Son of international rider Marcel Delestre, who later became youth coach in France for many years before taking charge of the Colombian and then Moroccan teams, Simon Delestre has only known the highest level since his earliest years.
He joined the French team in his pony years and became double French pony champion with Aurore du Bigot and the purebred Arabian stallion HN Panama du Cassou in 1994 and 1995. In 1999, he won a new French champion title, in the juniors this time with Bella de Charmois. The following year, he won the title of European champion in the young riders’ category with Didam de la Ressée.
In 2015, he won an individual bronze medal at the European Championships in Aachen on Ryan des Hayettes.
In March 2016, Simon Delestre became the world number one.