (Charley, by Calido I) in a fourth and fifth place.
<a href="http://www.longinestiming.com/#!/equestrian/2017/1322/html/en/longinestiming/resultlist_S4.html" target="_blank">Click here for the results</a>