 During the 1997–98 ISU Junior Series, Restencourt won silver in Ukraine and bronze in Hungary to qualify for the Junior Series Final, where he finished fourth.Restencourt began the 1998–99 season on the Junior Grand Prix (JGP) series, winning gold in Saint-Gervais-les-Bains, France and then in Chemnitz, Germany.In November 1998, he competed at the 1999 World Junior Championships in Zagreb, Croatia.