 At the 2007–08 ISU Junior Grand Prix event in Lake Placid, New York, the first Junior Grand Prix competition of her career, Nagasu won both the short and free programs to win the gold medal with a 26.47-point lead over silver medalist Alexe Gilles.Similarly at her second event, the Junior Grand Prix event in Zagreb, Croatia, Nagasu won both the short and free programs to win the event with an 11.08-point lead over silver medalist Jenni Vähämaa.These two wins qualified her for the Junior Grand Prix Final.