[1] At the 2009 IPC European Swimming Championship in Reykjavík, Iceland, Gascón, Ana Rubio, Esther Morales Fernández and Julia Castelló won a bronze medal in the 4x100 meter medley relay.

[6] In 2010, Gascón trained at the Centre d'alt Rendiment or CAR (High Performance Center) in Sant Cugat, Barcelona Province.

[7][9] As an 18-year-old, she competed at the 2011 IPC European Swimming Championships in Berlin, Germany where she earned a gold medal in the 100 meter freestyle event.

[12] In 2012, Gascón competed at the Paralympic Swimming Championship of Spain by Autonomous Communities, and representing Barcelona, finished first in the SB9 women's 100m breaststroke.

[1] She, Esther Morales Fernández, Teresa Perales, Isabel Yingüa Hernández finished fourth in the 4x100 meter freestyle relay event.