[4][5] Martínez mainly competed in category F12 track and field events,[2][6] and represents Madrid in Spanish national competitions.

[4] Martínez competed in the 2009 Spanish National Athletics Championship where she finished first in the women's visually impaired long jump.

[12] She competed at the 2011 IPC World Athletics Championships in Christchurch, New Zealand where she finished fourth in the long jump and seventh in the 100 meters.

[15] Prior to the start of the London Games, she trained with several other visually impaired Spanish track and field athletes in Logroño.

[4][6] She competed at the Basauriko Probak 2013, a qualifying event for a number of other Spanish competitor for the IPC World Championships.